Turtle Beach (HEAR) 10-K13 Mar 202019 FY Annual reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Dec. 31, 2019	Feb. 28, 2020	Jun. 30, 2019
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Registrant Name	Turtle Beach Corporation
Entity Central Index Key	0001493761
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Entity Public Float			$ 157,302,573
Entity Common Stock, Shares Outstanding		14,500,433
Entity Shell Company	false
Entity Small Business	true
Entity Emerging Growth Company	false
Title of 12(b) Security	Common Stock, par value $0.001
Trading Symbol	HEAR
Security Exchange Name	NASDAQ
Entity File Number	001-35465
Entity Incorporation, State or Country Code	NV
Entity Tax Identification Number	27-2767540
Entity Address, Address Line One	11011 Via Frontera
Entity Address, Address Line Two	Suite A/B
Entity Address, City or Town	San Diego
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92127
City Area Code	888
Local Phone Number	496-8001
Document Annual Report	true
Document Transition Report	false
Documents Incorporated by Reference	The information required by Part III of this Report is incorporated herein by reference from the registrant’s definitive proxy statement or annual report on Form 10-K/A to be filed with the Securities and Exchange Commission within 120 days after the close of the registrant’s fiscal year.

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 8,249	$ 7,078
Accounts receivable, less allowances of $24,940 and $23,271 in 2019 and 2018, respectively	44,530	52,797
Inventories	45,711	49,472
Prepaid expenses and other current assets	4,057	4,469
Total Current Assets	102,547	113,816
Property and equipment, net	3,962	5,856
Deferred income taxes	7,439
Goodwill	8,515
Intangible assets, net	6,011	1,036
Other assets	2,877	1,212
Total Assets	131,351	121,920
Current Liabilities:
Revolving credit facility	15,655	37,385
Accounts payable	22,511	17,724
Other current liabilities	26,422	18,488
Total Current Liabilities	64,588	73,597
Deferred income taxes	153	187
Financial instrument obligation		7,848
Other liabilities	3,223	2,792
Total Liabilities	67,964	84,424
Commitments and Contingencies
Stockholders’ Equity
Common stock, $0.001 par value - 25,000,000 shares authorized; 14,488,152 and 14,268,184 shares issued and outstanding as of December 31, 2019 and 2018, respectively	14	14
Additional paid-in capital	176,776	169,421
Accumulated deficit	(113,519)	(131,463)
Accumulated other comprehensive income (loss)	116	(476)
Total Stockholders’ Equity	63,387	37,496
Total Liabilities and Stockholders’ Equity	$ 131,351	$ 121,920

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Statement Of Financial Position [Abstract]
Allowances and discounts	$ 24,940	$ 23,271
Common stock par value (in dollars per share)	$ 0.001	$ 0.001
Common stock shares authorized	25,000,000	25,000,000
Common stock shares issued	14,488,152	14,268,184
Common stock shares outstanding	14,488,152	14,268,184

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Net revenue	$ 234,663	$ 287,437	$ 149,135
Cost of revenue	155,950	178,738	98,132
Gross profit	78,713	108,699	51,003
Operating expenses:
Selling and marketing	38,634	32,389	24,385
Research and development	7,856	5,611	5,587
General and administrative	21,796	16,658	15,700
Restructuring charges			533
Total operating expenses	68,286	54,658	46,205
Operating income	10,427	54,041	4,798
Interest expense	929	5,335	7,916
Other non-operating expense (income), net	(2,209)	7,779	(463)
Income (loss) before income tax	11,707	40,927	(2,655)
Income tax expense (benefit)	(6,237)	1,737	593
Net income (loss)	$ 17,944	$ 39,190	$ (3,248)
Net income (loss) per share
Basic (in dollars per share)	$ 1.24	$ 2.90	$ (0.26)
Diluted (in dollars per share)	$ 1.04	$ 2.74	$ (0.26)
Weighted average number of shares:
Basic (in shares)	14,483	13,512	12,336
Diluted (in shares)	15,688	14,289	12,336

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 17,944	$ 39,190	$ (3,248)
Foreign currency translation adjustment	592	(273)	357
Other comprehensive income (loss)	592	(273)	357
Comprehensive income (loss)	$ 18,536	$ 38,917	$ (2,891)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 17,944	$ 39,190	$ (3,248)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	4,556	3,954	4,074
Amortization of intangible assets	642	303	348
Amortization of debt financing costs	189	1,081	1,593
Stock-based compensation	3,558	1,877	1,430
Accrued interest on Series B redeemable preferred stock		501	1,441
Paid-in-kind interest		2,028	2,508
Deferred income taxes	(7,473)	549	181
Provision for (reversal of) sales returns reserve	(397)	3,679	942
Provision for (reversal of ) doubtful accounts	(10)	431	48
Provision for obsolete inventory	3,483	3,437	1,676
Loss on disposal of property and equipment	28	111	9
Unrealized loss (gain) on financial instrument obligation	(1,601)	5,291
Decrease in unrecognized tax benefit	(686)
Decrease in fair value of contingent consideration	(471)
Loss on debt extinguishment		1,572
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	9,931	(6,978)	3,109
Inventories	7,264	(25,391)	(7,496)
Accounts payable	(393)	4,101	1,494
Prepaid expenses and other assets	(66)	(481)	755
Income taxes payable	(371)	562	89
Other liabilities	3,247	6,432	(5,535)
Net cash provided by operating activities	39,374	42,249	3,418
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property and equipment	(1,912)	(5,079)	(4,411)
Acquisition of a business, net of cash acquired	(12,667)
Net cash used for investing activities	(14,579)	(5,079)	(4,411)
CASH FLOWS FROM FINANCING ACTIVITIES
Borrowings on revolving credit facilities	219,910	361,073	172,694
Repayment of revolving credit facilities	(241,640)	(362,154)	(170,132)
Repayment of capital leases			(4)
Proceeds of term loan		3,265
Repayment of term loan		(14,985)	(2,647)
Repayment of subordinated notes - related party		(23,940)
Proceeds from exercise of stock options and warrants	330	4,235
Repurchase of common stock	(2,525)
Repurchase of common stock to satisfy employee tax withholding obligations	(255)	(246)
Debt financing costs		(612)	(73)
Cash portion of loss on debt extinguishment		(375)
Net cash used for financing activities	(24,180)	(35,129)	(162)
Effect of exchange rate changes on cash and cash equivalents	556	(210)	219
Net increase (decrease) in cash and cash equivalents	1,171	1,831	(936)
Cash and cash equivalents - beginning of period	7,078	5,247	6,183
Cash and cash equivalents - end of period	8,249	7,078	5,247
SUPPLEMENTAL DISCLOSURE OF INFORMATION
Cash paid for interest	769	1,496	1,975
Cash paid for income taxes, net of refunds	2,317
Accrual for purchases of property and equipment	16	348	$ 183
Reclassification of financial instrument obligation	$ 6,248
Series B Redeemable Preferred Stock
CASH FLOWS FROM FINANCING ACTIVITIES
Settlement of Series B redeemable preferred stock		(1,390)
SUPPLEMENTAL DISCLOSURE OF INFORMATION
Exchange of Series B redeemable preferred stock		$ 18,032

Consolidated Statement of Stock

Consolidated Statement of Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Series B Preferred Stock	Common stock	Common stockSeries B Preferred Stock	Additional Paid-in Capital	Additional Paid-in CapitalSeries B Preferred Stock	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2016	$ (20,696)		$ 12		$ 146,652		$ (166,800)	$ (560)
Beginning Balance, shares at Dec. 31, 2016			12,315,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(3,248)						(3,248)
Other comprehensive income (loss), net of tax	357							357
Issuance of restricted stock, shares			34,000
Stock-based compensation	1,430				1,430
Ending Balance at Dec. 31, 2017	(22,157)		$ 12		148,082		(170,048)	(203)
Ending Balance, shares at Dec. 31, 2017			12,349,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of the adoption of ASC 606	(605)						(605)
Net income (loss)	39,190						39,190
Other comprehensive income (loss), net of tax	(273)							(273)
Issuance of common stock in exchange for Series B redeemable preferred stock, net of issuance costs		$ 15,475		$ 1		$ 15,474
Issuance of common stock in exchange for Series B redeemable preferred stock, net of issuance costs, shares				1,307,000
Issuance of restricted stock, shares			56,000
Repurchase of common stock and retirement of related treasury shares	(246)				(246)
Repurchase of common stock and retirement of related treasury shares, shares			(12,000)
Issuance of common stock upon exercise of warrants	778				778
Issuance of common stock upon exercise of warrants, shares			77,000
Stock options exercised	3,457		$ 1		3,456
Stock options exercised, shares			491,000
Stock-based compensation	1,877				1,877
Ending Balance at Dec. 31, 2018	37,496		$ 14		169,421		(131,463)	(476)
Ending Balance, shares at Dec. 31, 2018			14,268,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	17,944						17,944
Other comprehensive income (loss), net of tax	592							592
Reclassification of financial instrument obligation	6,248				6,248
Issuance of restricted stock	(1)				(1)
Issuance of restricted stock, shares			130,000
Repurchase of common stock and retirement of related treasury shares	(255)				(255)
Repurchase of common stock and retirement of related treasury shares, shares			(23,000)
Common stock buyback	$ (2,525)				(2,525)
Common stock buyback, shares	(300,000)		(271,000)
Issuance of common stock upon exercise of warrants, shares			296,000
Stock options exercised	$ 330				330
Stock options exercised, shares	88,927		89,000
Stock-based compensation	$ 3,558				3,558
Ending Balance at Dec. 31, 2019	$ 63,387		$ 14		$ 176,776		$ (113,519)	$ 116
Ending Balance, shares at Dec. 31, 2019			14,488,000

