Immersion (IMMR) 10-Q16 Aug 212021 Q2 Quarterly reportFinancial data

Company Profile

Cover Page

Cover Page - shares	6 Months Ended
Cover Page - shares	Jun. 30, 2021	Aug. 11, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-38334
Entity Registrant Name	IMMERSION CORP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	94-3180138
Entity Address, Address Line One	330 Townsend Street, Suite 234
Entity Address, City or Town	San Francisco
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94107
City Area Code	408
Local Phone Number	467-1900
Title of 12(b) Security	Common Stock, $0.001 par value
Trading Symbol	IMMR
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		32,903,420
Amendment Flag	false
Entity Central Index Key	0001058811
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 107,274	$ 59,522
Accounts and other receivables	2,912	2,218
Prepaid expenses and other current assets	11,942	12,610
Total current assets	122,128	74,350
Property and equipment, net	246	209
Deposits Assets, Noncurrent	12,353	12,571
Other assets	7,222	9,000
Total assets	141,949	96,130
Current liabilities:
Accounts payable	144	149
Accrued compensation	1,641	1,001
Other current liabilities	2,972	2,457
Deferred revenue	5,010	5,173
Total current liabilities	9,767	8,780
Long-term deferred revenue	19,021	21,334
Other long-term liabilities	1,435	2,035
Total liabilities	30,223	32,149
Contingencies (Note 5)
Stockholders’ equity:
Common stock and additional paid-in capital — $0.001 par value; 100,000,000 shares authorized; 43,252,670 and 39,161,214 shares issued, respectively; 31,109,237 and 27,017,781 shares outstanding, respectively	299,124	258,756
Accumulated other comprehensive income	122	122
Accumulated deficit	(105,787)	(113,164)
Treasury stock at cost: 12,143,433 and 12,143,433 shares, respectively	(81,733)	(81,733)
Total stockholders’ equity	111,726	63,981
Total liabilities and stockholders’ equity	$ 141,949	$ 96,130

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	43,252,670	39,161,214
Common stock, shares outstanding (in shares)	31,109,237	27,017,781
Treasury stock, shares (in shares)	12,143,433	12,143,433

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues:
Revenue	$ 11,010	$ 5,668	$ 18,169	$ 11,925
Costs and expenses:
Cost of revenues	41	62	70	106
Sales and marketing	1,194	1,255	2,300	2,971
Research and development	1,332	1,323	2,639	3,012
General and administrative	2,636	4,087	4,860	11,443
Total costs and expenses	5,203	6,727	9,869	17,532
Operating income (loss)	5,807	(1,059)	8,300	(5,607)
Interest and other income (loss), net	40	388	(276)	160
Income (loss) before provision for income taxes	5,847	(671)	8,024	(5,447)
Provision for income taxes	(506)	(41)	(647)	(93)
Net income (loss)	$ 5,341	$ (712)	$ 7,377	$ (5,540)
Basic net loss per share (in dollars per share)	$ 0.17	$ (0.03)	$ 0.25	$ (0.19)
Shares used in calculating basic net loss per share (in shares)	30,982	27,634	29,787	29,320
Diluted net loss per share (in dollars per share)	$ 0.17	$ (0.03)	$ 0.24	$ (0.19)
Shares used in calculating diluted net loss per share (in shares)	31,247	27,634	30,253	29,320
Other comprehensive income (loss)
Change in unrealized gains (loss) on short-term investments	$ 0	$ 0	$ 0	$ (2)
Total other comprehensive income (loss)	0	0	0	(2)
Total comprehensive income (loss)	5,341	(712)	7,377	(5,542)
Royalty and license
Revenues:
Revenue	10,881	5,593	17,949	11,775
Development, services, and other
Revenues:
Revenue	$ 129	$ 75	$ 220	$ 150