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
Summary of Significant Accounting Policies	Dec. 31, 2019
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note Organization Turtle Beach Corporation (“Turtle Beach” or the “Company”), headquartered in San Diego, California and incorporated in the state of Nevada in 2010, is a premier audio technology company with expertise and experience in developing, commercializing and marketing innovative products across a range of large addressable markets under the Turtle Beach® and ROCCAT® brands. Turtle Beach is a worldwide leader of feature-rich headset solutions for use across multiple platforms, including video game and entertainment consoles, handheld consoles, personal computers (“PC”), tablets and mobile devices. ROCCAT is a gaming keyboards, mice and other accessories brand focused in the PC peripherals market. VTB Holdings, Inc. (“VTBH”), a wholly-owned subsidiary of Turtle Beach and the owner of Voyetra Turtle Beach, Inc. (“VTB”), was incorporated in the state of Delaware in 2010. VTB, the owner of Turtle Beach Europe Limited (“TB Europe”), was incorporated in the state of Delaware in 1975 with operations principally located in Valhalla, New York. Basis of Presentation The accompanying consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and, in the opinion of management, reflect all adjustments (which include normal recurring adjustments) considered necessary for a fair presentation of the financial position, results of operations, and cash flows for the periods presented. All intercompany accounts and transactions have been eliminated in consolidation. Reverse Split On April 6, 2018, the Company effected a one-for-four reverse stock split of its common stock pursuant to which every four shares of common stock outstanding immediately prior to the reverse split were combined into one share of common stock. As Uses of Estimates The preparation of financial statements in conformity with generally accepted accounting principles requires management to use estimates and assumptions that affect the reported amount of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenue and expenses during the reporting period. The significant estimates and assumptions used by management affect: sales return reserve, allowances for cash discounts, warranty reserve, valuation of inventory, valuation of long-lived assets, goodwill and other intangible assets, depreciation and amortization of long-lived assets, valuation of deferred tax assets, determination of fair value of stock-based awards, stock warrants and share-based compensation. The Company evaluates estimates and assumptions on an ongoing basis using historical experience and other factors and adjusts those estimates and assumptions when facts and circumstances dictate. As future events and their effects cannot be determined with precision, actual results could differ from these estimates, and those differences could be material to the consolidated financial statements. Revenue Recognition and Sales Return Reserve Net revenue consists primarily of revenue from the sale of gaming headsets and accessories to wholesalers, retailers and to a lesser extent, on-line customers. These products function on a standalone basis (in connection with a readily available gaming console, personal computer or stereo) and are not sold with additional services or rights to future goods or services. Revenue is recorded for a contract through the following steps: (i) identifying the contract with the customer; (ii) identifying the performance obligations in the contract; (iii) determining the transaction price; (iv) allocating the transaction price to the performance obligations; and (v) recognizing revenue when or as each performance obligation is satisfied. Each contract at inception is evaluated to determine whether the contract should be accounted for as having one or more performance obligations. The Company's business activities were determined to be a single performance obligation with revenue recognized when obligations under the terms of a contract with its customer are satisfied; generally this occurs at a point in time when the risk and title to the product transfers to the customer. The Company's standard terms of delivery are included in its contracts of sale, order confirmation documents, and invoices. The Company excludes sales taxes collected from customers from “Net Revenue” in its Consolidated Statements of Operations. Certain customers may receive cash-based incentives (including cash discounts, quantity rebates, and price concessions), which are accounted for as variable consideration. Provisions for sales returns are recognized in the period the sale is recorded based upon the Company's prior experience and current trends. These revenue reductions are established by the Company based upon management’s best estimates at the time of sale following the historical trend, adjusted to reflect known changes in the factors that impact such reserves and allowances, and the terms of agreements with customers. As of December 31, 2019, the Company had an allowance for cash discounts of $16.0 million and an allowance for sales returns of $8.8 million, and does not expect to have significant changes in its estimates for variable considerations. Cost of Revenue and Operating Expenses The following table illustrates the primary costs classified in each major expense category: Cost of Revenue Operating Expenses Cost to manufacture products; Payroll, bonus and benefit costs; Freight costs associated with moving product from suppliers to distribution centers and to customers; Costs incurred in the research and development of new products and enhancements to existing products; Costs associated with the movement of merchandise through customs; Depreciation related to demonstration units; Costs associated with material handling and warehousing; Legal, finance, information systems and other corporate overhead costs; Global supply chain personnel costs; Sales commissions, advertising and marketing costs. Product royalty costs. Product Warranty Obligations The Company provides for product warranties in accordance with the contract terms given to various customers by accruing estimated warranty costs at the time of revenue recognition. Warranties are generally fulfilled by replacing defective products with new products. Marketing Costs Costs associated with the production of advertising, such as print and other costs, as well as costs associated with communicating advertising that has been produced, such as magazine ads, are expensed when the advertising first appears in public. Advertising costs were approximately $7.5 million, $6.7 million and $4.2 million for the years ended December 31, 2019, 2018 and 2017, respectively. The Company also incurs co-operative advertising costs that represent reimbursements to customers for shared marketing expenses for sale of its products. These reimbursements are recorded as reductions of net revenue based on a percentage of sales for all period presented. Co-operative advertising reimbursements were approximately $5.7 million, $5.4 million and $3.1 million for the years ended December 31, 2019, 2018 and 2017, respectively. Deferred Financing Costs Deferred financing costs represent costs incurred in conjunction with our debt financing activities and are capitalized and amortized over the life of the related financing arrangements. If the debt is retired early, the related unamortized deferred financing costs are written off in the period the debt is retired as part of the net carrying value of the debt, and any gains or losses are recorded in the statement of operations under the caption “Other non-operating expense (income), net.” Stock-Based Compensation Compensation costs related to stock options and restricted stock grants are calculated based on the fair value of the stock-based awards on the date of grant, net of estimated forfeitures. The grant date fair value of awards is determined using the Black-Scholes option-pricing model and the related stock-based compensation is recognized on a straight-line basis over the period in which an employee is required to provide service in exchange for the award, which is generally four years. The Company estimates its forfeiture rate based on an analysis of actual forfeitures and will continue to evaluate the adequacy of the forfeiture rate based on actual forfeiture experience, analysis of employee turnover behavior, and other factors. The impact from any forfeiture rate adjustment would be recognized in the period of adjustment and if the actual number of future forfeitures differs from estimates, the Company might be required to record adjustments to stock-based compensation expense. For stock-based awards issued to non-employees, including consultants, compensation expense is based on the fair value of the Exit and Disposal Costs Management-approved restructuring activities are periodically initiated to achieve cost savings through reduced operational redundancies and to position the Company strategically in the market in response to prevailing economic conditions and associated customer demand. Costs associated with restructuring actions can include severance, infrastructure charges to vacate facilities or consolidate operations, contract termination costs and other related charges. For involuntary separation plans, a liability is recognized when it is probable and reasonably estimable. For one-time termination benefits, such as additional severance pay or benefit payouts, and other exit costs, such as lease termination costs, the liability is measured and recognized initially at fair value in the period in which the liability is incurred, with subsequent changes to the liability recognized as adjustments in the period of change. Net Earnings (Loss) per Common Share Basic earnings (loss) per share is calculated by dividing net income (loss) associated with common stockholders by the weighted average number of common shares outstanding during the period. Diluted earnings (loss) per share assumes the issuance of additional shares of common stock by the Company upon exercise of all outstanding stock options, stock warrants and contingently issuable securities if the effect is dilutive, in accordance with the treasury stock method. Cash Equivalents Cash and short-term highly liquid investments with original maturity dates of three months or less at time of purchase and no redemption restrictions are considered cash and cash equivalents. Inventories Inventories consist primarily of finished goods and related component parts, and are stated at the lower of weighted average cost or market value (estimated net realizable value) using the first in, first out (“FIFO”) method. The Company maintains an inventory allowance for returned goods, slow-moving and unused inventories based on the historical trend and estimates. Inventory write-downs, once established, are not reversed as they establish a new cost basis for the inventory. Inventory write-downs are included as a component of cost of revenues in the accompanying consolidated statements of operations. Property and Equipment, net Property and equipment are presented at cost less accumulated depreciation and amortization. Repairs and maintenance expenditures are expensed as incurred. Depreciation and amortization are computed on a straight-line basis over the following estimated useful lives: Estimated Life Machinery and equipment 3 years Software and software development 2-3 years Furniture and fixtures 5 years Tooling 2 years Leasehold improvements Term of lease or economic life of asset, if shorter Demonstration units and convention booths 2 years Valuation of Long-Lived and Intangible Assets and Goodwill At acquisition, we estimate and record the fair value of purchased intangible assets, which primarily consists of in-process research and development, customer relationships, trademarks and trade names, and patents. The fair values of these intangible assets are estimated based on the Company’s assessment. Goodwill is the excess of the purchase price over the fair value of identifiable net assets acquired in business combinations. Goodwill and certain other intangible assets having indefinite lives are not amortized to earnings, but instead are subject to periodic testing for impairment. Intangible assets determined to have definite lives are amortized over their remaining useful lives. Long-lived and intangible assets are assessed for potential impairment whenever events or changes in circumstances indicate that full recoverability of net asset balances through future cash flows is in question. Goodwill and indefinite-lived intangible assets are assessed at least annually, but also whenever events or changes in circumstances indicate the carrying values may not be recoverable. Factors that could trigger an impairment review include (a) significant underperformance relative to historical or projected future operating results; (b) significant changes in the manner of use of the acquired assets or the strategy for the Company’s overall business; (c) significant negative industry or economic trends; (d) significant decline in the Company’s stock price for a sustained period; and (e) a decline in the Company’s market capitalization below net book value. Assessment for possible impairment is based on the Company’s ability to recover the carrying value of the long-lived asset from the expected future pre-tax cash flows. The expected future pre-tax cash flows are estimated based on historical experience, internal knowledge and market data. Estimates of future cash flows require the Company to make assumptions and to apply judgment, including forecasting future sales and expenses and estimating the useful lives of assets. If the expected future cash flows related to the long-lived assets are less than the assets’ carrying value, an impairment charge is recognized for the difference between estimated fair value and carrying value. When performing the Company’s evaluation of goodwill for impairment, if it concludes qualitatively that it is not more likely than not that the fair value of the reporting unit is less than its carrying amount, then the two-step impairment test is not required. If the Company is unable to reach this conclusion, then we would perform the two-step impairment test. Initially, the fair value of the reporting unit is compared to its carrying amount. To the extent the carrying amount of a reporting unit exceeds the fair value of the reporting unit; we are required to perform a second step, as this is an indication that the reporting unit goodwill may be impaired. In this step, the Company compares the implied fair value of the reporting unit goodwill with the carrying amount of the reporting unit goodwill and recognize a charge for impairment to the extent the carrying value exceeds the implied fair value. The implied fair value of goodwill is determined by allocating the fair value of the reporting unit to all of the assets (recognized and unrecognized) and liabilities of the reporting unit in a manner similar to a purchase price allocation. The residual fair value after this allocation is the implied fair value of the reporting unit goodwill. In addition, identifiable intangible assets having indefinite lives are reviewed for impairment on an annual basis using a methodology consistent with that used to evaluate goodwill. There are inherent assumptions and estimates used in developing future cash flows requiring management judgment including projecting revenues, interest rates and the cost of capital. Many of the factors used in assessing fair value are outside the Company’s control and it is reasonably likely that assumptions and estimates will change in future periods. These changes can result in future impairments. In the event the Company’s planning assumptions were modified resulting in impairment to our assets, the associated expense would be included in the Consolidated Statements of Operations, which could materially impact its business, financial condition and results of operations. In connection with the ROCCAT acquisition, the Company performed a valuation of the acquired goodwill and intangible assets and recorded $8.5 million of goodwill based on the fair values of the assets acquired and liabilities assumed. The Company conducted its annual impairment assessment on December 31, 2019 taking a qualitative evaluation approach to determine if there were any adverse market factors or changes in circumstances that would indicate that the carrying value of goodwill as determined in connection with the current year acquisition may not be recoverable. The Company’s qualitative assessment included an analysis of business changes, economic outlook, financial trends and forecasts, and events or circumstances that could unfavorably impact the key assumptions. Based on this review, management determined that no events or changes in circumstances indicated that the carrying value may not be recoverable and further consideration of potential goodwill impairment was not considered necessary. Income Taxes The Company accounts for income taxes in accordance with the asset and liability method. Under the asset and liability method, deferred tax assets and liabilities are recognized based on the differences between the financial statement carrying value of existing assets and liabilities and their respective tax bases based on enacted tax laws and statutory tax rates applicable to the periods in which the Company expects the temporary differences to reverse. The Company had elected to record a “deferred charge” for basis differences relating to intra-entity profits as recognition as a deferred tax asset is prohibited. A valuation allowance is established for deferred tax assets when management anticipates that it is more likely than not that all, or a portion, of these assets would not be realized. In determining whether a valuation allowance is warranted, all positive and negative evidence and all sources of taxable income such as prior earnings history, expected future earnings, carryback and carryforward periods and tax strategies are considered to estimate if sufficient future taxable income will be generated to realize the deferred tax asset. The assessment of the adequacy of a valuation allowance is based on estimates of taxable income by jurisdiction and the period over which deferred tax assets will be recoverable. In the event that actual results differ from these estimates, or these estimates are adjusted in future periods for current trends or expected changes in assumptions, the Company may need to modify the level of valuation allowance which could materially impact our business, financial condition and results of operations. The tax effects of uncertain tax positions taken or expected to be taken in income tax returns are recognized only if they are “more likely-than-not” to be sustained on examination by the taxing authorities based on the technical merits as of the reporting date. The tax benefits recognized in the financial statements from such positions are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement. The Company recognizes estimated accrued interest and penalties related to uncertain tax positions in income tax expense. The Company and its domestic subsidiaries file a consolidated federal income tax return, while the Company’s foreign subsidiary files in its respective local jurisdictions. Fair Value of Financial Instruments The Company determines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company uses a hierarchical structure to prioritize the inputs used to measure fair value into three broad levels. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1), then to quoted market prices for similar assets or liabilities in active or inactive markets (Level 2) and gives the lowest priority to unobservable inputs (Level 3). Financial instruments consist of cash and cash equivalents, accounts receivable, accounts payable, revolving line of credit, long-term debt and warrants reported as a financial instrument obligation. Cash equivalents are stated at amortized cost, which approximated fair value as of the consolidated balance sheet dates due to the short period of time to maturity; and accounts receivable and accounts payable are stated at their carrying value, which approximates fair value due to the short time to the expected receipt or payment. The revolving line of credit and long-term debt are stated at the carrying value as the stated interest rate approximates market rates currently available to the Company, which are considered Level 2 inputs. The wholly-funded warrants are stated at their fair value based on a Black-Scholes pricing model. The Company did not have any non-financial assets or non-financial liabilities recognized at fair value on a recurring basis at December 31, 2019 and 2018. Foreign Currency Translation Balance sheet accounts of the Company’s foreign subsidiaries are translated at the exchange rate in effect at the end of each period. Statement of operations accounts are translated using the weighted average of the prevailing exchange rates during each period. Gains or losses resulting from foreign currency transactions are included in the Company’s Consolidated Statements of Operations under the caption “Other non-operating expense (income), net” whereas translation adjustments are reflected in the Consolidated Statements of Comprehensive Income (Loss) under the caption “Foreign currency translation adjustment.” Concentration of Credit Risk Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of investments in cash, cash equivalents and accounts receivables. The Company is exposed to credit risk and liquidity risk in the event of default by the financial institutions or issuers of investments in excess of FDIC insured limits. The Company performs periodic evaluations of the relative credit standing of these financial institutions and limits the amount of credit exposure with any institution. Accounts receivable are unsecured and represent amounts due based on contractual obligations of customers. The Company’s three largest individual customers accounted for approximately 42% of its gross sales in the aggregate for the year ended December 31, 2019, or individually 11%, 20% and 11%, compared to 13%, 19% and 11% in 2018 and 16%, 14% and 13% in 2017. In addition, these three customers accounted for 33%, 29% and 9% of accounts receivable as of December 31, 2019 and 30%, 29% and 18% as of December 31, 2018. Concentrations of credit risk with respect to accounts receivable are mitigated by performing ongoing credit evaluations of customers to assess the probability of collection based on a number of factors, including past transaction experience with the customer, evaluation of their credit history, limiting the credit extended, and review of the invoicing terms of the contract. In addition, the Company has credit insurance in place through a third-party insurer against defaults by certain other domestic and international customers, subject to policy limits. The Company generally does not require customers to provide collateral to support accounts receivable. The Company has recorded an allowance for doubtful accounts for those receivables that were determined not to be collectible. Foreign cash balances at December 31, 2019 and 2018 were $5.9 million and $5.2 million, respectively. Segment Information The company operates in a single reportable segment and two reporting unit structure. The entire business is managed by a single management team whose chief operating decision maker is the Chief Executive Officer, who reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance Recent Accounting Pronouncements In February 2016, the FASB issued ASU No. 2016-02, Leases $3.3 million. ASU No. 2017-04 Intangibles-Goodwill and Other: Simplifying the Test for Goodwill Impairment In June 2018, the FASB issued ASU 2018-07, Improvements to Non-employee Share-Based Payment Accounting Topic 718, Compensation—Stock Compensation In August 2018, the FASB issued ASU No. 2018-13, Changes to the Disclosure Requirements for Fair Value Measurement In December 2019, the FASB issued ASU No. 2019-12, Simplifying the Accounting for Income Taxes, ASC Topic 740

Acquisitions

Acquisitions	12 Months Ended
Acquisitions	Dec. 31, 2019
Business Combinations [Abstract]
Acquisitions	Note 2. Acquisitions ROCCAT On May 31, 2019, the Company completed its acquisition of the business and assets of ROCCAT, a provider of gaming keyboards, mice and other accessories for a purchase price of approximately $12.7 million and up to $3.4 million in potential earn-outs based on revenues for the years ending December 31, 2019 and 2020, as provided in the asset purchase agreement. The purchase price was paid in cash at closing and was funded by the Company’s cash reserves and additional borrowings under its credit facility. In addition, business transaction costs incurred i n connection with the acquisition of The preliminary ROCCAT purchase price allocation as of May 31, 2019 is shown in the following table: (In thousands) Amount Receivables $ 1,257 Inventories 6,986 Property and equipment 1,110 Intangible assets 5,589 Other long-term assets 461 Accounts payable (5,510 ) Accrued and other current liabilities (3,821 ) Contingent consideration (1,592 ) Other non-current liabilities (328 ) Total identifiable net assets 4,152 Goodwill 8,515 Total consideration $ 12,667 The fair values of ROCCAT’s assets and liabilities are provisional and were determined based on preliminary estimates and assumptions that management believes are reasonable. The preliminary purchase price allocation is subject to further refinement and may require significant adjustments to arrive at the final purchase price allocation. These adjustments will primarily relate to certain short-term assets, intangible assets, and certain liabilities including contingent consideration. The final determination of the fair value of certain assets and liabilities will be completed as soon as the necessary information is available, including the completion of a valuation of the tangible and intangible assets and the contingent consideration, but no later than one year from the acquisition date. The goodwill from the acquisition of ROCCAT, which is fully deductible for tax purposes, consists largely of synergies and economies of scale expected from combining the operations of ROCCAT and the Company’s existing business. The estimate of fair value of ROCCAT’s identifiable intangible assets was determined primarily using the “income approach,” which requires a forecast of all of the expected future cash flows either through the use of the multi-period excess earnings method or the relief-from-royalty method. Some of the more significant assumptions inherent in the development of intangible asset values include: the amount and timing of projected future cash flows, the discount rate selected to measure the risks inherent in the future cash flows, the assessment of the intangible asset’s life cycle, as well as other factors. The following table summarizes key information underlying intangible assets related to the ROCCAT acquisition: (In thousands) Life Amount Customer relationships 7 Years $ 2,119 Tradenames 10 Years 2,686 Developed technology 7 Years 784 Total $ 5,589 For the year ended December 31, 2019, ROCCAT had revenue of $14.4 million. The Company is are unable to provide the results of operations attributable to ROCCAT as those operations were substantially integrated into our legacy business. The Company has not presented combined pro forma financial information of the Company and the pre-acquisition ROCCAT business because the results of operations of the acquired business are considered immaterial. In connection with the $1.6 million fair value of the potential $3.4 million earn-outs, for the year ended December 31, 2019, the fair value of the contingent consideration decreased $0.5 million primarily as a result of the revenues not achieving the stated threshold in the asset purchase agreement.

Fair Value Measurement

Fair Value Measurement	12 Months Ended
Fair Value Measurement	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurement	Note The Company follows a three-level fair value hierarchy that prioritizes the inputs used to measure fair value. This hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows: • Level 1 — Quoted prices in active markets for identical assets or liabilities. • Level 2 — Observable inputs other than quoted prices included in Level 1, such as quoted prices for markets that are not active, or other inputs that are observable or can be corroborated by observable market data. • Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs. Financial instruments consist of cash and cash equivalents, accounts receivable, accounts payable, debt instruments and certain warrants. As of December 31, 2019 and 2018, the Company has not elected the fair value option for any financial assets and liabilities for which such an election would have been permitted, and the only outstanding financial assets and liabilities recorded at fair value on a recurring basis were the wholly-funded warrants reported as a financial instrument obligation. The following is a summary of the carrying amounts and estimated fair values of our financial instruments at December 31, 2019 and 2018: December 31, 2019 December 31, 2018 Reported Fair Value Reported Fair Value (in thousands) Financial Assets and Liabilities: Cash and cash equivalents $ 8,249 $ 8,249 $ 7,078 $ 7,078 Revolving credit facility $ 15,655 $ 15,655 $ 37,385 $ 37,385 Financial instrument obligation $ — $ — $ 7,848 $ 7,848 Contingent consideration liabilities $ 1,121 $ 1,121 $ — $ — The liability-classified warrants reported as a financial instrument obligation were classified within Level 3 because the Company used a Black-Scholes pricing model to estimate the fair value based on inputs that were not observable in any market.

Allowance for Sales Returns

Allowance for Sales Returns	12 Months Ended
Allowance for Sales Returns	Dec. 31, 2019
Allowance For Sales Returns [Abstract]
Allowance for Sales Returns	Note The following table provides the changes in the Company’s sales return reserve, which is classified as a reduction of accounts receivable: Year ended December 31, 2019 2018 2017 in thousands Balance, beginning of period $ 9,212 $ 5,533 $ 4,591 Reserve accrual 16,866 21,340 10,457 Recoveries and deductions, net (17,263 ) (17,661 ) (9,515 ) Balance, end of period $ 8,815 $ 9,212 $ 5,533

Composition of Certain Financia

Composition of Certain Financial Statement Items	12 Months Ended
Composition of Certain Financial Statement Items	Dec. 31, 2019
Condensed Consolidated Balance Sheet Components [Abstract]
Composition of Certain Financial Statement Items	Note Inventories Inventories consist of the following: December 31, 2019 December 31, 2018 (in thousands) Raw materials $ 1,288 $ 1,410 Finished goods 44,423 48,062 Total inventories $ 45,711 $ 49,472 Property and Equipment, net Property and equipment, net consists of the following: December 31, 2019 December 31, 2018 (in thousands) Machinery and equipment $ 1,783 $ 1,616 Software and software development 439 306 Furniture and fixtures 601 535 Tooling 5,340 3,925 Leasehold improvements 1,326 1,325 Demonstration units and convention booths 12,051 11,659 Total property and equipment, gross 21,540 19,366 Less: accumulated depreciation and amortization (17,578 ) (13,510 ) Total property and equipment, net $ 3,962 $ 5,856 Depreciation and amortization expense on property and equipment for the years ended December 31, 2019, 2018 and 2017 was $4.6 million, $4.0 million and $4.1 million, respectively. Other Current Liabilities Other current liabilities consist of the following: December 31, 2019 December 31, 2018 (in thousands) Accrued customer fees $ 3,147 $ 570 Accrued royalty 3,880 4,069 Accrued employee expenses 3,674 4,570 Accrued marketing 3,695 1,692 Foreign tax liability 2,504 1,311 Accrued expenses 9,522 6,276 Total other current liabilities $ 26,422 $ 18,488 Other non-operating expense (income), net Other non-operating expense (income), net consists of the following: Year Ended December 31, 2019 2018 2017 (in thousands) Unrealized loss (gain) on financial instrument obligation $ (1,601 ) $ 5,291 $ — Change in fair value of contingent consideration (471 ) — — Loss on debt extinguishment — 1,572 — Other non-operating expense (income) (137 ) 916 (463 ) Total other non-operating expense (income),net $ (2,209 ) $ 7,779 $ (463 )