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($) $ in Thousands	Total	Common Stock and Additional Paid-In Capital	Accumulated Other Comprehensive Income	Accumulated Deficit	Treasury Stock
Beginning balance (in shares) at Dec. 31, 2019		38,624,784			7,210,456
Beginning balance at Dec. 31, 2019	$ 83,757	$ 253,289	$ 124	$ (118,565)	$ (51,091)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(5,540)			(5,540)
Unrealized gain on available-for-sale securities, net of taxes	(2)		(2)
Issuance of common stock for employee stock purchase (in shares)		10,162
Issuance of stock for ESPP purchases	$ 63	$ 63
Repurchased shares (in shares)	4,900,000				4,932,977
Repurchase of stock	$ (30,642)				$ (30,642)
Release of restricted stock units and awards (in shares)		372,630
Release of restricted stock units and awards	0
Stock-based compensation	2,094	$ 2,094
Ending balance (in shares) at Jun. 30, 2020		39,007,576			12,143,433
Ending balance at Jun. 30, 2020	49,730	$ 255,446	122	(124,105)	$ (81,733)
Beginning balance (in shares) at Mar. 31, 2020		38,824,681			9,223,222
Beginning balance at Mar. 31, 2020	67,744	$ 254,081	122	(123,393)	$ (63,066)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(712)			(712)
Unrealized gain on available-for-sale securities, net of taxes	$ 0
Repurchased shares (in shares)	2,900,000				2,920,211
Repurchase of stock	$ (18,667)				$ (18,667)
Release of restricted stock units and awards (in shares)		182,895
Release of restricted stock units and awards	0
Stock-based compensation	1,365	$ 1,365
Ending balance (in shares) at Jun. 30, 2020		39,007,576			12,143,433
Ending balance at Jun. 30, 2020	49,730	$ 255,446	122	(124,105)	$ (81,733)
Beginning balance (in shares) at Dec. 31, 2020		39,161,214			12,143,433
Beginning balance at Dec. 31, 2020	63,981	$ 258,756	122	(113,164)	$ (81,733)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	7,377			7,377
Unrealized gain on available-for-sale securities, net of taxes	0
Issuance of common stock for employee stock purchase (in shares)		15,543
Issuance of stock for ESPP purchases	89	$ 89
Exercise of stock options, net of shares withheld for employee taxes (in shares)		325,737
Exercise of stock options, net of shares withheld for employee taxes	2,864	$ 2,864
Release of restricted stock units and awards (in shares)		440,365
Release of restricted stock units and awards	0
Stock Issued During Period, Value, New Issues	35,833	$ 35,833
Stock Issued During Period, Shares, New Issues		3,309,811
Stock-based compensation	1,582	$ 1,582
Ending balance (in shares) at Jun. 30, 2021		43,252,670			12,143,433
Ending balance at Jun. 30, 2021	111,726	$ 299,124	122	(105,787)	$ (81,733)
Beginning balance (in shares) at Mar. 31, 2021		43,020,610			12,143,433
Beginning balance at Mar. 31, 2021	105,298	$ 298,037	122	(111,128)	$ (81,733)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	5,341			5,341
Unrealized gain on available-for-sale securities, net of taxes	0
Exercise of stock options, net of shares withheld for employee taxes (in shares)		18,750
Exercise of stock options, net of shares withheld for employee taxes	140	$ 140
Release of restricted stock units and awards (in shares)		213,310
Release of restricted stock units and awards	0
Stock Issued During Period, Value, New Issues	(104)	$ (104)
Stock-based compensation	1,051	$ 1,051
Ending balance (in shares) at Jun. 30, 2021		43,252,670			12,143,433
Ending balance at Jun. 30, 2021	$ 111,726	$ 299,124	$ 122	$ (105,787)	$ (81,733)

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows provided by (used in) operating activities:
Net income (loss)	$ 7,377	$ (5,540)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	389	1,446
Stock-based compensation	1,582	2,094
Deferred income taxes	280	3
Foreign currency remeasurement losses	32	252
Other	45	66
Changes in operating assets and liabilities:
Accounts and other receivables	(694)	1,596
Prepaid expenses and other current assets	667	5,306
Increase (Decrease) in Deposit Assets	(60)	(4,889)
Other assets	1,408	748
Accounts payable	(7)	(338)
Accrued compensation	640	(1,041)
Other current liabilities	610	(1,288)
Deferred revenue	(2,476)	(2,456)
Other long-term liabilities	(739)	(727)
Net cash provided by (used in) operating activities	9,054	(4,768)
Cash flows provided by (used in) investing activities:
Proceeds from maturities of short-term investments	0	3,000
Purchases of property and equipment	(88)	(30)
Net cash provided by (used in) investing activities	(88)	2,970
Cash flows provided by (used in) financing activities:
Proceeds from issuance of common stock, net	35,833	0
Cash paid for purchases of treasury shares	0	(30,642)
Proceeds from issuance of common stock under employee stock purchase plan	89	63
Proceeds from stock options exercises	2,864	0
Net cash provided by (used in) financing activities	38,786	(30,579)
Net increase (decrease) in cash and cash equivalents	47,752	(32,377)
Cash and cash equivalents:
Beginning of period	59,522	86,478
End of period	107,274	54,101
Supplemental disclosure of cash flow information:
Cash paid for income taxes	13	20
Supplemental disclosure of non-cash operating, investing, and financing activities:
Release of restricted stock units and awards under stock plan	4,016	2,554
Leased assets obtained in exchange for new operating lease liabilities	$ 0	$ 577

SIGNIFICANT ACCOUNTING POLICIES

SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
SIGNIFICANT ACCOUNTING POLICIES	Jun. 30, 2021
Accounting Policies [Abstract]
SIGNIFICANT ACCOUNTING POLICIES	SIGNIFICANT ACCOUNTING POLICIES Description of Business Immersion Corporation (the "Company", "Immersion", "we" or "us") was incorporated in 1993 in California and reincorporated in Delaware in 1999. We focus on the creation, design, development, and licensing of innovative haptic technologies that allow people to use their sense of touch more fully as they engage with products and experience the digital world around them. We have adopted a business model under which it provides advanced tactile software, related tools, technical assistance designed to help integrate our patented technology into our customers’ products or enhance the functionality of our patented technology to certain customers, and offers licenses to our patented technology to other customers. Impact of COVID-19 In response to the COVID-19 pandemic, we implemented work-from-home and restricted travel policies in the first quarter of 2020, which are expected to remain in place for most of 2021. We implemented a series of cost reduction initiatives in the first half of 2020 to further preserve financial flexibility. These actions include: reductions of the base salaries and cash compensation of company executives and board members; cancellation and reduction in the 2020 executive and employee bonus plans; renegotiated professional services fees from third-party services providers; relocation of certain positions to lower-cost regions; temporarily suspended company matching of our employee retirement savings plan and taking advantage of the broad-based employer relief provided by the governments. In April 2020, the Government of Canada announced the Canada Emergency Wage Subsidy (“CEWS”) for Canadian employers whose businesses were affected by the COVID-19 pandemic. The CEWS provides a subsidy of up to 75% of eligible employees’ employment insurable remuneration, subject to certain criteria. We applied for the CEWS to the extent we met the requirements to receive the subsidy. During the six months ended June 30, 2021, we recorded $0.2 million in government subsidies as a reduction in operating expenses in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) . During the three months ended June 30, 2020, we recorded $0.2 million in government subsidies as a reduction in operating expenses in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss). Principles of Consolidation and Basis of Presentation The accompanying condensed consolidated financial statements include the accounts of Immersion and our wholly-owned subsidiaries. All intercompany accounts, transactions, and balances have been eliminated in consolidation. The accompanying condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X. Accordingly, these condensed consolidated financial statements do not include all information and footnotes necessary for a complete presentation of the financial position, results of operations, and cash flows, in conformity with U.S. GAAP and should be read in conjunction with our audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020. In the opinion of management, all adjustments consisting of only normal and recurring items necessary for the fair presentation of the financial position and results of operations for the interim periods presented have been included. Use of Estimates The preparation of condensed consolidated financial statements and related disclosures requires management to make estimates and assumptions that affect the reported amounts of the condensed consolidated financial statements. Significant estimates include revenue recognition, useful lives of property and equipment, valuation of income taxes including uncertain tax provisions, stock-based compensation and income taxes. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the results to be expected for the full year. Segment Information We develop, license, and support a wide range of software and IP that more fully engage users’ senses of touch when operating digital devices. We focus on the following target application areas: mobile devices, wearables, consumer, mobile entertainment and other content; console gaming; automotive; medical; and commercial. We manage these application areas in one operating and reporting segment with only one set of management, development, and administrative personnel. Our chief operating decision maker (“CODM”) is the Chief Executive Officer. The CODM approves budgets and allocates resources to and assesses the performance of our business using information about our revenue and operating loss. There is only one segment that is reported to management. Recently Adopted Accounting Pronouncements In December 2019, the Financial Accounting Standard Board (the "FASB") issued Accounting Standard Update No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (ASU 2019-12), which enhances and simplifies various aspects of the income tax accounting guidance, including requirements such as tax basis step-up in goodwill obtained in a transaction that is not a business combination, ownership changes in investments, and interim-period accounting for enacted changes in tax law. The amendment is effective for public companies with fiscal years beginning after December 15, 2020; early adoption is permitted. We adopted this new guidance in the first quarter of 2021. This adoption did not have material impact on our condensed consolidated financial statements.