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
Goodwill and Other Intangible Assets	Dec. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Note Acquired Intangible Assets Acquired identifiable intangible assets, and related accumulated amortization, as of December 31, 2019 and 2018 consist of: December 31, 2019 Gross Carrying Value Accumulated Amortization Net Book Value (in thousands) Customer relationships $ 7,915 $ 5,024 $ 2,891 Tradenames 2,686 157 2,529 Developed technology 784 65 719 Foreign currency (1,004 ) (876 ) (128 ) Total Intangible Assets $ 10,381 $ 4,370 $ 6,011 December 31, 2018 Gross Carrying Value Accumulated Amortization Net Book Value (in thousands) Customer relationships $ 5,796 $ 4,539 $ 1,257 Foreign currency (1,158 ) (937 ) (221 ) Total Intangible Assets $ 4,638 $ 3,602 $ 1,036 In connection with the October 2012 acquisition of TB Europe, the acquired intangible asset related to customer relationships is being amortized over an estimated useful life of thirteen years Amortization expense related to definite lived intangible assets was $0.6 million, $0.3 million and $0.3 million for the years ended December 31, 2019, 2018 and 2017, respectively. As of December 31, 2019, estimated annual amortization expense related to definite lived intangible assets in future periods is as follows: (in thousands) 2020 $ 942 2021 901 2022 866 2023 837 2024 813 Thereafter 1,780 Total $ 6,139 Changes in the carrying values of goodwill for twelve months ended December 31, 2019 are as follows: (in thousands) Balance as of January 1, 2019 $ — ROCCAT Acquisition 8,515 Balance as of December 31, 2019 $ 8,515

Credit Facilities and Long-Term

Credit Facilities and Long-Term Debt	12 Months Ended
Credit Facilities and Long-Term Debt	Dec. 31, 2019
Debt Disclosure [Abstract]
Credit Facility and Long-Term Debt	Note December 31, 2019 December 31, 2018 (in thousands) Revolving credit facility, maturing March 2024 $ 15,655 $ 37,385 Total interest expense, inclusive of amortization of deferred financing costs, on long-term debt obligations was $0.9 million, $4.3 million and $5.8 million for the years ended December 31, 2019, 2018 and 2017, respectively. Amortization of deferred financing costs was $0.2 million, $1.1 million and $1.6 million for the years ended December 31, 2019, 2018 and 2017, respectively. In connection with the Company’s amendment and restatement of its Credit Facility (as noted below), the Company incurred $0.6 million of financing costs that have been deferred, added to the then remaining unamortized financing costs and will be recognized over the term of the respective agreement. Revolving Credit Facility On December 17, 2018, Turtle Beach and certain of its subsidiaries entered into an amended and restated loan, guaranty and security agreement (“Credit Facility”) with Bank of America, N.A. (“Bank of America”), as Agent, Sole Lead Arranger and Sole Bookrunner, which replaced the then existing asset-based revolving loan agreement. The Credit Facility, which expires on March 5, 2024, provides for a line of credit of up to $80 million inclusive of a sub-facility limit of $12 million for TB Europe, a wholly-owned subsidiary of Turtle Beach. In addition, the Credit Facility provides for a $40 million accordion feature and the ability to increase the borrowing base with a FILO Loan of up to $6.8 million. On May 31, 2019, the Company amended the Credit Facility to provide for, amongst other items, (i) the addition of TBC Holding Company LLC, a wholly-owned subsidiary of VTB, as an obligor and (ii) the ability to make investments in TB Germany GmbH, a wholly-owned subsidiary of TB Europe, of up to $4 million in connection with the acquisition of ROCCAT and up to an additional $4 million annually. The maximum credit availability for loans and letters of credit under the Credit Facility is governed by a borrowing base determined by the application of specified percentages to certain eligible assets, primarily eligible trade accounts receivable and inventories, and is subject to discretionary reserves and revaluation adjustments. The Credit Facility may be used for working capital, the issuance of bank guarantees, letters of credit and other corporate purposes. Amounts outstanding under the Credit Facility bear interest at a rate equal to either a rate published by Bank of America or the LIBOR rate, plus in each case, an applicable margin, which is between 0.50% to 1.25% for base rate loans, 1.25% to 2.00% for U.S. LIBOR loans and U.K. loans and 2.00% and 2.75% for the FILO Loan. In addition, Turtle Beach is required to pay a commitment fee on the unused revolving loan commitment at a rate ranging from 0.25% to 0.50%, and letter of credit fees and agent fees. As of December 31, 2019, interest rates for outstanding borrowings were 5.25% for base rate loans and 3.13% for LIBOR rate loans. The Company is subject to quarterly financial covenant testing if certain availability thresholds are not met or certain other events occur (as defined in the Credit Facility). The Credit Facility requires the Company and its restricted subsidiaries to maintain a fixed charge coverage ratio of at least 1.00 to 1.00 as of the last day of each fiscal quarter. The Credit Facility also contains affirmative and negative covenants that, subject to certain exceptions, limit the Company's ability to take certain actions, including its ability to incur debt, pay dividends and repurchase stock, make certain investments and other payments, enter into certain mergers and consolidations, engage in sale leaseback transactions and transactions with affiliates and encumber and dispose of assets. Obligations under the Credit Facility are secured by a security interest and lien upon substantially all of the Company's assets. As of December 31, 2019, the Company was in compliance with all the financial covenants under the Credit Facility, as amended, and excess borrowing availability was approximately $32.2 million.

Income Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Note The provision (benefit) for income taxes consists of the following: Year Ended 2019 2018 2017 (in thousands) Federal: Current $ 230 $ 423 $ 227 Deferred (5,910 ) — — Total Federal (5,680 ) 423 227 State and Local: Current 114 300 185 Deferred (1,529 ) — — Total State and Local (1,415 ) 300 185 Foreign Current 897 378 — Deferred (39 ) 636 181 Total Foreign 858 1,014 181 Total $ (6,237 ) $ 1,737 $ 593 The reconciliation between the provision (benefit) for income taxes and the expected provision (benefit) for income taxes at the U.S. federal statutory rate is as follows: Year Ended December 31, 2019 2018 2017 (in thousands) U.S. Operations $ 8,030 $ 37,466 $ (3,722 ) Foreign Operations 3,677 3,461 1,067 Income (loss) before income taxes 11,707 40,927 (2,655 ) Federal statutory rate 21 % 21 % 35 % Provision for income taxes at federal statutory rate 2,458 8,595 (929 ) State taxes, net of federal benefit 989 594 157 Foreign tax rate differential (33 ) (50 ) (92 ) Change in valuation allowance (10,112 ) (8,497 ) (10,043 ) Change in tax rate — — 10,526 Interest on Series B redeemable preferred stock — 105 504 Unrealized loss (gain) on financial instrument obligation (336 ) 1,111 — Subpart F Income — — 502 Excess tax benefit recognized (44 ) (1,175 ) (782 ) Foreign tax credit — (358 ) — Global intangible low taxed income 637 456 — Prior year adjustment 429 — 241 Change in unrecognized tax benefits (715 ) 634 (27 ) Nondeductible compensation 402 136 — Other 88 186 536 Provision (benefit) for income taxes $ (6,237 ) $ 1,737 $ 593 The income tax provision (benefit) reflects the current and deferred tax consequences of events that have been recognized in the Company’s Consolidated Financial Statements or tax returns. The Tax Cuts and Jobs Act of 2017 (the “Tax Act”) made broad changes to the U.S. tax code. The changes include, but are not limited to, reducing the U.S. federal corporate tax rate from 35% to 21%, introducing bonus depreciation that will allow for full expensing of qualified property, eliminating the corporate alternative minimum tax (“AMT”) and changing how existing AMT credits can be realized. Consequently, we have re-measured our deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future, which is generally 21%. The Tax Act also requires a deemed repatriation of foreign earnings and profits. As such, the Company reported a deemed repatriation of foreign earnings totaling $0.5 million as of December 31, 2017 related to its European subsidiary. The Company considers the earnings of certain non-U.S. subsidiaries to be indefinitely reinvested outside the United States and the current plans do not demonstrate a need to repatriate them to fund our U.S. operations. The tax effects of significant items comprising the Company’s deferred tax assets/(liabilities) are as follows: December 31, 2019 December 31, 2018 (in thousands) Allowance for doubtful accounts $ 34 $ 39 Inventories 720 758 Employee benefits 2,048 2,304 Net operating loss 3,272 5,870 Sales reserves 1,644 1,920 Unrecognized tax benefits 387 521 Depreciation and amortization 182 (512 ) Intangible assets (140 ) (176 ) Other 32 94 8,179 10,818 Valuation allowance (893 ) (11,005 ) Net deferred tax assets (liabilities) $ 7,286 $ (187 ) At December 31, 2019, the Company has $7.0 million of federal net operating loss carryforwards and $20.8 million of state net operating loss carryforwards, which will begin to expire in 2029. In October 2018, as a result of certain trading activity in the Company's common stock, the change of ownership provisions of Internal Revenue Code Section 382 (“Section 382”) were triggered. Based on the Section 382 limitation, the Company was not able to utilize its net operating losses to fully offset its taxable income in 2018. The Company believes, based on the estimated Section 382 limitation and the net operating loss carryforward period, that the pre-ownership change net operating losses will be fully utilized in future years if the Company generates sufficient taxable income. The realization of deferred tax assets depends on the generation of future taxable income during the periods in which those temporary differences are deductible. During 2015, as a result of cumulative losses in prior years primarily due to incremental costs associated with the console transition, acquisition costs and initial investments in the HyperSound business, the Company concluded that a full valuation allowance was required on its net domestic deferred tax assets. During the fourth quarter of 2019, the Company concluded that it was more likely than not that the deferred tax assets would be realized. This conclusion was based on the recent profitability in 2019 and 2018, including the previous winddown of a business that was the cause of significant losses in previous years. For the year ended December 31, 2019, the Company reported a change in the valuation allowance for deferred tax assets of $10.1 million. The Company continues to maintain a valuation allowance on certain state net operating losses as it is not more likely than not that the losses in those specific jurisdictions will be realized. A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as follows: December 31, 2019 December 31, 2018 (in thousands) Gross unrecognized tax benefit, beginning of period $ 1,695 $ 1,468 Additions based on tax positions related to the current year 213 227 Settlements related to tax positions in a prior period (376 ) — Decreases based on tax positions in a prior period (293 ) — Gross unrecognized tax benefit, end of period $ 1,239 $ 1,695 The Company recognizes only those tax positions that meet the more-likely-than-not recognition threshold, and establishes tax reserves for uncertain tax positions that do not meet this threshold. The Company has settled uncertain tax positions in certain jurisdictions, which resulted in a decrease in amounts based on tax positions in prior periods of approximately $0.7 million for the year ended December 31, 2019. To the extent the remaining unrecognized tax benefits of approximately $1.2 million at December 31, 2019, are ultimately recognized, such recognition will impact the Company’s effective tax rate in future periods. The Company is currently in discussions with certain additional jurisdictions regarding uncertain tax positions and based on those discussions estimates that the amounts based on tax positions in prior periods will potentially decrease by $0.1 million within the next twelve months. Interest and penalties associated with income tax matters are included in the provision for income taxes. As of December 31, 2019, the Company had uncertain tax positions of $1.9 million, inclusive of $0.7 million of interest and penalties. We are currently under examination by certain state and local taxing jurisdictions. Further, at any given time, multiple tax years may be subject to examination by various taxing authorities. The recorded amounts of income tax are subject to adjustment upon examination, changes in interpretation and changes in judgment utilized in determining estimates. The Company files U.S., state and foreign income tax returns in jurisdictions with various statutes of limitations. Below is a summary of the filing jurisdictions and open tax years: Open Years U.S. Federal 2016 - 2018 California 2015 - 2018 New Jersey 2015 - 2018 New York 2016 - 2018 Pennsylvania 2016 - 2018 Texas 2015 - 2018 United Kingdom 2016 - 2018

Preferred Stock

Preferred Stock	12 Months Ended
Preferred Stock	Dec. 31, 2019
Equity [Abstract]
Preferred Stock	Note Series B Redeemable Preferred Stock In September 2010, VTBH issued 1,000,000 shares of non-voting Series B Redeemable Preferred Stock (“Series B Preferred Stock”) with a fair value of $12.4 million. The Series B Preferred Stock was required to be redeemed on the earlier of September 28, 2030, or the occurrence of a liquidation event at its original issue price of $12.425371 per share plus any accrued but unpaid dividends. Dividends were cumulative and accrued at a rate of 8.0% per annum, compounded quarterly, and payable as and when declared by the Board of Directors. The Series B Preferred Stock did not contain any conversion rights. On February 18, 2015, Dr. John Bonanno (“Dr. Bonanno”), the original holder of the Series B Preferred Stock, filed a complaint in Delaware Chancery Court alleging breach of contract. According to the complaint, the merger between VTBH and Turtle Beach purportedly triggered a contractual obligation for VTBH to redeem Dr. Bonanno’s stock. Dr. Bonanno requested a declaratory judgment stating that he was entitled to damages, including a redemption of his stock valued at $15.1 million (equal to the original issue price of his stock plus accrued dividends) as well as other costs and expenses. On April 23, 2018, the Company facilitated and entered into a series of transactions pursuant to which the Series B Preferred Stock was acquired from Dr. Bonanno by non-affiliate investors and subsequently retired. As part of the transactions, the Company entered into (i) an Exchange Agreement (the “Exchange Agreement”) with such non-affiliate investors pursuant to which the Company agreed to exchange the Series B Preferred Stock for an aggregate of 1,307,143 newly issued shares of the Company’s common stock and wholly-funded warrants exercisable for an aggregate of 550,000 shares of the Company’s common stock and (ii) a Settlement Agreement (the “Settlement Agreement”) with Dr. Bonanno. Pursuant to the Settlement Agreement, Dr. Bonanno agreed to discontinue certain previously disclosed claims and actions against the Company related to the Series B Preferred Stock, as well as to provide a release of the Company with respect to all such claims and any other claims related to Dr. Bonanno’s ownership or disposition of the Series B Preferred Stock. In connection with and as consideration thereof, the Company agreed to pay Dr. Bonanno a cash sum of $1.0 million to settle nonredemption claims in connection with the matter, and to pay an additional $1.25 million if a change of control transaction meeting certain specified requirements is consummated within three years of the date of the Settlement Agreement. Accordingly, on April 26, 2018, all exchanged shares of Series B Preferred Stock were retired, and no shares of Series B Preferred Stock remain outstanding. The redemption value of the Series B Preferred Stock was $19.4 million as of the transaction date, and $18.9 million as of December 31, 2017. The Company assessed the relative fair values of the Series B Preferred Stock retired pursuant to the Exchange Agreement and Settlement Agreement to determine the amount of the total transaction consideration transferred that was allocable to each component. The Company determined the fair value of the Series B Preferred Stock to be greater than the total consideration transferred. In addition, the Company was not able to reliably estimate the fair value of the litigation settlement. Based on these fair value assessments, the Company utilized the residual approach and first allocated proceeds to the Series B Preferred Stock, which resulted in no amount of the consideration being allocated to the litigation settlement. Accordingly, the entire transaction was accounted for as an equity transaction with the difference between the carrying value of the Series B Preferred Stock and the fair value of the consideration transferred included in stockholders’ equity. Under the initial terms of the warrants, the holders had the right to receive, at their option, a cash payment for the remaining unexercised portion of the warrants upon the Company consummating a Fundamental Transaction (as defined in the warrant agreement, and including any merger, consolidation, sale or other reorganization event in which its common stock is converted into or exchanged for securities, cash or other property). If so elected by the warrant holders, the cash payment would have been based on a Black-Scholes pricing model and would have been made upon the consummation of a Fundamental Transaction or during the ensuing 30-day period thereafter. As a result of these terms regarding the possible future cash payment, the Company accounted for the warrants issued in connection with the retirement of the Series B Preferred Stock as a financial instrument obligation that is marked to market each period, with subsequent changes in fair value reported in earnings. The fair value of the warrants upon issuance and at December 31, 2018, was $2.6 million and $7.8 million, respectively. On March 20, 2019, the Company amended the terms of the warrant agreement so that the value of the warrant no longer have to be adjusted to fair value. See Note 11. Stock-Based Compensation for further discussion. For the year ended December 31, 2019 and December 31, 2018, respectively, the company recognized an unrealized gain of $1.6 million and unrealized loss of $5.3 million on the warrants that is included in “Other non-operating expense (income), net” in the Consolidated Statement of Operations. For the year ended December 31, 2019, the Company recognized no interest expense on the Series B Preferred Stock. For the years ended December 31, 2018 and 2017, the Company recognized $0.5 million and $1.4 million, respectively. There were no dividends declared during the years ended December 31, 2019, 2018 and 2017. Registration Rights Agreement In connection with the Exchange Agreement, the Company entered into an agreement (the “Registration Rights Agreement”) with certain non-affiliate investors pursuant to which, among other things, the Company agreed to file a registration statement to register for resale the shares of common stock (i) issued and outstanding as a result of the consummation of the transactions contemplated by the Exchange Agreement and (ii) issuable upon the exercise of the wholly-funded warrants. The Company is required to cause the registration statement to be declared effective as soon as practicable, but in no event later than 90 days after the closing of the transactions contemplated by the Exchange Agreement, which occurred on April 26, 2018. The Company also agreed, among other things, to indemnify the investors under the registration statement from certain liabilities and to pay all fees and expenses incident to the Company’s performance of or compliance with the Registration Rights Agreement.