REVENUE RECOGNITION

REVENUE RECOGNITION	6 Months Ended
REVENUE RECOGNITION	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
REVENUE RECOGNITION	REVENUE RECOGNITION Disaggregated Revenue The following table presents the disaggregation of our revenue for the three and six months ended June 30, 2021 and 2020 (in thousands). Three Months Ended Six Months Ended 2021 2020 2021 2020 Fixed fee license revenue $ 1,824 $ 1,292 $ 3,099 $ 2,578 Per-unit royalty revenue 9,057 4,301 14,850 9,197 Total royalty and license revenue 10,881 5,593 17,949 11,775 Development, services, and other revenue 129 75 220 150 Total revenue $ 11,010 $ 5,668 $ 18,169 $ 11,925 Per-unit Royalty Revenue We record per-unit royalty revenue in the same period in which the licensee’s underlying sales occur. As we generally do not receive the per-unit licensee royalty reports for sales during a given quarter within the time frame that allows us to adequately review the reports and include the actual amounts in our quarterly results for such quarter, we accrue the related revenue based on estimates of our licensees’ underlying sales, subject to certain constraints on our ability to estimate such amounts. We develop such estimates based on a combination of available data including, but not limited to, approved customer forecasts, a look back at historical royalty reporting for each of our customers, and industry information available for the licensed products. As a result of accruing per-unit royalty revenue for the quarter based on such estimates, adjustments will be required in the following quarter to true up revenue to the actual amounts reported by its licensees. In the three months ended June 30, 2021, we recorded adjustments of $2.0 million to increase royalty revenue. We recorded adjustments of $20,000 to decrease royalty revenue during the three months ended June 30, 2020. Contract Assets As of June 30, 2021, we had contract assets of $10.8 million included within Prepaid expenses and other current assets , and $3.2 million included within Other assets, on the Condensed Consolidated Balance Sheets . As of December 31, 2020, we had contract assets of $11.6 million included within Prepaid expenses and other current assets , and $4.6 million included within Other assets , on the Condensed Consolidated Balance Sheets. Contract assets decreased by $2.2 million from December 31, 2020 to June 30, 2021, primarily due to actual royalties billed during the six months ended June 30, 2021. Fixed Fee License Revenue We recognize revenue from a fixed fee license agreement when we have satisfied our performance obligations, which typically occurs upon the transfer of rights to our technology upon the execution of the license agreement. However, in certain contracts, we grant a license to our existing patent portfolio at the inception of the license agreement as well as rights to the portfolio as it evolves throughout the contract term. For such arrangements, we have concluded that there are two separate performance obligations: • Performance Obligation A: to transfer rights to our patent portfolio as it exists when the contract is executed. • Performance Obligation B: to transfer rights to our patent portfolio as it evolves over the term of the contract, including access to new patent applications that the licensee can benefit from over the term of the contract. If a fixed fee license agreement contains only Performance Obligation A, we recognize most or all of the revenue from the agreement at the inception of the contract. For fixed fee license agreements that contain both Performance Obligation A and B, we allocate the transaction price based on the standalone price for each of the two performance obligations. We use a number of factors primarily related to the attributes of our patent portfolio to estimate standalone prices related to Performance Obligation A and B. Once the transaction price is allocated, the portion of the transaction price allocable to Performance Obligation A is recognized in the period the license agreement is signed and the customer can benefit from rights provided in the contract. The portion allocable to Performance Obligation B is recognized on a straight-line basis over the contract term. For such contracts, a contract liability account is established and included within Deferred revenue on the Condensed Consolidated Balance Sheet s. As the rights and obligations in a contract are interdependent, contract assets and contract liabilities that arise in the same contract are presented on a net basis. Based on contracts signed and payments received as of June 30, 2021, we expect to recognize $24.0 million in revenue related to Performance Obligation B under our fixed fee license agreements, which is satisfied over time, including $12.0 million over one to three years and $12.0 million over more than three years. Capitalized Contract Costs During the three and six months ended June 30, 2021, we capitalized $0.1 million and $0.2 million of incremental costs incurred to obtain new contracts with customers, respectively.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	6 Months Ended
FAIR VALUE MEASUREMENTS	Jun. 30, 2021
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS Cash and Cash Equivalents Our financial instruments measured at fair value on a recurring basis consisted of money market funds. We value these securities based quoted prices in active markets for identical assets. Financial instruments are valued based on quoted market prices in active markets include mostly money market securities. Such instruments are generally classified within Level 1 of the fair value hierarchy. Instruments valued based on quoted prices in markets that are less active, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency are generally classified within Level 2 of the fair value hierarchy and include U.S. treasury securities. We had no Level 2 instruments at June 30, 2021 and December 31, 2020. Instruments valued based on unobservable inputs which reflect the reporting entity’s own assumptions or data that market participants would use in valuing an instrument are generally classified within Level 3 of the fair value hierarchy. As of June 30, 2021 and December 31, 2020, we did not hold any Level 3 instruments. Our financial instruments consisted of money market accounts as of June 30, 2021 and December 31, 2020 are classified as cash equivalents. Financial instruments measured at fair value on a recurring basis as of June 30, 2021 and December 31, 2020 are classified based on the valuation technique in the table below (in thousands): June 30, 2021 Fair Value Measurements Using Quoted Prices Significant Significant Total Assets: Money market accounts $ 70,620 $ — $ — $ 70,620 Total assets at fair value (1) $ 70,620 $ — $ — $ 70,620 (1) The above table excludes $36.7 million of cash held in banks. December 31, 2020 Fair Value Measurements Using Quoted Prices Significant Significant Total Assets: Money market accounts 45,614 $ — $ — $ 45,614 Total assets at fair value (2) $ 45,614 $ — $ — 0 $ 45,614 (2) The above table excludes $13.9 million of cash held in banks.

BALANCE SHEET DETAILS

BALANCE SHEET DETAILS	6 Months Ended
BALANCE SHEET DETAILS	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BALANCE SHEET DETAILS	BALANCE SHEETS DETAILS Cash and Cash Equivalents Our cash and cash equivalent balances were as follows (in thousands): June 30, December 31, Cash $ 36,654 $ 13,908 Money market funds 70,620 45,614 Cash and cash equivalents $ 107,274 $ 59,522 Accounts and Other Receivables Accounts and other receivables consisted of the following (in thousands): June 30, December 31, Trade accounts receivable $ 2,193 $ 1,618 Other receivables 719 600 Accounts and other receivables $ 2,912 $ 2,218 Allowance for credit losses as of June 30, 2021 and December 31, 2020 were not material. Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets consisted of the following (in thousands): June 30, December 31, Prepaid expenses 882 816 Contract assets - current 10,821 11,623 Other current assets 239 171 Prepaid expenses and other current assets 11,942 12,610 Other Assets Other assets consisted of the following (in thousands): June 30, December 31, Contract assets - long-term $ 3,172 $ 4,596 Right-of-use ("ROU") assets 1,236 1,607 Deferred tax assets 2,659 2,659 Other assets 155 138 Total other assets $ 7,222 $ 9,000 Other Current Liabilities Other current liabilities are as follows (in thousands): June 30, December 31, Lease liabilities - current 1,289 1,382 Other current liabilities 1,683 1,075 Total other current liabilities $ 2,972 $ 2,457