Net Income (Loss) Per Share

Net Income (Loss) Per Share	12 Months Ended
Net Income (Loss) Per Share	Dec. 31, 2019
Earnings Per Share [Abstract]
Net Income (Loss) Per Share	Note The following table sets forth the computation of basic and diluted net income (loss) per share of common stock attributable to common stockholders: Year Ended December 31, 2019 2018 2017 (in thousands, except per-share data) Net income (loss) $ 17,944 $ 39,190 $ (3,248 ) Unrealized gain on financial instrument obligation (1,601 ) — — Net income (loss) - diluted $ 16,343 $ 39,190 $ (3,248 ) Weighted average common shares outstanding — Basic 14,483 13,512 12,336 Plus incremental shares from assumed conversions: Dilutive effect of restricted stock 19 31 — Dilutive effect of stock options 432 565 — Dilutive effect of warrants 754 181 — Weighted average common shares outstanding — Diluted 15,688 14,289 12,336 Net income (loss) per share: Basic $ 1.24 $ 2.90 $ (0.26 ) Diluted $ 1.04 $ 2.74 $ (0.26 ) Incremental shares from stock options and restricted stock awards are computed by the treasury stock method. The weighted average shares listed below were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive for the periods presented or were otherwise excluded under the treasury stock method. The treasury stock method calculates dilution assuming the exercise of all in-the-money options and vesting of restricted stock, reduced by the repurchase of shares with the proceeds from the assumed exercises, unrecognized compensation expense for outstanding awards and the estimated tax benefit of the assumed exercises. Year Ended December 31, 2019 2018 2017 (in thousands) Stock options 480 86 1,589 Warrants — 377 765 Unvested restricted stock awards 194 107 36 Total 674 570 2,390

Equity and Stock-Based Compensa

Equity and Stock-Based Compensation	12 Months Ended
Equity and Stock-Based Compensation	Dec. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Equity and Stock-Based Compensation	Note Stock Repurchase Activity On April 9, 2019, the Company’s board of directors authorized a stock repurchase program to acquire up to $15.0 million of its common stock. Any repurchases under the program will be made from time to time on the open market at prevailing market prices. During the year ended December 31, 2019 , the Company repurchased 0.3 million shares of its common stock . Stock-Based Compensation On October 30, 2013, the Board of Directors adopted, and on December 27, 2013, the stockholders approved, the 2013 Stock-Based Incentive Compensation Plan (the “2013 Plan”), that became effective upon consummation of the Merger on January 15, 2014 and was subsequently amended at our 2019 Annual Meeting. Our stock-based compensation program is a broad-based program designed to attract and retain employees while also aligning employees’ interests with the interests of our shareholders. In addition, members of our Board of Directors participate in our stock-based compensation program in connection with their service on our board. Stock option awards outstanding under the 2013 Plan are time-based and granted at exercise prices which are equal to the market value of the Company’s common stock on the grant date and expire no later than ten years from the date of grant, but only to the extent they have vested. The options generally vest as specified in the option agreements subject, in some instances, to acceleration in certain circumstances. The restrictions on restricted stock generally lapse over a three-year period from the date of the grant. In the event a participant terminates employment with the Company, any vested stock options and any restricted stock still subject to restrictions are generally forfeited if they are not exercised within 90 days. The following table presents the stock activity and the total number of shares available for grant as of December 31, 2019: (in thousands) Balance at December 31, 2018 1,201 Plan amendment 1,440 Options granted (627 ) Restricted stock granted (292 ) Forfeited/Expired shares added back 55 Balance at December 31, 2019 1,777 Total estimated stock-based compensation expense for employees and non-employees, related to all of the Company's stock-based awards, was comprised as follows: Year ended December 31, 2019 2018 2017 (in thousands) Cost of revenue $ 150 $ 289 $ (66 ) Selling and marketing 691 186 100 Research and development 417 136 232 General and administrative 2,300 1,266 1,164 Total stock-based compensation $ 3,558 $ 1,877 $ 1,430 Forfeitures on option grants are estimated at 10% based on evaluation of historical and expected future turnover for non-executives and 0% for executives. Stock-based compensation expense was recorded net of estimated forfeitures, such that expense was recorded only for those stock-based awards that are expected to vest. The Company reviews this assumption periodically and will adjust it if it is not representative of future forfeiture data and trends within employee types (executive vs. non-executive). In 2017, due to changes in the reporting of stock compensation, the Company’s previously unrecognized excess tax benefit related to the exercise of nonqualified stock options totaling $2.2 million was recognized as a deferred tax asset. The associated tax benefit recognized in the Consolidated Statements of Operations for the fiscal years ended December 31, 2019 and 2018 was approximately $0.1 million and $1.2 million, respectively. Stock Option Activity Options Outstanding Number of Shares Underlying Outstanding Options Weighted- Average Exercise Price Weighted- Average Remaining Contractual Term Aggregate Intrinsic Value (in years) Outstanding at December 31, 2018 1,654,729 $ 6.41 7.36 $ 14,374,572 Granted 626,636 11.45 Exercised (88,927 ) 3.71 Forfeited (49,513 ) 13.57 Outstanding at December 31, 2019 2,142,925 $ 7.83 7.13 $ 6,545,982 Vested and expected to vest at December 31, 2019 2,091,287 $ 7.82 7.09 $ 6,451,094 Exercisable at December 31, 2019 1,063,745 $ 6.54 5.48 $ 3,926,696 Aggregate intrinsic value represents the difference between the estimated fair value of the underlying common stock and the exercise price of outstanding, in-the-money options. The aggregate intrinsic value of options exercises was $0.6 million and $9.0 million for the years ended December 31, 2019 and 2018, respectively. As of December 31, 2019, total unrecognized compensation cost related to non-vested stock options granted to employees was $3.5 million, which is expected to be recognized over a remaining weighted average vesting period of 2.7 years. Determination of Fair Value Option valuation models require the input of highly subjective assumptions, including expected stock price volatility. The Black-Scholes option pricing model was developed for use in estimating the fair value of traded options, which have no vesting restrictions and are fully transferable. The fair value of options granted under the 2013 Plan was estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions: Expected term (in years) 6.1 Risk-free interest rate 1.5% - 2.7% Expected volatility 38.0% - 48.2% Dividend rate 0% Each of these inputs is subjective and generally requires significant judgment to determine. The risk-free rate is based on a zero-coupon U.S. Treasury rate in effect at the time of grant with maturity dates that coincide with the expected life of the options. The expected life of the options is based on a simplified weighted average taking into account the vesting conditions and contractual life of the award. Since the Company has a limited trading history for its common stock, the expected volatility was derived from the historical stock volatilities of several unrelated public companies within the Company’s industry that are considered to be comparable to the Company’s business over a period equivalent to the expected term of the stock option grants. The weighted average grant date fair value of options granted during the three years ended December 31, 2019 was $4.71, $3.33, and $0.29, respectively. The total estimated fair value of employee options vested during the three years ended December 31, 2019 was $1.0 million, $0.7 million and $1.3 million, respectively. Restricted Stock Activity Shares Weighted Average Grant Date Fair Value Per Share Nonvested restricted stock at December 31, 2018 265,636 $ 19.29 Granted 292,423 11.51 Vested (131,594 ) 15.80 Shares forfeited (4,975 ) 12.10 Nonvested restricted stock at December 31, 2019 421,490 $ 15.06 As of December 31, 2019 total unrecognized compensation cost related to the nonvested restricted stock awards granted was $5.5 million, which is expected to be recognized over a remaining weighted average vesting period of 2.6 years. Stock Warrants In connection with certain subordinated notes, the Company issued warrants to purchase an aggregate 0.4 million shares and 0.3 million shares of the Company’s common stock at an exercise price of $10.16 and $8.00 per share, respectively, to SG VTB Holdings, LLC, all of which were settled through cashless exercises during the year ended December 31, 2019. In connection with the retirement of the Series B Preferred Stock in April 2018, the Company issued wholly-funded warrants exercisable for an aggregate of 0.5 million shares of its common stock. Under the terms of the warrants, the holders had the right to receive, at their option, a cash payment for the remaining unexercised portion of the warrants upon the Company consummating a Fundamental Transaction (as defined in the warrant agreement, and including any merger, consolidation, sale or other reorganization event in which its common stock is converted into or exchanged for securities, cash or other property). If so elected by the warrant holders, the cash payment will be based on a Black-Scholes pricing model and will be made upon the consummation of a Fundamental Transaction or during the ensuing 30-day period thereafter. As a result of these terms regarding the possible future cash payment, the Company accounted for the warrants issued in connection with the retirement of the Series B Preferred Stock as a financial instrument obligation that is marked to market each period, with subsequent changes in fair value reported in earnings. On March 30, 2019, the Company and the warrant holders entered into an amendment to the warrant agreement that revises the terms under which warrant holders may exercise their rights under a Fundamental Transaction. As a result of this amendment, the warrants are no longer accounted for as a financial instrument obligation and reported as a liability that is marked to market each period with changes in fair value reported in earnings. The warrants were marked to market through March 30, 2019, the execution date of the amendment, at which time the warrants are accounted for as an equity instrument. The fair value on that date of $6.2 million was reclassified to additional paid-in-capital. For the years ended December 31, 2019 and 2018, the Company recognized an unrealized gain of $1.6 million and unrealized loss of $5.3 million, respectively, on the warrants that is included in “Other non-operating expense (income), net” in the Condensed Consolidated Statement of Operations. Phantom Equity Activity In November 2011, VTBH adopted a 2011 Phantom Equity Appreciation Plan (“the Appreciation Plan”) that covers certain employees, consultants, and directors of VTBH (“Participants”) who are entitled to phantom units, as applicable, pursuant to the provisions of their respective award agreements. The Appreciation Plan is shareholder-approved, which permits the granting of phantom units to Participants of up to 1,500,000 units. These units are not exercisable or convertible into shares of common stock, but give the holder a right to receive a cash bonus equal to the appreciation in value between the exercise price and value of common stock at the time of a change in control event as defined in the plan. As of December 31, 2019 and 2018, 178,586 phantom units at a weighted-average exercise price of $3.72 have been granted and are outstanding. Because these phantom units are not exercisable or convertible into common shares, the share amounts and exercise prices were not subject to the exchange ratio provided by the Merger agreement. As of December 31, 2019, compensation expense related to the Appreciation Plan units remained unrecognized because a change in control of VTB, as defined in the plan, had not occurred and is not anticipated by the Company. In July 2015, the Appreciation Plan was terminated as to new grants, but vested phantom units remain in place.

Segment Information

Segment Information	12 Months Ended
Segment Information	Dec. 31, 2019
Segment Reporting [Abstract]
Segment Information	Note The company operates in a single reportable segment and two reporting unit structure. The entire business is managed by a single management team whose chief operating decision maker is the Chief Executive Officer, who reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance The following table represents total net revenue based on where customers are physically located: Year Ended December 31, 2019 2018 2017 (in thousands) North America $ 166,748 $ 215,601 $ 103,159 United Kingdom 25,671 34,509 21,113 Europe 34,707 30,244 20,277 Other 7,537 7,083 4,586 Total net revenues $ 234,663 $ 287,437 $ 149,135 The following table represents property and equipment, net based on physical location: Year Ended December 31, 2019 2018 (in thousands) United States $ 2,906 $ 5,705 International 1,056 151 Total $ 3,962 $ 5,856

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2019
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note Litigation The Company is subject to various legal proceedings and claims that arise in the ordinary course of its business. Although the amount of any liability that could arise with respect to these actions cannot be determined with certainty, in the Company’s opinion, any such liability will not have a material adverse effect on its consolidated financial position, consolidated results of operations or liquidity. Shareholders Class Action : On August 5, 2013, VTBH and the Company (f/k/a Parametric Sound Corporation) announced that they had entered into the Merger Agreement pursuant to which VTBH would acquire an approximately 80% ownership interest and existing shareholders would maintain an approximately 20% ownership interest in the combined company. Following the announcement, several shareholders filed class action lawsuits in California and Nevada seeking to enjoin the Merger. The plaintiffs in each case alleged that members of the Company’s Board of Directors breached their fiduciary duties to the shareholders by agreeing to a merger that allegedly undervalued the Company. VTBH and the Company were named as defendants in these lawsuits under the theory that they had aided and abetted the Company’s Board of Directors in allegedly violating their fiduciary duties. The plaintiffs in both cases sought a preliminary injunction seeking to enjoin closing of the Merger, which, by agreement, was heard by the Nevada court with the California plaintiffs invited to participate. On December 26, 2013, the court in the Nevada case denied the plaintiffs’ motion for a preliminary injunction. Following the closing of the Merger, the Nevada plaintiffs filed a second amended complaint, which made essentially the same allegations and sought monetary damages as well as an order rescinding the Merger. The California plaintiffs dismissed their action without prejudice, and sought to intervene in the Nevada action, which was granted. Subsequent to the intervention, the plaintiffs filed a third amended complaint, which made essentially the same allegations as prior complaints and sought monetary damages. On June 20, 2014, VTBH and the Company moved to dismiss the action, but that motion was denied on August 28, 2014. On September 14, 2017, a unanimous en banc panel of the Nevada Supreme Court granted defendants’ petition for writ of mandamus and ordered the trial court to dismiss the complaint but provided a limited basis upon which plaintiffs could seek to amend their complaint. Plaintiffs amended their complaint on December 1, 2017 to assert the same claims in a derivative capacity on behalf of the Company, as a well as in a direct capacity, against VTBH, Stripes Group, LLC, SG VTB Holdings, LLC, and the former members of the Company’s Board of Directors. All defendants moved to dismiss this amended complaint on January 2, 2018, and those motions were denied on March 13, 2018. Defendants petitioned the Nevada Supreme Court to reverse this ruling on April 18, 2018. On June 15, 2018, the Nevada Supreme Court denied defendants’ writ petition without prejudice. The district court subsequently entered a pretrial schedule and set trial for November 2019. On January 18, 2019, the district court certified a class of shareholders of the Company as of January 15, 2014. On October 11, 2019, the parties notified the District Court that they had reached a settlement that would resolve the pending action if ultimately approved by the Court. On January 13, 2020, the District Court preliminarily approved the settlement agreement between the plaintiffs and all Defendants. A final approval hearing has been scheduled for May 18, 2020. All pending court dates and deadlines, including the trial date, have been stayed while the parties proceed with the settlement process. Commercial Dispute : On July 20, 2016, Bigben Interactive S.A. (“BigBen”) filed a statement of claim before the Regional Court of Berlin, Germany against VTB, which statement of claim was formally serviced upon VTB on June 28, 2017. The statement of claim alleges that VTB’s termination of a distribution agreement by and between BigBen and VTB breached the terms thereof and was invalid, and that BigBen is entitled to damages amounting to €5.0 million plus accrued interest thereon plus certain additional damages as a result of such invalid termination. VTB filed its statement of defense with the court on September 21, 2017. On January 7, 2019, the Regional Court of Berlin issued its judgment on this dispute, dismissing BigBen’s claim in its entirety. On February 7, 2019, BigBen Interactive S.A. filed an appeal against the judgment of the Regional Court of Berlin on January 7, 2019 (the "Judgment"). On April 15, 2019, Big Ben provided the reasoning for its appeal against the Judgment. On June 21, 2019, VTB replied to the reasoning for the appeal. Upon Big Ben’s application, the Higher Regional Court of Berlin has reviewed the provisions of the Judgment specifically relating to preliminary enforceability of the Judgment in separate proceedings and before the appellate proceedings regarding the main part of the Judgment. On July 9, 2019, the Higher Regional Court of Berlin completely rejected Big Ben’s applications with regard to the suspension of the preliminary enforceability of the Judgment. On November 19, 2019, an oral hearing was held at the Higher Regional Court of Berlin on Big Ben’s appeal against the Judgement on January 7, 2019. A date for the next oral hearing at the Higher Regional Court of Berlin has not yet been scheduled. Employment Litigation: On April 20, 2017, a former employee filed an action in the Superior Court for the County of San Diego, State of California. The complaint alleges claims including wrongful termination, retaliation and various other provisions of the California Labor Code. The complaint seeks unspecified economic and non-economic losses, as well as allegedly unpaid wages, unreimbursed business expenses, statutory penalties, interest, punitive damages and attorneys’ fees. The Company filed a cross-complaint against the former employee on May 25, 2017 for certain activities related to his employment with the Company. Discovery is closed and the case is set for trial on April 6, 2020 in San Diego County Superior Court. The Company will continue to vigorously defend itself in the foregoing matters. However, litigation and investigations are inherently uncertain. Accordingly, the Company cannot predict the outcome of these matters. The Company has not recorded any accrual at December 31, 2019 for contingent losses associated with these matters based on its belief that losses, while possible, are not probable. Further, any possible range of loss cannot be reasonably estimated at this time. The unfavorable resolution of these matters could have a material adverse effect on the Company’s business, results of operations, financial condition, or cash flows. The Company is engaged in other legal actions, not described above, arising in the ordinary course of its business and, while there can be no assurance, believes that the ultimate outcome of these other legal actions will not have a material adverse effect on its business, results of operations, financial condition, or cash flows. Warranties The Company warrants products against certain manufacturing and other defects. These product warranties are provided for specific periods of time depending on the nature of the product. Warranties are generally fulfilled by replacing defective products with new products. The following table provides the changes in our product warranties, which are included in other current liabilities: Year ended December 31, 2019 2018 2017 (in thousands) Warranty, beginning of period $ 668 $ 472 $ 639 Warranty costs accrued 816 864 310 Settlements of warranty claims (742 ) (668 ) (477 ) Warranty, end of period $ 742 $ 668 $ 472 Operating Leases – Right of Use Assets The Company adopted ASU 2016-02, Leases The components of the right-of-use assets and lease liabilities were as follows: Balance Sheet Classification December 31, 2019 (in thousands) Right-of-use assets Other assets $ 1,770 Lease liability obligations, current Other current liabilities $ 595 Lease liability obligations, noncurrent Other liabilities 1,280 Total lease liability obligations $ 1,875 Weighted-average remaining lease term (in years) 3.0 Weighted-average discount rate 3.75 % During the year ended December 31, 2019, the Company recognized approximately $1.0 million of lease costs in operating expenses and approximately $1.7 million of operating cash flows from operating leases. Approximate future minimum lease payments for the Company’s right of use assets over the remaining lease periods as of December 31, 2019 (in thousands) 2020 660 2021 581 2022 227 2023 103 2024 103 Thereafter 293 Total minimum payments 1,967 Less: Imputed interest (92 ) Total $ 1,875