CONTINGENCIES

CONTINGENCIES	6 Months Ended
CONTINGENCIES	Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
CONTINGENCIES	CONTINGENCIES From time to time, we receive claims from third parties asserting that our technologies, or those of our licensees, infringe on the other parties’ IP rights. Management believes that these claims are without merit. Additionally, periodically, we are involved in routine legal matters and contractual disputes incidental to our normal operations. In management’s opinion, unless we disclosed otherwise, the resolution of such matters will not have a material adverse effect on our consolidated financial condition, results of operations, or liquidity. In the normal course of business, we provide indemnification of varying scope to customers, most commonly to licensees in connection with licensing arrangements that include our IP, although these provisions can cover additional matters. Historically, costs related to these guarantees have not been significant, and we are unable to estimate the maximum potential impact of these guarantees on its future results of operations. Samsung Electronics Co. v. Immersion Corporation and Immersion Software Ireland Limited On April 28, 2017, Immersion and Immersion Software Ireland Limited (collectively referred to as “Immersion” in this section) received a letter from Samsung Electronics Co. (“Samsung”) requesting that we reimburse Samsung with respect to withholding tax and penalties imposed on Samsung by the Korean tax authorities following an investigation where the tax authority determined that Samsung failed to withhold taxes on Samsung’s royalty payments to Immersion Software Ireland from 2012 to 2016. On July 12, 2017, on behalf of Samsung, Immersion filed an appeal with the Korea Tax Tribunal regarding their findings with respect to the withholding taxes and penalties. On October 18, 2018, the Korea Tax Tribunal held a hearing and on November 19, 2018, the Korea Tax Tribunal issued its ruling in which it decided not to accept our arguments with respect to the Korean tax authorities’ assessment of withholding tax and penalties imposed on Samsung. On behalf of Samsung, we filed an appeal with the Korea Administrative Court on February 15, 2019. On July 16, 2020, the Korea Administrative Court issued its ruling in which it ruled that the withholding taxes and penalties which were imposed by the Korean tax authorities on Samsung should be cancelled with some litigation costs to be borne by the Korean tax authorities. On August 1, 2020, the Korean tax authorities filed an appeal with the Korea High Court. The first hearing in the Korea High Court occurred on November 11, 2020. A second hearing occurred on January 13, 2021. A third hearing occurred on March 21, 2021. The Korea High Court had indicated that a final decision was originally expected on May 28, 2021, but instead, decided to hold a fourth hearing on July 9, 2021. Following the hearing, the Court indicated that it expects to render a decision on this matter on October 1, 2021. On September 29, 2017, Samsung filed an arbitration demand with the International Chamber of Commerce against us demanding that we reimburse Samsung for the imposed tax and penalties that Samsung paid to the Korean tax authorities. Samsung is requesting that we pay Samsung the amount of KRW 7,841,324,165 (approximately $6.9 million) plus interest from and after May 2, 2017, plus the cost of the arbitration including legal fees. On March 27, 2019, we received the final award. The award ordered Immersion to pay Samsung KRW 7,841,324,165 (approximately $6.9 million as of March 31, 2019) which we paid on April 22, 2019 and recorded in Long-term deposit on our Condensed Consolidated Balance Sheets. The award also denied Samsung’s claim for interest from and after May 2, 2017 and ordered Immersion to pay Samsung’s cost of the arbitration in the amount of approximately $871,454, which was paid in 2019. We believe that there are valid defenses to all of the claims from the Korean tax authorities. We intend to vigorously defend against the claims from the Korean tax authorities. We expect to be reimbursed by Samsung to the extent we ultimately prevail in the appeal in the Korea courts. On March 31, 2019, $6.9 million was recorded as a deposit included in Long-term deposits on our Condensed Consolidated Balance Sheets. In the event that we do not ultimately prevail in our appeal in the Korean courts, the deposit included in Long-term deposits would be recorded as additional income tax expense on our Condensed Consolidated Statements of Operations and Comprehensive Income (Loss), in the period in which we do not ultimately prevail. LGE Korean Withholding Tax Matter On October 16, 2017, we received a letter from LG Electronics Inc. (“LGE”) requesting that we reimburse LGE with respect to withholding tax imposed on LGE by the Korean tax authorities following an investigation where the tax authority determined that LGE failed to withhold on LGE’s royalty payments to Immersion Software Ireland from 2012 to 2014. Pursuant to an agreement reached with LGE, on April 8, 2020, we provided a provisional deposit to LGE in the amount of KRW 5,916,845,454 (approximately $5.0 million) representing the amount of such withholding tax that was imposed on LGE, which provisional deposit would be returned to us to the extent we ultimately prevail in the appeal in the Korea courts. In the second quarter of 2020, we recorded this deposit in Long-term deposits on our Condensed Consolidated Balance Sheets. In the event that we do not ultimately prevail in our appeal in the Korean courts, the deposit included in Long-term deposits would be recorded as additional income tax expense on our Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) , in the period in which we do not ultimately prevail. On November 3, 2017, on behalf of LGE, we filed an appeal with the Korea Tax Tribunal regarding their findings with respect to the withholding taxes. The Korea Tax Tribunal hearing took place on March 5, 2019. On March 19, 2019, the Korea Tax Tribunal issued its ruling in which it decided not to accept our arguments with respect to the Korean tax authorities’ assessment of withholding tax and penalties imposed on LGE. On behalf of LGE, we filed an appeal with the Korea Administrative Court on June 10, 2019. The first hearing occurred on October 15, 2019. A second hearing occurred on December 19, 2019. A third hearing occurred on February 13, 2020. A fourth hearing occurred on June 9, 2020. A fifth hearing occurred on July 16, 2020. We anticipated a decision to be rendered on or about October 8, 2020, but the Korea Administrative Court scheduled and held a sixth hearing for November 12, 2020. A seventh hearing occurred on January 14, 2021. An eighth hearing occurred on April 8, 2021. A ninth hearing occurred on June 24, 2021. A tenth hearing is scheduled for October 14, 2021. The Court has indicated that it expects to render a decision on this matter by the end of February 2022. We believe that there are valid defenses to the claims raised by the Korean tax authorities and that LGE’s claims are without merit. We intend to vigorously defend ourselves against these claims. In the event that we do not ultimately prevail in our appeal in the Korean courts, any payments to LGE with respect to withholding tax imposed on LGE by the Korean tax authorities as described in the previous paragraph would be recorded as additional income tax expense on the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) , in the period in which we do not ultimately prevail. Immersion Software Ireland Limited v. Marquardt GMBH On August 3 , 2021, we filed an arbitration demand with the American Arbitration Association against Marquardt GmbH (“Marquardt”), one of our licensees in the automotive market. The arbitration demand arises out of that certain Amended and Restated Patent License Agreement (the “Marquardt License”), effective as of January 1, 2018, between us as licensor and Marquardt, as licensee. Pursuant to the arbitration demand, we are demanding that Marquardt cure its breach of the Marquardt License and pay all royalties currently owed under the Marquardt License. The last royalty report we have received from Marquardt was for the third quarter of calendar year 2020 in which Marquardt reported approximately $0.5 million in royalties but did not pay such royalties. Further, since that date, we have not received any other royalty reports or royalty payments from Marquardt. The term of the Marquardt License expires by its terms on December 31, 2023. As a result of Marquardt’s breach of the Marquardt License, per unit royalties and applicable interest fees, in the amount of a definite sum to be determined, are currently past due. Pursuant to the terms of the Marquardt License, we are requesting arbitration by a single arbitrator in Madison County, New York.

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION	6 Months Ended
STOCK-BASED COMPENSATION	Jun. 30, 2021
Share-based Payment Arrangement [Abstract]
STOCK-BASED COMPENSATION	STOCK-BASED COMPENSATION Stock Options and Awards Our equity incentive program is a long-term retention program that is intended to attract, retain, and provide incentives for employees, consultants, officers, and directors and to align stockholder and employee interests. We may grant time-based options, market condition-based options, stock appreciation rights, restricted stock (“RSAs”), restricted stock units (“RSUs”), performance shares, market condition-based performance restricted stock units (“PSUs”), and other stock-based equity awards to employees, officers, directors, and consultants. Under this program, stock options may be granted at prices not less than the fair market value on the date of grant for stock options. Stock options generally vest over four years and expire seven years from the grant date. Market condition-based options are subject to a market condition whereby the closing price of our common stock must exceed a certain level for a number of trading days within a specified time frame or the options will be canceled before the expiration of the options. RSAs generally vest over one year. RSUs generally vest over three years. Awards granted other than a stock option or stock appreciation right shall reduce the common stock shares available for grant by 1.75 shares for every share issued. A summary of our equity incentive program is as follows (in thousands): June 30, Common stock shares available for grant (1) — Stock options outstanding 375 PSUs outstanding 190 RSUs outstanding 364 RSAs outstanding — (1) We granted equity awards under the 2011 Equity Incentive Plan (the "2011 Plan") from July 2011 through April 2021. The 2011 Plan expired on April 5, 2021, and the remaining 3,708,238 authorized shares were cancelled on the 2011 Plan expiration date. We do not have an active equity incentive plan as of June 30, 2021. Time-Based Stock Options The following summarizes activities for the time-based stock options for the six months ended June 30, 2021 (in thousands except for weighted average exercise price per share and weighted average remaining contractual life data): Number of Shares Weighted Average Weighted Average Aggregate Outstanding at December 31, 2020 828 $ 8.16 4.36 $ 2,628 Exercised (326) $ 8.79 Canceled or expired (127) $ 7.46 Outstanding at June 30, 2021 375 $ 7.85 4.80 $ 431 Vested and expected to vest at June 30, 2021 375 $ 7.85 4.80 $ 431 Exercisable at June 30, 2021 158 $ 8.21 4.24 $ 161 Aggregate intrinsic value is the difference between the closing price on the last trading day in June 2021 and the exercise price, multiplied by the number of in-the-money stock options. Restricted Stock Units The following summarizes RSU activities for the six months ended June 30, 2021 (in thousands except for weighted average grant date fair value and weighted average remaining contractual life data): Number of Restricted Stock Units Weighted Average Grant Date Fair Value Weighted Average Aggregate Outstanding at December 31, 2020 802 $ 6.98 1.00 $ 9,057 Released (310) $ 7.45 Forfeited (128) $ 6.63 Outstanding at June 30, 2021 364 $ 6.71 1.01 $ 3,197 Restricted Stock Awards The following summarizes RSA activities for the six months ended June 30, 2021 (in thousands except for weighted average grant date fair value and weighted average remaining recognition period): Number of Restricted Stock Awards Weighted Average Grant Date Fair Value Weighted Average Remaining Recognition Period Outstanding at December 31, 2020 130 $ 6.53 0.45 Granted — $ — Released (130) $ 6.53 Forfeited — $ — Outstanding at June 30, 2021 — $ — 0.00 Market Condition-Based Restricted Stock Units In the fourth quarter of 2020, we granted 250,000 shares of PSUs to our executives. Each PSU represents the right to one share of our common stock with vesting subject to: (a) the achievement of specified levels of the volume weighted average closing prices of our common stock during any one hundred (100) day-period between November 10, 2020 and November 10, 2025, subject to certification by the Compensation Committee (“Performance Milestones”); and (b) continued employment with us through the later of each achievement date or service vesting date, which occurs over a four (4) year-period commencing on November 10, 2020. The Performance Milestones of the PSUs were fully achieved, subject to final certification by the Compensation Committee. The following summarizes PSU activities for the six months ended June 30, 2021 (in thousands except for weighted average grant date fair value and weighted average remaining recognition period): Number of Market Condition-Based Restricted Stock Units Weighted Average Grant Date Fair Value Weighted Average Remaining Recognition Period Outstanding at December 31, 2020 250 $ 6.20 2.08 Granted — $ — Released — $ — Forfeited (60) $ 6.20 Outstanding at June 30, 2021 190 $ 6.20 1.58 Employee Stock Purchase Plan Under our 1999 Employee Stock Purchase Plan ("ESPP"), eligible employees may purchase common stock through payroll deductions at a purchase price of 85% of the lower of the fair market value of our common stock at the beginning of the offering period or the purchase date. Participants may not purchase more than 2,000 shares in a six months offering period or purchase stock having a value greater than $25,000 in any calendar year as measured at the beginning of the offering period. A total of 1.0 million shares of common stock has been reserved for issuance under the ESPP. During the six months ended June 30, 2021, 15,543 shares were purchased under the ESPP. As of June 30, 2021, 215,338 shares were available for future purchase under the ESPP. Stock-based Compensation Expense The following table summarizes stock-based compensation expenses recognized for the three and six months ended June 30, 2021 and 2020 (in thousands): Three Months Ended Six Months Ended 2021 2020 2021 2020 Stock options $ 179 $ 298 $ 194 $ 553 RSUs, RSAs and PSUs 852 1,056 1,349 1,518 Employee stock purchase plan 20 11 39 23 Total $ 1,051 $ 1,365 $ 1,582 $ 2,094 Sales and marketing $ 313 $ 343 $ 537 $ 388 Research and development 217 251 535 420 General and administrative 521 771 510 1,286 Total $ 1,051 $ 1,365 $ 1,582 $ 2,094 We use the Black-Scholes-Merton option pricing model for our time-based options, single-option approach to determine the fair value of standard stock options. All share-based payment awards are amortized on a straight-line basis over the requisite service periods of the awards, which are generally the vesting periods. The determination of the fair value of share-based awards on the date of grant using an option pricing model is affected by our stock price as well as assumptions regarding a number of complex and subjective variables. These variables include actual and projected employee stock option exercise behaviors that impact the expected term, our expected stock price volatility over the term of the awards, risk-free interest rate, and expected dividend. We did not grant stock options during the six months ended June 30, 2021. As of June 30, 2021, there were $4.1 million of unrecognized compensation costs, adjusted for estimated forfeitures, related to non-vested stock options, RSAs and RSUs. This unrecognized compensation cost will be recognized over an estimated weighted-average period of approximately 1.8 years. Total unrecognized compensation cost will be adjusted for future changes in estimated forfeitures.