Selected Quarterly Financial Da

Selected Quarterly Financial Data - Unaudited	12 Months Ended
Selected Quarterly Financial Data - Unaudited	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Financial Data - Unaudited	Note Fiscal 2019 Quarter First Second Third Fourth (in thousands, except per share data) Net Revenue $ 44,846 $ 41,330 $ 46,723 $ 101,764 Gross Margin 14,787 13,171 15,043 35,712 Net Income (Loss) 3,055 (2,373 ) (3,124 ) 20,386 Earnings (Loss) Per Share Basic $ 0.21 $ (0.16 ) $ (0.22 ) $ 1.41 Diluted $ 0.19 $ (0.16 ) $ (0.22 ) $ 1.29 Fiscal 2018 Quarter First Second Third Fourth (in thousands, except per share data) Net Revenue $ 40,886 $ 60,805 $ 74,427 $ 111,319 Gross Margin 15,029 20,277 30,502 42,891 Net Income (Loss) 1,962 (2,318 ) 14,932 24,614 Earnings (Loss) Per Share Basic $ 0.16 $ (0.17 ) $ 1.07 $ 1.73 Diluted $ 0.16 $ (0.17 ) $ 0.91 $ 1.33

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
Schedule II - Valuation and Qualifying Accounts	Dec. 31, 2019
Valuation And Qualifying Accounts [Abstract]
Schedule II - Valuation and Qualifying Accounts	Turtle Beach Corporation Years ended December 31, 2019, 2018 and 2017 Description Balance - Begin Additions Deductions / Other Balance - End (in thousands) Year Ended December 31, 2019: Allowance for sales returns $ 9,212 $ 16,866 $ (17,263 ) $ 8,815 Allowance for cash discounts 13,892 18,935 $ (16,848 ) 15,979 Allowance for doubtful accounts 167 6 $ (27 ) 146 $ 24,940 Year Ended December 31, 2018 Allowance for sales returns $ 5,533 $ 21,340 $ (17,661 ) $ 9,212 Allowance for cash discounts 7,108 26,194 $ (19,410 ) 13,892 Allowance for doubtful accounts 63 389 $ (285 ) 167 $ 23,271 Year Ended December 31, 2017: Allowance for sales returns $ 4,591 $ 10,457 $ (9,515 ) $ 5,533 Allowance for cash discounts 7,775 17,967 (18,634 ) 7,108 Allowance for doubtful accounts 136 49 (122 ) 63 $ 12,704

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
Summary of Significant Accounting Policies (Policies)	Dec. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and, in the opinion of management, reflect all adjustments (which include normal recurring adjustments) considered necessary for a fair presentation of the financial position, results of operations, and cash flows for the periods presented. All intercompany accounts and transactions have been eliminated in consolidation. Reverse Split On April 6, 2018, the Company effected a one-for-four reverse stock split of its common stock pursuant to which every four shares of common stock outstanding immediately prior to the reverse split were combined into one share of common stock. As
Use of Estimates	Uses of Estimates The preparation of financial statements in conformity with generally accepted accounting principles requires management to use estimates and assumptions that affect the reported amount of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenue and expenses during the reporting period. The significant estimates and assumptions used by management affect: sales return reserve, allowances for cash discounts, warranty reserve, valuation of inventory, valuation of long-lived assets, goodwill and other intangible assets, depreciation and amortization of long-lived assets, valuation of deferred tax assets, determination of fair value of stock-based awards, stock warrants and share-based compensation. The Company evaluates estimates and assumptions on an ongoing basis using historical experience and other factors and adjusts those estimates and assumptions when facts and circumstances dictate. As future events and their effects cannot be determined with precision, actual results could differ from these estimates, and those differences could be material to the consolidated financial statements.
Revenue Recognition	Revenue Recognition and Sales Return Reserve Net revenue consists primarily of revenue from the sale of gaming headsets and accessories to wholesalers, retailers and to a lesser extent, on-line customers. These products function on a standalone basis (in connection with a readily available gaming console, personal computer or stereo) and are not sold with additional services or rights to future goods or services. Revenue is recorded for a contract through the following steps: (i) identifying the contract with the customer; (ii) identifying the performance obligations in the contract; (iii) determining the transaction price; (iv) allocating the transaction price to the performance obligations; and (v) recognizing revenue when or as each performance obligation is satisfied. Each contract at inception is evaluated to determine whether the contract should be accounted for as having one or more performance obligations. The Company's business activities were determined to be a single performance obligation with revenue recognized when obligations under the terms of a contract with its customer are satisfied; generally this occurs at a point in time when the risk and title to the product transfers to the customer. The Company's standard terms of delivery are included in its contracts of sale, order confirmation documents, and invoices. The Company excludes sales taxes collected from customers from “Net Revenue” in its Consolidated Statements of Operations. Certain customers may receive cash-based incentives (including cash discounts, quantity rebates, and price concessions), which are accounted for as variable consideration. Provisions for sales returns are recognized in the period the sale is recorded based upon the Company's prior experience and current trends. These revenue reductions are established by the Company based upon management’s best estimates at the time of sale following the historical trend, adjusted to reflect known changes in the factors that impact such reserves and allowances, and the terms of agreements with customers. As of December 31, 2019, the Company had an allowance for cash discounts of $16.0 million and an allowance for sales returns of $8.8 million, and does not expect to have significant changes in its estimates for variable considerations.
Sales Return Reserve	Certain customers may receive cash-based incentives (including cash discounts, quantity rebates, and price concessions), which are accounted for as variable consideration. Provisions for sales returns are recognized in the period the sale is recorded based upon the Company's prior experience and current trends. These revenue reductions are established by the Company based upon management’s best estimates at the time of sale following the historical trend, adjusted to reflect known changes in the factors that impact such reserves and allowances, and the terms of agreements with customers. As of December 31, 2019, the Company had an allowance for cash discounts of $16.0 million and an allowance for sales returns of $8.8 million, and does not expect to have significant changes in its estimates for variable considerations.
Cost of Revenue and Operating Expenses	Cost of Revenue and Operating Expenses The following table illustrates the primary costs classified in each major expense category: Cost of Revenue Operating Expenses Cost to manufacture products; Payroll, bonus and benefit costs; Freight costs associated with moving product from suppliers to distribution centers and to customers; Costs incurred in the research and development of new products and enhancements to existing products; Costs associated with the movement of merchandise through customs; Depreciation related to demonstration units; Costs associated with material handling and warehousing; Legal, finance, information systems and other corporate overhead costs; Global supply chain personnel costs; Sales commissions, advertising and marketing costs. Product royalty costs.
Product Warranty Obligations	Product Warranty Obligations The Company provides for product warranties in accordance with the contract terms given to various customers by accruing estimated warranty costs at the time of revenue recognition. Warranties are generally fulfilled by replacing defective products with new products.
Marketing Costs	Marketing Costs Costs associated with the production of advertising, such as print and other costs, as well as costs associated with communicating advertising that has been produced, such as magazine ads, are expensed when the advertising first appears in public. Advertising costs were approximately $7.5 million, $6.7 million and $4.2 million for the years ended December 31, 2019, 2018 and 2017, respectively.
Cooperative Advertising	The Company also incurs co-operative advertising costs that represent reimbursements to customers for shared marketing expenses for sale of its products. These reimbursements are recorded as reductions of net revenue based on a percentage of sales for all period presented. Co-operative advertising reimbursements were approximately $5.7 million, $5.4 million and $3.1 million for the years ended December 31, 2019, 2018 and 2017, respectively.
Deferred Financing Costs	Deferred Financing Costs Deferred financing costs represent costs incurred in conjunction with our debt financing activities and are capitalized and amortized over the life of the related financing arrangements. If the debt is retired early, the related unamortized deferred financing costs are written off in the period the debt is retired as part of the net carrying value of the debt, and any gains or losses are recorded in the statement of operations under the caption “Other non-operating expense (income), net.”
Stock-Based Compensation	Stock-Based Compensation Compensation costs related to stock options and restricted stock grants are calculated based on the fair value of the stock-based awards on the date of grant, net of estimated forfeitures. The grant date fair value of awards is determined using the Black-Scholes option-pricing model and the related stock-based compensation is recognized on a straight-line basis over the period in which an employee is required to provide service in exchange for the award, which is generally four years. The Company estimates its forfeiture rate based on an analysis of actual forfeitures and will continue to evaluate the adequacy of the forfeiture rate based on actual forfeiture experience, analysis of employee turnover behavior, and other factors. The impact from any forfeiture rate adjustment would be recognized in the period of adjustment and if the actual number of future forfeitures differs from estimates, the Company might be required to record adjustments to stock-based compensation expense. For stock-based awards issued to non-employees, including consultants, compensation expense is based on the fair value of the
Exit and Disposal Costs	Exit and Disposal Costs Management-approved restructuring activities are periodically initiated to achieve cost savings through reduced operational redundancies and to position the Company strategically in the market in response to prevailing economic conditions and associated customer demand. Costs associated with restructuring actions can include severance, infrastructure charges to vacate facilities or consolidate operations, contract termination costs and other related charges. For involuntary separation plans, a liability is recognized when it is probable and reasonably estimable. For one-time termination benefits, such as additional severance pay or benefit payouts, and other exit costs, such as lease termination costs, the liability is measured and recognized initially at fair value in the period in which the liability is incurred, with subsequent changes to the liability recognized as adjustments in the period of change.
Net Earnings (Loss) per Common Share	Net Earnings (Loss) per Common Share Basic earnings (loss) per share is calculated by dividing net income (loss) associated with common stockholders by the weighted average number of common shares outstanding during the period. Diluted earnings (loss) per share assumes the issuance of additional shares of common stock by the Company upon exercise of all outstanding stock options, stock warrants and contingently issuable securities if the effect is dilutive, in accordance with the treasury stock method.
Cash Equivalents	Cash Equivalents Cash and short-term highly liquid investments with original maturity dates of three months or less at time of purchase and no redemption restrictions are considered cash and cash equivalents.
Inventories	Inventories Inventories consist primarily of finished goods and related component parts, and are stated at the lower of weighted average cost or market value (estimated net realizable value) using the first in, first out (“FIFO”) method. The Company maintains an inventory allowance for returned goods, slow-moving and unused inventories based on the historical trend and estimates. Inventory write-downs, once established, are not reversed as they establish a new cost basis for the inventory. Inventory write-downs are included as a component of cost of revenues in the accompanying consolidated statements of operations.
Property and Equipment, net	Property and Equipment, net Property and equipment are presented at cost less accumulated depreciation and amortization. Repairs and maintenance expenditures are expensed as incurred. Depreciation and amortization are computed on a straight-line basis over the following estimated useful lives: Estimated Life Machinery and equipment 3 years Software and software development 2-3 years Furniture and fixtures 5 years Tooling 2 years Leasehold improvements Term of lease or economic life of asset, if shorter Demonstration units and convention booths 2 years
Valuation of Long-Lived and Intangible Assets and Goodwill	Valuation of Long-Lived and Intangible Assets and Goodwill At acquisition, we estimate and record the fair value of purchased intangible assets, which primarily consists of in-process research and development, customer relationships, trademarks and trade names, and patents. The fair values of these intangible assets are estimated based on the Company’s assessment. Goodwill is the excess of the purchase price over the fair value of identifiable net assets acquired in business combinations. Goodwill and certain other intangible assets having indefinite lives are not amortized to earnings, but instead are subject to periodic testing for impairment. Intangible assets determined to have definite lives are amortized over their remaining useful lives. Long-lived and intangible assets are assessed for potential impairment whenever events or changes in circumstances indicate that full recoverability of net asset balances through future cash flows is in question. Goodwill and indefinite-lived intangible assets are assessed at least annually, but also whenever events or changes in circumstances indicate the carrying values may not be recoverable. Factors that could trigger an impairment review include (a) significant underperformance relative to historical or projected future operating results; (b) significant changes in the manner of use of the acquired assets or the strategy for the Company’s overall business; (c) significant negative industry or economic trends; (d) significant decline in the Company’s stock price for a sustained period; and (e) a decline in the Company’s market capitalization below net book value. Assessment for possible impairment is based on the Company’s ability to recover the carrying value of the long-lived asset from the expected future pre-tax cash flows. The expected future pre-tax cash flows are estimated based on historical experience, internal knowledge and market data. Estimates of future cash flows require the Company to make assumptions and to apply judgment, including forecasting future sales and expenses and estimating the useful lives of assets. If the expected future cash flows related to the long-lived assets are less than the assets’ carrying value, an impairment charge is recognized for the difference between estimated fair value and carrying value. When performing the Company’s evaluation of goodwill for impairment, if it concludes qualitatively that it is not more likely than not that the fair value of the reporting unit is less than its carrying amount, then the two-step impairment test is not required. If the Company is unable to reach this conclusion, then we would perform the two-step impairment test. Initially, the fair value of the reporting unit is compared to its carrying amount. To the extent the carrying amount of a reporting unit exceeds the fair value of the reporting unit; we are required to perform a second step, as this is an indication that the reporting unit goodwill may be impaired. In this step, the Company compares the implied fair value of the reporting unit goodwill with the carrying amount of the reporting unit goodwill and recognize a charge for impairment to the extent the carrying value exceeds the implied fair value. The implied fair value of goodwill is determined by allocating the fair value of the reporting unit to all of the assets (recognized and unrecognized) and liabilities of the reporting unit in a manner similar to a purchase price allocation. The residual fair value after this allocation is the implied fair value of the reporting unit goodwill. In addition, identifiable intangible assets having indefinite lives are reviewed for impairment on an annual basis using a methodology consistent with that used to evaluate goodwill. There are inherent assumptions and estimates used in developing future cash flows requiring management judgment including projecting revenues, interest rates and the cost of capital. Many of the factors used in assessing fair value are outside the Company’s control and it is reasonably likely that assumptions and estimates will change in future periods. These changes can result in future impairments. In the event the Company’s planning assumptions were modified resulting in impairment to our assets, the associated expense would be included in the Consolidated Statements of Operations, which could materially impact its business, financial condition and results of operations. In connection with the ROCCAT acquisition, the Company performed a valuation of the acquired goodwill and intangible assets and recorded $8.5 million of goodwill based on the fair values of the assets acquired and liabilities assumed. The Company conducted its annual impairment assessment on December 31, 2019 taking a qualitative evaluation approach to determine if there were any adverse market factors or changes in circumstances that would indicate that the carrying value of goodwill as determined in connection with the current year acquisition may not be recoverable. The Company’s qualitative assessment included an analysis of business changes, economic outlook, financial trends and forecasts, and events or circumstances that could unfavorably impact the key assumptions. Based on this review, management determined that no events or changes in circumstances indicated that the carrying value may not be recoverable and further consideration of potential goodwill impairment was not considered necessary.
Income Taxes	Income Taxes The Company accounts for income taxes in accordance with the asset and liability method. Under the asset and liability method, deferred tax assets and liabilities are recognized based on the differences between the financial statement carrying value of existing assets and liabilities and their respective tax bases based on enacted tax laws and statutory tax rates applicable to the periods in which the Company expects the temporary differences to reverse. The Company had elected to record a “deferred charge” for basis differences relating to intra-entity profits as recognition as a deferred tax asset is prohibited. A valuation allowance is established for deferred tax assets when management anticipates that it is more likely than not that all, or a portion, of these assets would not be realized. In determining whether a valuation allowance is warranted, all positive and negative evidence and all sources of taxable income such as prior earnings history, expected future earnings, carryback and carryforward periods and tax strategies are considered to estimate if sufficient future taxable income will be generated to realize the deferred tax asset. The assessment of the adequacy of a valuation allowance is based on estimates of taxable income by jurisdiction and the period over which deferred tax assets will be recoverable. In the event that actual results differ from these estimates, or these estimates are adjusted in future periods for current trends or expected changes in assumptions, the Company may need to modify the level of valuation allowance which could materially impact our business, financial condition and results of operations. The tax effects of uncertain tax positions taken or expected to be taken in income tax returns are recognized only if they are “more likely-than-not” to be sustained on examination by the taxing authorities based on the technical merits as of the reporting date. The tax benefits recognized in the financial statements from such positions are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement. The Company recognizes estimated accrued interest and penalties related to uncertain tax positions in income tax expense. The Company and its domestic subsidiaries file a consolidated federal income tax return, while the Company’s foreign subsidiary files in its respective local jurisdictions.
Fair Value of Financial Instruments	Fair Value of Financial Instruments The Company determines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company uses a hierarchical structure to prioritize the inputs used to measure fair value into three broad levels. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1), then to quoted market prices for similar assets or liabilities in active or inactive markets (Level 2) and gives the lowest priority to unobservable inputs (Level 3). Financial instruments consist of cash and cash equivalents, accounts receivable, accounts payable, revolving line of credit, long-term debt and warrants reported as a financial instrument obligation. Cash equivalents are stated at amortized cost, which approximated fair value as of the consolidated balance sheet dates due to the short period of time to maturity; and accounts receivable and accounts payable are stated at their carrying value, which approximates fair value due to the short time to the expected receipt or payment. The revolving line of credit and long-term debt are stated at the carrying value as the stated interest rate approximates market rates currently available to the Company, which are considered Level 2 inputs. The wholly-funded warrants are stated at their fair value based on a Black-Scholes pricing model. The Company did not have any non-financial assets or non-financial liabilities recognized at fair value on a recurring basis at December 31, 2019 and 2018.
Foreign Currency Translation	Foreign Currency Translation Balance sheet accounts of the Company’s foreign subsidiaries are translated at the exchange rate in effect at the end of each period. Statement of operations accounts are translated using the weighted average of the prevailing exchange rates during each period. Gains or losses resulting from foreign currency transactions are included in the Company’s Consolidated Statements of Operations under the caption “Other non-operating expense (income), net” whereas translation adjustments are reflected in the Consolidated Statements of Comprehensive Income (Loss) under the caption “Foreign currency translation adjustment.”
Concentration of Credit Risk	Concentration of Credit Risk Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of investments in cash, cash equivalents and accounts receivables. The Company is exposed to credit risk and liquidity risk in the event of default by the financial institutions or issuers of investments in excess of FDIC insured limits. The Company performs periodic evaluations of the relative credit standing of these financial institutions and limits the amount of credit exposure with any institution. Accounts receivable are unsecured and represent amounts due based on contractual obligations of customers. The Company’s three largest individual customers accounted for approximately 42% of its gross sales in the aggregate for the year ended December 31, 2019, or individually 11%, 20% and 11%, compared to 13%, 19% and 11% in 2018 and 16%, 14% and 13% in 2017. In addition, these three customers accounted for 33%, 29% and 9% of accounts receivable as of December 31, 2019 and 30%, 29% and 18% as of December 31, 2018. Concentrations of credit risk with respect to accounts receivable are mitigated by performing ongoing credit evaluations of customers to assess the probability of collection based on a number of factors, including past transaction experience with the customer, evaluation of their credit history, limiting the credit extended, and review of the invoicing terms of the contract. In addition, the Company has credit insurance in place through a third-party insurer against defaults by certain other domestic and international customers, subject to policy limits. The Company generally does not require customers to provide collateral to support accounts receivable. The Company has recorded an allowance for doubtful accounts for those receivables that were determined not to be collectible. Foreign cash balances at December 31, 2019 and 2018 were $5.9 million and $5.2 million, respectively.
Segment Information	Segment Information The company operates in a single reportable segment and two reporting unit structure. The entire business is managed by a single management team whose chief operating decision maker is the Chief Executive Officer, who reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance
Recent Accounting Pronouncements	Recent Accounting Pronouncements In February 2016, the FASB issued ASU No. 2016-02, Leases $3.3 million. ASU No. 2017-04 Intangibles-Goodwill and Other: Simplifying the Test for Goodwill Impairment In June 2018, the FASB issued ASU 2018-07, Improvements to Non-employee Share-Based Payment Accounting Topic 718, Compensation—Stock Compensation In August 2018, the FASB issued ASU No. 2018-13, Changes to the Disclosure Requirements for Fair Value Measurement In December 2019, the FASB issued ASU No. 2019-12, Simplifying the Accounting for Income Taxes, ASC Topic 740

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
Summary of Significant Accounting Policies (Tables)	Dec. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Schedule of Property and Equipment	Property and equipment are presented at cost less accumulated depreciation and amortization. Repairs and maintenance expenditures are expensed as incurred. Depreciation and amortization are computed on a straight-line basis over the following estimated useful lives: Estimated Life Machinery and equipment 3 years Software and software development 2-3 years Furniture and fixtures 5 years Tooling 2 years Leasehold improvements Term of lease or economic life of asset, if shorter Demonstration units and convention booths 2 years Property and equipment, net consists of the following: December 31, 2019 December 31, 2018 (in thousands) Machinery and equipment $ 1,783 $ 1,616 Software and software development 439 306 Furniture and fixtures 601 535 Tooling 5,340 3,925 Leasehold improvements 1,326 1,325 Demonstration units and convention booths 12,051 11,659 Total property and equipment, gross 21,540 19,366 Less: accumulated depreciation and amortization (17,578 ) (13,510 ) Total property and equipment, net $ 3,962 $ 5,856

Acquisitions (Tables)

Acquisitions (Tables)	12 Months Ended
Acquisitions (Tables)	Dec. 31, 2019
Business Combinations [Abstract]
Summary of Preliminary ROCCAT Purchase Price Allocation	The preliminary ROCCAT purchase price allocation as of May 31, 2019 is shown in the following table: (In thousands) Amount Receivables $ 1,257 Inventories 6,986 Property and equipment 1,110 Intangible assets 5,589 Other long-term assets 461 Accounts payable (5,510 ) Accrued and other current liabilities (3,821 ) Contingent consideration (1,592 ) Other non-current liabilities (328 ) Total identifiable net assets 4,152 Goodwill 8,515 Total consideration $ 12,667
Summary of Underlying Intangible Assets Related to ROCCAT	The following table summarizes key information underlying intangible assets related to the ROCCAT acquisition: (In thousands) Life Amount Customer relationships 7 Years $ 2,119 Tradenames 10 Years 2,686 Developed technology 7 Years 784 Total $ 5,589

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	12 Months Ended
Fair Value Measurement (Tables)	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments	The following is a summary of the carrying amounts and estimated fair values of our financial instruments at December 31, 2019 and 2018: December 31, 2019 December 31, 2018 Reported Fair Value Reported Fair Value (in thousands) Financial Assets and Liabilities: Cash and cash equivalents $ 8,249 $ 8,249 $ 7,078 $ 7,078 Revolving credit facility $ 15,655 $ 15,655 $ 37,385 $ 37,385 Financial instrument obligation $ — $ — $ 7,848 $ 7,848 Contingent consideration liabilities $ 1,121 $ 1,121 $ — $ —

Allowance for Sales Returns (Ta

Allowance for Sales Returns (Tables)	12 Months Ended
Allowance for Sales Returns (Tables)	Dec. 31, 2019
Allowance For Sales Returns [Abstract]
Schedule of Allowances for Sales Returns	The following table provides the changes in the Company’s sales return reserve, which is classified as a reduction of accounts receivable: Year ended December 31, 2019 2018 2017 in thousands Balance, beginning of period $ 9,212 $ 5,533 $ 4,591 Reserve accrual 16,866 21,340 10,457 Recoveries and deductions, net (17,263 ) (17,661 ) (9,515 ) Balance, end of period $ 8,815 $ 9,212 $ 5,533

Composition of Certain Financ_2

Composition of Certain Financial Statement Items (Tables)	12 Months Ended
Composition of Certain Financial Statement Items (Tables)	Dec. 31, 2019
Condensed Consolidated Balance Sheet Components [Abstract]
Schedule of Inventory	Inventories consist of the following: December 31, 2019 December 31, 2018 (in thousands) Raw materials $ 1,288 $ 1,410 Finished goods 44,423 48,062 Total inventories $ 45,711 $ 49,472
Schedule of Property and Equipment	Property and equipment are presented at cost less accumulated depreciation and amortization. Repairs and maintenance expenditures are expensed as incurred. Depreciation and amortization are computed on a straight-line basis over the following estimated useful lives: Estimated Life Machinery and equipment 3 years Software and software development 2-3 years Furniture and fixtures 5 years Tooling 2 years Leasehold improvements Term of lease or economic life of asset, if shorter Demonstration units and convention booths 2 years Property and equipment, net consists of the following: December 31, 2019 December 31, 2018 (in thousands) Machinery and equipment $ 1,783 $ 1,616 Software and software development 439 306 Furniture and fixtures 601 535 Tooling 5,340 3,925 Leasehold improvements 1,326 1,325 Demonstration units and convention booths 12,051 11,659 Total property and equipment, gross 21,540 19,366 Less: accumulated depreciation and amortization (17,578 ) (13,510 ) Total property and equipment, net $ 3,962 $ 5,856
Other Current Liabilities	Other current liabilities consist of the following: December 31, 2019 December 31, 2018 (in thousands) Accrued customer fees $ 3,147 $ 570 Accrued royalty 3,880 4,069 Accrued employee expenses 3,674 4,570 Accrued marketing 3,695 1,692 Foreign tax liability 2,504 1,311 Accrued expenses 9,522 6,276 Total other current liabilities $ 26,422 $ 18,488
Other Non-operating Expense (Income), Net	Other non-operating expense (income), net consists of the following: Year Ended December 31, 2019 2018 2017 (in thousands) Unrealized loss (gain) on financial instrument obligation $ (1,601 ) $ 5,291 $ — Change in fair value of contingent consideration (471 ) — — Loss on debt extinguishment — 1,572 — Other non-operating expense (income) (137 ) 916 (463 ) Total other non-operating expense (income),net $ (2,209 ) $ 7,779 $ (463 )

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
Goodwill and Other Intangible Assets (Tables)	Dec. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of Intangible Assets	Acquired identifiable intangible assets, and related accumulated amortization, as of December 31, 2019 and 2018 consist of: December 31, 2019 Gross Carrying Value Accumulated Amortization Net Book Value (in thousands) Customer relationships $ 7,915 $ 5,024 $ 2,891 Tradenames 2,686 157 2,529 Developed technology 784 65 719 Foreign currency (1,004 ) (876 ) (128 ) Total Intangible Assets $ 10,381 $ 4,370 $ 6,011 December 31, 2018 Gross Carrying Value Accumulated Amortization Net Book Value (in thousands) Customer relationships $ 5,796 $ 4,539 $ 1,257 Foreign currency (1,158 ) (937 ) (221 ) Total Intangible Assets $ 4,638 $ 3,602 $ 1,036
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	As of December 31, 2019, estimated annual amortization expense related to definite lived intangible assets in future periods is as follows: (in thousands) 2020 $ 942 2021 901 2022 866 2023 837 2024 813 Thereafter 1,780 Total $ 6,139
Schedule of Changes in Carrying Values of Goodwill	Changes in the carrying values of goodwill for twelve months ended December 31, 2019 are as follows: (in thousands) Balance as of January 1, 2019 $ — ROCCAT Acquisition 8,515 Balance as of December 31, 2019 $ 8,515

Credit Facilities and Long-Te_2

Credit Facilities and Long-Term Debt (Tables)	12 Months Ended
Credit Facilities and Long-Term Debt (Tables)	Dec. 31, 2019
Debt Disclosure [Abstract]
Schedule of Long-Term Debt Instruments	December 31, 2019 December 31, 2018 (in thousands) Revolving credit facility, maturing March 2024 $ 15,655 $ 37,385

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Schedule of Income Tax Expense (Benefit)	The provision (benefit) for income taxes consists of the following: Year Ended 2019 2018 2017 (in thousands) Federal: Current $ 230 $ 423 $ 227 Deferred (5,910 ) — — Total Federal (5,680 ) 423 227 State and Local: Current 114 300 185 Deferred (1,529 ) — — Total State and Local (1,415 ) 300 185 Foreign Current 897 378 — Deferred (39 ) 636 181 Total Foreign 858 1,014 181 Total $ (6,237 ) $ 1,737 $ 593
Schedule of Effective Income Tax Rate Reconciliation	The reconciliation between the provision (benefit) for income taxes and the expected provision (benefit) for income taxes at the U.S. federal statutory rate is as follows: Year Ended December 31, 2019 2018 2017 (in thousands) U.S. Operations $ 8,030 $ 37,466 $ (3,722 ) Foreign Operations 3,677 3,461 1,067 Income (loss) before income taxes 11,707 40,927 (2,655 ) Federal statutory rate 21 % 21 % 35 % Provision for income taxes at federal statutory rate 2,458 8,595 (929 ) State taxes, net of federal benefit 989 594 157 Foreign tax rate differential (33 ) (50 ) (92 ) Change in valuation allowance (10,112 ) (8,497 ) (10,043 ) Change in tax rate — — 10,526 Interest on Series B redeemable preferred stock — 105 504 Unrealized loss (gain) on financial instrument obligation (336 ) 1,111 — Subpart F Income — — 502 Excess tax benefit recognized (44 ) (1,175 ) (782 ) Foreign tax credit — (358 ) — Global intangible low taxed income 637 456 — Prior year adjustment 429 — 241 Change in unrecognized tax benefits (715 ) 634 (27 ) Nondeductible compensation 402 136 — Other 88 186 536 Provision (benefit) for income taxes $ (6,237 ) $ 1,737 $ 593
Schedule of Deferred Tax Assets and Liabilities	The tax effects of significant items comprising the Company’s deferred tax assets/(liabilities) are as follows: December 31, 2019 December 31, 2018 (in thousands) Allowance for doubtful accounts $ 34 $ 39 Inventories 720 758 Employee benefits 2,048 2,304 Net operating loss 3,272 5,870 Sales reserves 1,644 1,920 Unrecognized tax benefits 387 521 Depreciation and amortization 182 (512 ) Intangible assets (140 ) (176 ) Other 32 94 8,179 10,818 Valuation allowance (893 ) (11,005 ) Net deferred tax assets (liabilities) $ 7,286 $ (187 )
Schedule of Unrecognized Tax Benefits	A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as follows: December 31, 2019 December 31, 2018 (in thousands) Gross unrecognized tax benefit, beginning of period $ 1,695 $ 1,468 Additions based on tax positions related to the current year 213 227 Settlements related to tax positions in a prior period (376 ) — Decreases based on tax positions in a prior period (293 ) — Gross unrecognized tax benefit, end of period $ 1,239 $ 1,695
Summary of Income Tax Examinations	The Company files U.S., state and foreign income tax returns in jurisdictions with various statutes of limitations. Below is a summary of the filing jurisdictions and open tax years: Open Years U.S. Federal 2016 - 2018 California 2015 - 2018 New Jersey 2015 - 2018 New York 2016 - 2018 Pennsylvania 2016 - 2018 Texas 2015 - 2018 United Kingdom 2016 - 2018

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	12 Months Ended
Net Income (Loss) Per Share (Tables)	Dec. 31, 2019
Earnings Per Share [Abstract]
Schedule of Computation of Basic and Diluted Net Income (Loss) per Share of Common Stock	The following table sets forth the computation of basic and diluted net income (loss) per share of common stock attributable to common stockholders: Year Ended December 31, 2019 2018 2017 (in thousands, except per-share data) Net income (loss) $ 17,944 $ 39,190 $ (3,248 ) Unrealized gain on financial instrument obligation (1,601 ) — — Net income (loss) - diluted $ 16,343 $ 39,190 $ (3,248 ) Weighted average common shares outstanding — Basic 14,483 13,512 12,336 Plus incremental shares from assumed conversions: Dilutive effect of restricted stock 19 31 — Dilutive effect of stock options 432 565 — Dilutive effect of warrants 754 181 — Weighted average common shares outstanding — Diluted 15,688 14,289 12,336 Net income (loss) per share: Basic $ 1.24 $ 2.90 $ (0.26 ) Diluted $ 1.04 $ 2.74 $ (0.26 )
Schedule of Antidilutive Securities Excluded from Computation of Diluted Net Income per Share of Common Stock	Year Ended December 31, 2019 2018 2017 (in thousands) Stock options 480 86 1,589 Warrants — 377 765 Unvested restricted stock awards 194 107 36 Total 674 570 2,390