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	6 Months Ended
STOCKHOLDERS' EQUITY	Jun. 30, 2021
Equity [Abstract]
STOCKHOLDERS' EQUITY	STOCKHOLDERS’ EQUITY Stock Offering On February 3, 2021, we filed an universal shelf registration statement on Form S-3 with the Securities and Exchange Commission which provided us with the financial flexibility to raise up to $250 million of capital. We intend to use the net proceeds from the sale of the securities offered by this prospectus for working capital and other general corporate purposes, and we may use a portion of any net proceeds for investment in complementary businesses or alternative currencies. On February 11, 2021, we entered into an equity distribution agreement (the "February 2021 Distribution Agreement") with an investment banking firm to issue and sell shares of our common stock having an aggregated offering price of up to $50 million. Under the terms of the February 2021 Distribution Agreement, we are obligated to pay 2.25% commission on the gross sales proceeds from common stock sold and customary indemnification rights and the reimbursement of legal fees and disbursements. During the first quarter of 2021, we sold 3.3 million shares of our common stock pursuant to the February 2021 Distribution Agreement and we received net proceeds of $35.9 million from the offering net of $1.2 million of commissions and other offering costs. We terminated the February 2021 Distribution Agreement on March 5, 2021. Stock Repurchase Program On November 1, 2007, our Board of Directors (the “Board”) authorized the repurchase of up to $50.0 million of our common stock (the “Stock Repurchase Program”). In addition, on October 22, 2014, the Board authorized another $30.0 million under the Stock Repurchase Program. As of June 30, 2020, we repurchased the maximum amount of shares of common stock available under the Stock Repurchase Program and no longer have any amount available for repurchase under the Stock Repurchase Plan. During the three months ended June 30, 2020, we repurchased approximately 2.9 million shares for approximately $18.7 million at an average cost of $6.39 per share. During the six months ended June 30, 2020, we repurchased approximately 4.9 million shares for approximately $30.6 million at an average cost of $6.39 per share.