Equity and Stock-Based Compen_2

Equity and Stock-Based Compensation (Tables)	12 Months Ended
Equity and Stock-Based Compensation (Tables)	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Activity and Total Number of Shares Available for Grant	The following table presents the stock activity and the total number of shares available for grant as of December 31, 2019: (in thousands) Balance at December 31, 2018 1,201 Plan amendment 1,440 Options granted (627 ) Restricted stock granted (292 ) Forfeited/Expired shares added back 55 Balance at December 31, 2019 1,777
Stock-based Compensation Expense	Total estimated stock-based compensation expense for employees and non-employees, related to all of the Company's stock-based awards, was comprised as follows: Year ended December 31, 2019 2018 2017 (in thousands) Cost of revenue $ 150 $ 289 $ (66 ) Selling and marketing 691 186 100 Research and development 417 136 232 General and administrative 2,300 1,266 1,164 Total stock-based compensation $ 3,558 $ 1,877 $ 1,430
Stock Option Activity	Options Outstanding Number of Shares Underlying Outstanding Options Weighted- Average Exercise Price Weighted- Average Remaining Contractual Term Aggregate Intrinsic Value (in years) Outstanding at December 31, 2018 1,654,729 $ 6.41 7.36 $ 14,374,572 Granted 626,636 11.45 Exercised (88,927 ) 3.71 Forfeited (49,513 ) 13.57 Outstanding at December 31, 2019 2,142,925 $ 7.83 7.13 $ 6,545,982 Vested and expected to vest at December 31, 2019 2,091,287 $ 7.82 7.09 $ 6,451,094 Exercisable at December 31, 2019 1,063,745 $ 6.54 5.48 $ 3,926,696
Schedule of Weighted-Average Assumptions	Plan was estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions: Expected term (in years) 6.1 Risk-free interest rate 1.5% - 2.7% Expected volatility 38.0% - 48.2% Dividend rate 0%
Restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Activity	Shares Weighted Average Grant Date Fair Value Per Share Nonvested restricted stock at December 31, 2018 265,636 $ 19.29 Granted 292,423 11.51 Vested (131,594 ) 15.80 Shares forfeited (4,975 ) 12.10 Nonvested restricted stock at December 31, 2019 421,490 $ 15.06

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
Segment Information (Tables)	Dec. 31, 2019
Segment Reporting [Abstract]
Schedule of Total Net Revenues	The following table represents total net revenue based on where customers are physically located: Year Ended December 31, 2019 2018 2017 (in thousands) North America $ 166,748 $ 215,601 $ 103,159 United Kingdom 25,671 34,509 21,113 Europe 34,707 30,244 20,277 Other 7,537 7,083 4,586 Total net revenues $ 234,663 $ 287,437 $ 149,135
Property and Equipment Net Based on Location	The following table represents property and equipment, net based on physical location: Year Ended December 31, 2019 2018 (in thousands) United States $ 2,906 $ 5,705 International 1,056 151 Total $ 3,962 $ 5,856

Commitment and Contingencies (T

Commitment and Contingencies (Tables)	12 Months Ended
Commitment and Contingencies (Tables)	Dec. 31, 2019
Commitments And Contingencies Disclosure [Abstract]
Schedule of Product Warranty Liability	The following table provides the changes in our product warranties, which are included in other current liabilities: Year ended December 31, 2019 2018 2017 (in thousands) Warranty, beginning of period $ 668 $ 472 $ 639 Warranty costs accrued 816 864 310 Settlements of warranty claims (742 ) (668 ) (477 ) Warranty, end of period $ 742 $ 668 $ 472
Lessee, Operating Lease, Disclosure	The components of the right-of-use assets and lease liabilities were as follows: Balance Sheet Classification December 31, 2019 (in thousands) Right-of-use assets Other assets $ 1,770 Lease liability obligations, current Other current liabilities $ 595 Lease liability obligations, noncurrent Other liabilities 1,280 Total lease liability obligations $ 1,875 Weighted-average remaining lease term (in years) 3.0 Weighted-average discount rate 3.75 %
Schedule of Future Minimum Rental Payments for Operating Leases	Approximate future minimum lease payments for the Company’s right of use assets over the remaining lease periods as of December 31, 2019 (in thousands) 2020 660 2021 581 2022 227 2023 103 2024 103 Thereafter 293 Total minimum payments 1,967 Less: Imputed interest (92 ) Total $ 1,875

Selected Quarterly Financial _2

Selected Quarterly Financial Data - Unaudited (Tables)	12 Months Ended
Selected Quarterly Financial Data - Unaudited (Tables)	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Financial Information - Unaudited	Fiscal 2019 Quarter First Second Third Fourth (in thousands, except per share data) Net Revenue $ 44,846 $ 41,330 $ 46,723 $ 101,764 Gross Margin 14,787 13,171 15,043 35,712 Net Income (Loss) 3,055 (2,373 ) (3,124 ) 20,386 Earnings (Loss) Per Share Basic $ 0.21 $ (0.16 ) $ (0.22 ) $ 1.41 Diluted $ 0.19 $ (0.16 ) $ (0.22 ) $ 1.29 Fiscal 2018 Quarter First Second Third Fourth (in thousands, except per share data) Net Revenue $ 40,886 $ 60,805 $ 74,427 $ 111,319 Gross Margin 15,029 20,277 30,502 42,891 Net Income (Loss) 1,962 (2,318 ) 14,932 24,614 Earnings (Loss) Per Share Basic $ 0.16 $ (0.17 ) $ 1.07 $ 1.73 Diluted $ 0.16 $ (0.17 ) $ 0.91 $ 1.33

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Additional Information (Details)	Apr. 06, 2018	Dec. 31, 2019USD ($)CustomerSegment	Dec. 31, 2018USD ($)Customer	Dec. 31, 2017USD ($)Customer	May 31, 2019USD ($)	Jan. 01, 2019USD ($)
Summary Of Significant Accounting Policies [Line Items]
Allowance for cash discounts		$ 16,000,000
Allowance for sales returns		8,800,000
Advertising expense		7,500,000	$ 6,700,000	$ 4,200,000
Cooperative advertising expense		$ 5,700,000	5,400,000	$ 3,100,000
Amortization period of unrecognized compensation costs		4 years
Goodwill		$ 8,515,000
Non financial assets or non financial liabilities fair value disclosure		0	0
Cash and cash equivalents		$ 8,249,000	7,078,000
Number of reportable segments \| Segment		1
Operating lease, liability		$ 1,875,000				$ 3,300,000
Foreign Countries
Summary Of Significant Accounting Policies [Line Items]
Cash and cash equivalents		$ 5,900,000	$ 5,200,000
Sales Revenue, Net \| Customer Concentration Risk
Summary Of Significant Accounting Policies [Line Items]
Number of customers \| Customer		3	3	3
Concentration risk, percentage		42.00%
Accounts Receivable \| Customer Concentration Risk
Summary Of Significant Accounting Policies [Line Items]
Number of customers \| Customer		3	3	3
Customer One \| Sales Revenue, Net \| Customer Concentration Risk
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage		11.00%	13.00%	16.00%
Customer One \| Accounts Receivable \| Customer Concentration Risk
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage		33.00%	30.00%
Customer Two \| Sales Revenue, Net \| Customer Concentration Risk
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage		20.00%	19.00%	14.00%
Customer Two \| Accounts Receivable \| Customer Concentration Risk
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage		29.00%	29.00%
Customer Three \| Sales Revenue, Net \| Customer Concentration Risk
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage		11.00%	11.00%	13.00%
Customer Three \| Accounts Receivable \| Customer Concentration Risk
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage		9.00%	18.00%
ROCCAT
Summary Of Significant Accounting Policies [Line Items]
Goodwill					$ 8,515,000
Common stock
Summary Of Significant Accounting Policies [Line Items]
Stockholders' equity, reverse stock split		On April 6, 2018, the Company effected a one-for-four reverse stock split of its common stock pursuant to which every four shares of common stock outstanding immediately prior to the reverse split were combined into one share of common stock.
Stockholders' equity note, stock split, conversion ratio	0.25

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Summary of Property and Equipment, Net (Details)	12 Months Ended
	Dec. 31, 2019
Machinery and equipment
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Software and software development \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	2 years
Software and software development \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Tooling
Property, Plant and Equipment [Line Items]
Estimated useful life	2 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated useful life	Term of lease or economic life of asset, if shorter
Demonstration units and convention booths
Property, Plant and Equipment [Line Items]
Estimated useful life	2 years

Acquisitions - Additional Infor

Acquisitions - Additional Information (Details) - USD ($) $ in Thousands	May 31, 2019	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Net of cash	$ 12,700
Potential earn outs payments		$ 3,400								$ 3,400
Revenue		101,764	$ 46,723	$ 41,330	$ 44,846	$ 111,319	$ 74,427	$ 60,805	$ 40,886	234,663	$ 287,437	$ 149,135
Fair value of contingent consideration		$ 1,600								1,600
Fair value of contingent consideration decreased										500
ROCCAT
Business Acquisition [Line Items]
Revenue										14,400
Fair value of contingent consideration	1,592
General and Administrative Expenses \| ROCCAT
Business Acquisition [Line Items]
Acquisition costs										$ 3,500
Maximum
Business Acquisition [Line Items]
Potential earn outs payments	$ 3,400

Acquisitions - Summary of Preli

Acquisitions - Summary of Preliminary ROCCAT Purchase Price Allocation (Details) - USD ($) $ in Thousands	Dec. 31, 2019	May 31, 2019
Business Acquisition [Line Items]
Contingent consideration	$ (1,600)
Goodwill	$ 8,515
ROCCAT
Business Acquisition [Line Items]
Receivables		$ 1,257
Inventories		6,986
Property and equipment		1,110
Intangible assets		5,589
Other long-term assets		461
Accounts payable		(5,510)
Accrued and other current liabilities		(3,821)
Contingent consideration		(1,592)
Other non-current liabilities		(328)
Total identifiable net assets		4,152
Goodwill		8,515
Total consideration		$ 12,667

Acquisitions - Summary of Under

Acquisitions - Summary of Underlying Intangible Assets Related to ROCCAT (Details) - ROCCAT $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Business Acquisition [Line Items]
Intangible assets	$ 5,589
Customer Relationships
Business Acquisition [Line Items]
Intangible assets useful life	7 years
Intangible assets	$ 2,119
Trade Names
Business Acquisition [Line Items]
Intangible assets useful life	10 years
Intangible assets	$ 2,686
Developed Technology
Business Acquisition [Line Items]
Intangible assets useful life	7 years
Intangible assets	$ 784

Fair Value Measurement - Summar

Fair Value Measurement - Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial instrument obligation		$ 7,848
Reported Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents, fair value disclosure	$ 8,249	7,078
Financial instrument obligation		7,848
Contingent consideration liabilities	1,121
Reported Value Measurement \| Revolving Credit Facility, Maturing March 2024 \| Line of Credit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument, fair value disclosure	15,655	37,385
Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents, fair value disclosure	8,249	7,078
Financial instrument obligation		7,848
Contingent consideration liabilities	1,121
Estimate of Fair Value Measurement \| Revolving Credit Facility, Maturing March 2024 \| Line of Credit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument, fair value disclosure	$ 15,655	$ 37,385

Allowance for Sales Returns - S

Allowance for Sales Returns - Schedule of Allowances for Sales Returns (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	$ 23,271	$ 12,704
Reserve accrual	18,935	26,194	$ 17,967
Recoveries and deductions, net	(16,848)	(19,410)
Balance, end of period	24,940	23,271	12,704
Sales Returns and Allowances
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	9,212	5,533	4,591
Reserve accrual	16,866	21,340	10,457
Recoveries and deductions, net	(17,263)	(17,661)	(9,515)
Balance, end of period	$ 8,815	$ 9,212	$ 5,533

Composition of Certain Financ_3

Composition of Certain Financial Statement Items - Schedule of Inventory (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Condensed Consolidated Balance Sheet Components [Abstract]
Raw materials	$ 1,288	$ 1,410
Finished goods	44,423	48,062
Total inventories	$ 45,711	$ 49,472

Composition of Certain Financ_4

Composition of Certain Financial Statement Items - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 21,540	$ 19,366
Less: accumulated depreciation and amortization	(17,578)	(13,510)
Total property and equipment, net	3,962	5,856
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	1,783	1,616
Software and software development
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	439	306
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	601	535
Tooling
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	5,340	3,925
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	1,326	1,325
Demonstration units and convention booths
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 12,051	$ 11,659

Composition of Certain Financ_5

Composition of Certain Financial Statement Items - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Condensed Consolidated Balance Sheet Components [Abstract]
Depreciation and amortization	$ 4,556	$ 3,954	$ 4,074

Composition of Certain Financ_6

Composition of Certain Financial Statement Items - Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Condensed Consolidated Balance Sheet Components [Abstract]
Accrued customer fees	$ 3,147	$ 570
Accrued royalty	3,880	4,069
Accrued employee expenses	3,674	4,570
Accrued marketing	3,695	1,692
Foreign tax liability	2,504	1,311
Accrued expenses	9,522	6,276
Total other current liabilities	$ 26,422	$ 18,488

Composition of Certain Financ_7

Composition of Certain Financial Statement Items - Other Non-operating Expense (Income), Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Schedule of Non-Operating Expense (Income) [Line Items]
Unrealized loss (gain) on financial instrument obligation	$ (1,601)	$ 5,291
Loss on debt extinguishment		1,572
Total other non-operating expense (income),net	(2,209)	7,779	$ (463)
Other Nonoperating Income (Expense)
Schedule of Non-Operating Expense (Income) [Line Items]
Unrealized loss (gain) on financial instrument obligation	(1,601)	5,291
Change in fair value of contingent consideration	(471)
Loss on debt extinguishment		1,572
Other non-operating expense (income)	(137)	916	(463)
Total other non-operating expense (income),net	$ (2,209)	$ 7,779	$ (463)

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets, accumulated amortization	$ 4,370	$ 3,602
Total	6,139
Total intangible assets, gross carrying value	10,381	4,638
Total intangible assets, net book value	6,011	1,036
Finite-lived intangible assets, gross carrying value	(1,004)	(1,158)
Finite-lived intangible assets, accumulated amortization	(876)	(937)
Total	(128)	(221)
Trade Names
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets, gross carrying value	2,686
Finite-lived intangible assets, accumulated amortization	157
Total	2,529
Customer Relationships
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets, gross carrying value	7,915	5,796
Finite-lived intangible assets, accumulated amortization	5,024	4,539
Total	2,891	$ 1,257
Developed Technology
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets, gross carrying value	784
Finite-lived intangible assets, accumulated amortization	65
Total	$ 719

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Oct. 31, 2012	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite Lived Intangible Assets [Line Items]
Amortization of intangible assets		$ 642	$ 303	$ 348
Acquisition of Lygo International Limited \| Customer Relationships
Finite Lived Intangible Assets [Line Items]
Useful life	13 years

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Details) $ in Thousands	Dec. 31, 2019USD ($)
Finite Lived Intangible Assets Future Amortization Expense Current And Five Succeeding Fiscal Years [Abstract]
2020	$ 942
2021	901
2022	866
2023	837
2024	813
Thereafter	1,780
Total	$ 6,139

Goodwill and Other Intangible_6

Goodwill and Other Intangible Assets - Schedule of Changes in Carrying Values of Goodwill (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
ROCCAT Acquisition	$ 8,515
Balance as of December 31, 2019	$ 8,515

Credit Facilities and Long-Te_3

Credit Facilities and Long-Term Debt - Schedule of Long-Term Debt Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Revolving credit facilities \| Revolving Credit Facility, Maturing March 2024
Debt Instrument [Line Items]
Total outstanding debt	$ 15,655	$ 37,385

Credit Facilities and Long-Te_4

Credit Facilities and Long-Term Debt - Additional Information (Details) - USD ($)	Dec. 17, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	May 31, 2019
Debt Instrument [Line Items]
Interest expense, debt		$ 900,000	$ 4,300,000	$ 5,800,000
Amortization of debt financing costs		$ 189,000	$ 1,081,000	$ 1,593,000
Financing costs	$ 600,000
Revolving Credit Facility, Maturing March 2024
Debt Instrument [Line Items]
Expiration date			Mar. 5, 2024
Maximum borrowing capacity			$ 80,000,000
Line of credit facility, capacity available for trade purchases			6,800,000
Line of credit facility, capacity available for specific purpose other than for trade purchases			40,000,000
Debt instrument, covenant, current fixed charge ratio required, minimum		1.00%
Remaining borrowing capacity		$ 32,200,000
Revolving Credit Facility, Maturing March 2024 \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate		5.25%
Revolving Credit Facility, Maturing March 2024 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate		3.13%
Revolving Credit Facility, Maturing March 2024 \| Minimum
Debt Instrument [Line Items]
Unused commitment fee, percent		0.25%
Revolving Credit Facility, Maturing March 2024 \| Minimum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate		0.50%
Revolving Credit Facility, Maturing March 2024 \| Minimum \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate		1.25%
Revolving Credit Facility, Maturing March 2024 \| Minimum \| Adjustable Rate Loans
Debt Instrument [Line Items]
Basis spread on variable rate		2.00%
Revolving Credit Facility, Maturing March 2024 \| Maximum
Debt Instrument [Line Items]
Unused commitment fee, percent		0.50%
Revolving Credit Facility, Maturing March 2024 \| Maximum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate		1.25%
Revolving Credit Facility, Maturing March 2024 \| Maximum \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate		2.00%
Revolving Credit Facility, Maturing March 2024 \| Maximum \| Adjustable Rate Loans
Debt Instrument [Line Items]
Basis spread on variable rate		2.75%
Revolving Credit Facility, Maturing March 2024 \| UK Borrower
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 12,000,000
Revolving Credit Facility, Maturing March 2024 \| TB Germany GmbH \| Maximum \| ROCCAT
Debt Instrument [Line Items]
Line of credit to make investments					$ 4,000,000
Line of credit to make additional investments					$ 4,000,000

Income Taxes - Schedule of Inco

Income Taxes - Schedule of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Federal:
Current	$ 230	$ 423	$ 227
Deferred	(5,910)	0	0
Total Federal	(5,680)	423	227
State and Local:
Current	114	300	185
Deferred	(1,529)	0	0
Total State and Local	(1,415)	300	185
Foreign
Current	897	378	0
Deferred	(39)	636	181
Total Foreign	858	1,014	181
Total	$ (6,237)	$ 1,737	$ 593

Income Taxes - Effective Income

Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. Operations	$ 8,030	$ 37,466	$ (3,722)
Foreign Operations	3,677	3,461	1,067
Income (loss) before income taxes	$ 11,707	$ 40,927	$ (2,655)
Federal statutory rate	21.00%	21.00%	35.00%
Provision for income taxes at federal statutory rate	$ 2,458	$ 8,595	$ (929)
State taxes, net of federal benefit	989	594	157
Foreign tax rate differential	(33)	(50)	(92)
Change in valuation allowance	(10,112)	(8,497)	(10,043)
Change in tax rate	0	0	10,526
Interest on Series B redeemable preferred stock	0	105	504
Unrealized loss (gain) on financial instrument obligation	(336)	1,111	0
Subpart F Income	0	0	502
Excess tax benefit recognized	(44)	(1,175)	(782)
Foreign tax credit	0	(358)	0
Global intangible low taxed income	637	456	0
Prior year adjustment	429	0	241
Change in unrecognized tax benefits	(715)	634	(27)
Nondeductible compensation	402	136	0
Other	88	186	536
Total	$ (6,237)	$ 1,737	$ 593

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Loss Carryforwards [Line Items]
Federal statutory rate	21.00%	21.00%	35.00%
Foreign Earnings Repatriated			$ 0.5
Change in valuation allowance for deferred tax assets	$ 10.1
Decrease in tax positions of prior years due to settled tax positions	0.7
Unrecognized tax benefits that would impact effective tax rate	1.2
Decrease for tax positions of current years	0.1
Unrecognized tax benefits inclusive of interest and penalties	1.9
Interest and penalties	0.7
2029 \| Federal
Operating Loss Carryforwards [Line Items]
NOL available to offset future income	7
2029 \| State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
NOL available to offset future income	$ 20.8

Income Taxes - Deferred Tax Ass

Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred Tax Assets:
Allowance for doubtful accounts	$ 34	$ 39
Inventories	720	758
Employee benefits	2,048	2,304
Net operating loss	3,272	5,870
Sales reserves	1,644	1,920
Unrecognized tax benefits	387	521
Depreciation and amortization	182
Other	32	94
Valuation allowance	(893)	(11,005)
Total deferred tax assets	8,179	10,818
Deferred Tax Liabilities:
Depreciation and amortization		(512)
Intangible assets	(140)	(176)
Deferred Tax Assets, Net	$ 7,286
Deferred Tax Liabilities, Net		$ (187)

Income Taxes - Schedule of Unre

Income Taxes - Schedule of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Gross unrecognized tax benefit, beginning of period	$ 1,695	$ 1,468
Additions based on tax positions related to the current year	213	227
Settlements related to tax positions in a prior period	(376)	0
Decreases based on tax positions in a prior period	(293)	0
Gross unrecognized tax benefit, end of period	$ 1,239	$ 1,695

Income Taxes - Summary of Incom

Income Taxes - Summary of Income Tax Examinations (Details)	12 Months Ended
Income Taxes - Summary of Income Tax Examinations (Details)	Dec. 31, 2019
U.S. Federal \| Earliest Tax Year
Income Tax Contingency [Line Items]
Open Years	2017
U.S. Federal \| Latest Tax Year
Income Tax Contingency [Line Items]
Open Years	2018
California \| Earliest Tax Year
Income Tax Contingency [Line Items]
Open Years	2015
California \| Latest Tax Year
Income Tax Contingency [Line Items]
Open Years	2018
New Jersey \| Earliest Tax Year
Income Tax Contingency [Line Items]
Open Years	2015
New Jersey \| Latest Tax Year
Income Tax Contingency [Line Items]
Open Years	2018
New York \| Earliest Tax Year
Income Tax Contingency [Line Items]
Open Years	2016
New York \| Latest Tax Year
Income Tax Contingency [Line Items]
Open Years	2018
Pennsylvania \| Earliest Tax Year
Income Tax Contingency [Line Items]
Open Years	2016
Pennsylvania \| Latest Tax Year
Income Tax Contingency [Line Items]
Open Years	2018
Texas \| Earliest Tax Year
Income Tax Contingency [Line Items]
Open Years	2015
Texas \| Latest Tax Year
Income Tax Contingency [Line Items]
Open Years	2018
United Kingdom \| Earliest Tax Year
Income Tax Contingency [Line Items]
Open Years	2016
United Kingdom \| Latest Tax Year
Income Tax Contingency [Line Items]
Open Years	2018

Preferred Stock - Additional In

Preferred Stock - Additional Information (Details) - USD ($)	Apr. 23, 2018	Feb. 18, 2015	Sep. 30, 2010	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Class of Stock [Line Items]
Common stock shares outstanding				14,488,152	14,268,184
Series B redeemable preferred stock	$ 19,400,000					$ 18,900,000
Financial instruments subject to mandatory redemption, settlement terms, share value, amount	$ 2,600,000
Financial instrument obligation					$ 7,848,000
Unrealized gain (loss) on investments				$ 1,600,000	(5,300,000)
Dividend declared				$ 0	0	0
Common stock
Class of Stock [Line Items]
Common stock shares outstanding	1,307,143
Warrant
Class of Stock [Line Items]
Common stock shares outstanding	550,000
Pending Litigation \| Bonanno vs. VTBH
Class of Stock [Line Items]
Loss contingency, damages sought, value		$ 15,100,000
Payments for legal settlements	$ 1,000,000
Contingent legal settlements	1,250,000
Amount of consideration allocated for litigation settlement	$ 0
Series B Redeemable Preferred Stock
Class of Stock [Line Items]
Shares issued			1,000,000
Stock issued			$ 12,400,000
Redemption price per share (in dollars per share)			$ 12.425371
Annual dividend rate (as a percentage)				8.00%
Interest expense, other				$ 0	$ 500,000	$ 1,400,000

Net Income (Loss) Per Share - S

Net Income (Loss) Per Share - Schedule of Computation of Basic and Diluted Net Income (Loss) per Share of Common Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Basic and diluted:
Net income (loss)	$ 20,386	$ (3,124)	$ (2,373)	$ 3,055	$ 24,614	$ 14,932	$ (2,318)	$ 1,962	$ 17,944	$ 39,190	$ (3,248)
Unrealized gain on financial instrument obligation									(1,601)	5,291
Net income (loss) - diluted									$ 16,343	$ 39,190	$ (3,248)
Basic:
Weighted-average common shares outstanding, basic (in shares)									14,483	13,512	12,336
Incremental Common Shares Attributable to Dilutive Effect of Restricted Stock Awards									19	31
Dilutive effect of stock options									432	565
Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants									754	181
Diluted:
Weighted-average common shares outstanding, diluted (in shares)									15,688	14,289	12,336
Net income (loss) per share:
Basic (in dollars per share)	$ 1.41	$ (0.22)	$ (0.16)	$ 0.21	$ 1.73	$ 1.07	$ (0.17)	$ 0.16	$ 1.24	$ 2.90	$ (0.26)
Diluted (in dollars per share)	$ 1.29	$ (0.22)	$ (0.16)	$ 0.19	$ 1.33	$ 0.91	$ (0.17)	$ 0.16	$ 1.04	$ 2.74	$ (0.26)

Net Income (Loss) Per Share -_2

Net Income (Loss) Per Share - Schedule of Antidilutive Securities Excluded from Computation of Diluted Net Income per Share of Common Stock (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	674	570	2,390
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	480	86	1,589
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	0	377	765
Restricted stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	194	107	36

Equity and Stock-Based Compen_3

Equity and Stock-Based Compensation - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Apr. 09, 2019	Apr. 30, 2018	Nov. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase activity, authorized amount				$ 15,000,000
Stock repurchased during period, shares	300,000
Stock repurchased during period, value	$ 2,525,000
Forfeiture period after ending employment	90 days
Employee service share-based compensation, tax benefit from compensation expense	$ 100,000	$ 1,200,000
Options exercised, intrinsic value	$ 600,000	$ 9,000,000
Compensation cost not yet recognized, period for recognition	4 years
Weighted average grant date fair value of options granted (in dollars per share)	$ 4.71	$ 3.33	$ 0.29
Estimated grant date fair value of options vested	$ 1,000,000	$ 700,000	$ 1,300,000
Fully-funded warrants exercisable					500,000
Fair value reclassified to additional paid-in-capital	6,200,000
Unrealized gain (loss) on the warrants	1,601,000	(5,291,000)
Other Non-operating Expense (Income), Net
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrealized gain (loss) on the warrants	$ 1,600,000	$ (5,300,000)
VTB Holdings, Inc
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class of warrant or right, outstanding	400,000					300,000
Class of warrant or right, exercise price of warrants or rights	$ 10.16					$ 8
Tax Year 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee service share-based compensation, tax benefit from compensation expense			$ 2,200,000
Non-Executives
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeiture rate	10.00%
Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeiture rate	0.00%
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award expiration period	10 years
Total unrecognized compensation cost	$ 3,500,000
Compensation cost not yet recognized, period for recognition	2 years 8 months 12 days
Restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award restriction period	3 years
Total unrecognized compensation cost	$ 5,500,000
Compensation cost not yet recognized, period for recognition	2 years 7 months 6 days
Phantom equity \| 2011 Phantom Equity Appreciation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized	1,500,000
Shares granted and outstanding (in shares)	178,586
Weighted average exercise price of options granted and outstanding (in dollars per share)	$ 3.72

Equity and Stock-Based Compen_4

Equity and Stock-Based Compensation - Stock Activity and Total Number of Shares Available for Grant (Details)	12 Months Ended
	Dec. 31, 2019shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Shares Available for Grant [Roll Forward]
Balance, beginning of period	1,201,000
Plan amendment	1,440,000
Options granted	(626,636)
Restricted stock granted	(292,000)
Forfeited/Expired shares added back	55,000
Balance, end of period	1,777,000

Equity and Stock-Based Compen_5

Equity and Stock-Based Compensation - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	$ 3,558	$ 1,877	$ 1,430
Cost of revenue
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	150	289	(66)
Selling and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	691	186	100
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	417	136	232
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	$ 2,300	$ 1,266	$ 1,164

Equity and Stock-Based Compen_6

Equity and Stock-Based Compensation - Stock Option Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding beginning of period (in shares)	1,654,729
Granted (in shares)	626,636
Exercised (in shares)	(88,927)
Forfeited (in shares)	(49,513)
Outstanding end of period (in shares)	2,142,925	1,654,729
Vested and expected to vest (in shares)	2,091,287
Exercisable (in shares)	1,063,745
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding beginning of period (in dollars per share)	$ 6.41
Granted (in dollars per share)	11.45
Exercised (in dollars per share)	3.71
Forfeited (in dollars per share)	13.57
Outstanding end of period (in dollars per share)	7.83	$ 6.41
Vested and expected to vest (in dollars per share)	7.82
Exercisable (in dollars per share)	$ 6.54
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Outstanding, weighted average remaining contractual term	7 years 1 month 17 days	7 years 4 months 9 days
Vested and expected to vest, weighted average remaining contractual term	7 years 1 month 2 days
Exercisable, weighted average remaining contractual term	5 years 5 months 23 days
Outstanding, intrinsic value	$ 6,545,982	$ 14,374,572
Vested and expected to vest, intrinsic value	6,451,094
Exercisable, intrinsic value	$ 3,926,696

Equity and Stock-Based Compen_7

Equity and Stock-Based Compensation - Schedule of Weighted-Average Assumptions (Details)	12 Months Ended
	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate, minimum	1.50%
Risk-free interest rate, maximum	2.70%
Expected volatility, minimum	38.00%
Expected volatility, maximum	48.20%
Dividend rate	0.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	6 years 1 month 6 days

Equity and Stock-Based Compen_8

Equity and Stock-Based Compensation - Restricted Stock Activity (Details)	12 Months Ended
	Dec. 31, 2019$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Granted (in shares)	292,000
Restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding beginning of period (in shares)	265,636
Granted (in shares)	292,423
Vested (in shares)	(131,594)
Forfeited (in shares)	(4,975)
Outstanding end of period (in shares)	421,490
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding beginning of period (in dollars per share) \| $ / shares	$ 19.29
Granted (in dollars per share) \| $ / shares	11.51
Vested (in dollars per share) \| $ / shares	15.80
Forfeited (in dollars per share) \| $ / shares	12.10
Outstanding end of period (in dollars per share) \| $ / shares	$ 15.06

Segment Information - Additiona

Segment Information - Additional Information (Details)	12 Months Ended
Segment Information - Additional Information (Details)	Dec. 31, 2019Segment
Segment Reporting [Abstract]
Number of reportable segments	1

Segment Information - Schedule

Segment Information - Schedule of Total Net Revenues (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 101,764	$ 46,723	$ 41,330	$ 44,846	$ 111,319	$ 74,427	$ 60,805	$ 40,886	$ 234,663	$ 287,437	$ 149,135
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue									166,748	215,601	103,159
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue									25,671	34,509	21,113
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue									34,707	30,244	20,277
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue									$ 7,537	$ 7,083	$ 4,586

Segment Information - Net Reven

Segment Information - Net Revenues and Property and Equipment Net by Geographical Location (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 3,962	$ 5,856
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	2,906	5,705
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 1,056	$ 151

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details) € in Millions, $ in Millions	Jul. 20, 2016EUR (€)	Dec. 31, 2019USD ($)	Aug. 05, 2013
Operating Leased Assets [Line Items]
Operating lease, expense		$ 1
Operating lease, payments		$ 1.7
Minimum
Operating Leased Assets [Line Items]
Operating lease remaining lease term		1 year
Maximum
Operating Leased Assets [Line Items]
Operating lease remaining lease term		9 years
Bigben Interactive S A
Operating Leased Assets [Line Items]
Loss contingency,additional damages \| €	€ 5
Merger of VTB Holdings, Inc. and Parametric Sound Corporation \| VTB Holdings, Inc
Operating Leased Assets [Line Items]
Ownership percentage			80.00%
Merger of VTB Holdings, Inc. and Parametric Sound Corporation \| Parametric Sound Corporation
Operating Leased Assets [Line Items]
Ownership percentage			20.00%

Commitments and Contingencies_2

Commitments and Contingencies - Schedule of Product Warranty Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Movement in Standard Product Warranty Accrual [Roll Forward]
Warranty, beginning of period	$ 668	$ 472	$ 639
Warranty costs accrued	816	864	310
Settlements of warranty claims	(742)	(668)	(477)
Warranty, end of period	$ 742	$ 668	$ 472

Commitments and Contingencies_3

Commitments and Contingencies - Components of the Right-of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Right-of-use assets	$ 1,770
Lease liability obligations, current	595
Lease liability obligations, noncurrent	1,280
Total lease liability obligations	$ 1,875	$ 3,300
Weighted-average remaining lease term (in years)	3 years
Weighted Average
Lessee, Lease, Description [Line Items]
Weighted-average discount rate	3.75%

Commitments and Contingencies_4

Commitments and Contingencies - Schedule of Future Minimum Rental Payments for Operating Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Commitments And Contingencies Disclosure [Abstract]
2020	$ 660
2021	581
2022	227
2023	103
2024	103
Thereafter	293
Total minimum payments	1,967
Less: Imputed interest	(92)
Total	$ 1,875	$ 3,300

Selected Quarterly Financial _3

Selected Quarterly Financial Data - Unaudited - Summary of Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Net revenue	$ 101,764	$ 46,723	$ 41,330	$ 44,846	$ 111,319	$ 74,427	$ 60,805	$ 40,886	$ 234,663	$ 287,437	$ 149,135
Gross Margin	35,712	15,043	13,171	14,787	42,891	30,502	20,277	15,029	78,713	108,699	51,003
Net income (loss)	$ 20,386	$ (3,124)	$ (2,373)	$ 3,055	$ 24,614	$ 14,932	$ (2,318)	$ 1,962	$ 17,944	$ 39,190	$ (3,248)
Earnings (Loss) Per Share
Basic (in dollars per share)	$ 1.41	$ (0.22)	$ (0.16)	$ 0.21	$ 1.73	$ 1.07	$ (0.17)	$ 0.16	$ 1.24	$ 2.90	$ (0.26)
Diluted (in dollars per share)	$ 1.29	$ (0.22)	$ (0.16)	$ 0.19	$ 1.33	$ 0.91	$ (0.17)	$ 0.16	$ 1.04	$ 2.74	$ (0.26)

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	$ 23,271	$ 12,704
Additions	18,935	26,194	$ 17,967
Deductions / Other	(16,848)	(19,410)
Balance, end of period	24,940	23,271	12,704
Sales Returns and Allowances
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	9,212	5,533	4,591
Additions	16,866	21,340	10,457
Deductions / Other	(17,263)	(17,661)	(9,515)
Balance, end of period	8,815	9,212	5,533
Measurement Input, Discount Rate
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	13,892	7,108	7,775
Balance, end of period	15,979	13,892	7,108
Allowance for doubtful accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	167	63	136
Additions	6	389	49
Deductions / Other	(27)	(285)	(122)
Balance, end of period	$ 146	$ 167	63
SEC Schedule, 12-09, Reserve, Legal
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Deductions / Other			$ (18,634)