INCOME TAXES

INCOME TAXES	6 Months Ended
INCOME TAXES	Jun. 30, 2021
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES Income tax provision consisted of the following (in thousands, except for effective tax rate percentage): Three Months Ended Six Months Ended 2021 2020 2021 2020 Income (loss) before provision for income taxes $ 5,847 $ (671) $ 8,024 $ (5,447) Provision for income taxes 506 41 647 93 Effective tax rate 8.7 % (6.1) % 8.1 % (1.7) % The provision for income tax for the three months and six months ended June 30, 2021 and 2020, respectively, resulted primarily from estimated foreign taxes included in the calculation of the effective tax rate. We continue to carry a full valuation allowance on our U.S. federal and State as well as Canada federal deferred tax assets. The effective tax rate is lower than statutory tax rate is mainly due to the benefit recorded on deferred tax assets utilized in current year for the U.S. federal and state jurisdictions. As of June 30, 2021, we had unrecognized tax benefits under ASC 740 Income Taxes of approximately $4.5 million and applicable interest of $0. The total amount of unrecognized tax benefits that would affect our effective tax rate, if recognized, is $0. Our policy is to account for interest and penalties related to uncertain tax positions as a component of income tax provision. We do not expect to have any significant changes to unrecognized tax benefits during the next twelve months. As of June 30, 2021, we had net deferred income tax assets of $2.7 million and deferred income tax liabilities of $0.4 million. Because we have net operating loss and credit carryforwards, there are open statutes of limitations in which federal, state, and foreign taxing authorities may examine our tax returns for all years from 2001 through the current period. Currently we are under examination by the Internal Revenue Services for tax year 2018 and California Franchise Tax Board for tax years 2017 to 2019.

NET INCOME (LOSS) PER SHARE

NET INCOME (LOSS) PER SHARE	6 Months Ended
NET INCOME (LOSS) PER SHARE	Jun. 30, 2021
Earnings Per Share [Abstract]
NET INCOME (LOSS) PER SHARE	NET INCOME (LOSS) PER SHAREBasic net income (loss) per share is computed using the weighted average number of shares of common stock outstanding during the period. Diluted net income (loss) per share is computed using the weighted average number of shares of common stock, adjusted for any dilutive effect of potential common stock. Potential common stock, computed using the treasury stock method, includes stock options, RSUs, RSAs and ESPP. The following is a reconciliation of the numerators and denominators used in computing basic and diluted net income (loss) per share (in thousands, except per share amounts): Three Months Ended Six Months Ended 2021 2020 2021 2020 Numerator: Net income (loss) $ 5,341 $ (712) $ 7,377 $ (5,540) Denominator: Weighted-average common stock outstanding, basic 30,982 27,634 29,787 29,320 Dilutive effect of potential common shares: Stock options, stock awards and ESPP 265 — 466 — Total shares, diluted 31,247 27,634 30,253 29,320 Basic net income (loss) per share $ 0.17 $ (0.03) $ 0.25 $ (0.19) Diluted net income (loss) per share $ 0.17 $ (0.03) $ 0.24 $ (0.19) We include the underlying market condition stock awards in the calculation of diluted earnings per share if the performance condition has been satisfied as of the end of the reporting period and exclude stock equity awards if the performance condition has not been met. For the three months ended June 30, 2021, we had stock options, RSUs, PSUs and RSAs outstanding that could potentially dilute basic earnings per share in the future, but these were excluded from the computation of diluted net income (loss) per share because their effect would have been anti-dilutive. These outstanding securities consisted of the following (in thousands): Three Months Ended Six Months Ended 2021 2020 2021 2020 Stock options 490 1,262 115 1,370 RSUs and RSAs — 376 — 87 490 1,638 115 1,457

LEASES

LEASES	6 Months Ended
LEASES	Jun. 30, 2021
Leases [Abstract]
LEASES	LEASES We lease our office space under lease arrangements with expiration dates on or before February 29, 2024. We recognize lease expense on a straight-line basis over the lease term. Leases with an initial term of 12 months or less are not recorded on the Condensed Consolidated Balance Sheets . We combine lease and non-lease components for new and reassessed leases. We apply discount rates to operating leases using a portfolio approach. Below is a summary of our right-of-use assets (“ROU”) assets and lease liabilities as of June 30, 2021 and December 31, 2020, respectively (in thousands): Balance Sheets Classification June 30, December 31, 2020 Assets Right-of-use assets Other assets $ 1,236 $ 1,607 Liabilities Operating lease liabilities - current Other current liabilities 1,289 1,382 Operating lease liabilities - long-term Other long-term liabilities 1,076 1,677 Total lease liabilities $ 2,365 $ 3,059 On January 31, 2020, we entered into an agreement to lease approximately 5,000 square feet of office space in San Francisco, California (“SF Facility”). This facility is used for administrative functions. The lease commenced in the first quarter of 2020 and expires in 2022. In the first quarter of 2020, we recorded a lease liability of $0.6 million, which represents the present value of the lease payments using an estimated incremental borrowing rate of 3.50%. We also recognized ROU of $0.6 million which represents our right to use an underlying asset for the lease term. Operating lease ROU assets and liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. As a result of COVID-19, we implemented work-from-home policy in the first quarter of 2020. Our San Francisco office has been closed since the first quarter of 2020 and we expect our San Francisco-based employees to continue to work-from-home in the foreseeable future. We have been actively seeking a sublease tenant for the SF Facility without success since early 2020. In the fourth quarter of 2020, we recorded $0.3 million impairment charge to the SF Facility ROU asset. In the second quarter of 2021, we recorded an additional $32,000 impairment charge to the SF Facility ROU asset. On November 12, 2014, we entered into an amendment to the lease of approximately 42,000 square feet office space in San Jose, California facilities (“SJ Facility”). The lease commenced in May 2015 and expires as of April 2023. On March 12, 2020, we entered into a sublease agreement with Neato Robotics, Inc. (“Neato”) for the SJ Facility. This sublease commenced in June 2020 and ends on April 30, 2023 which is the lease termination date of the original SJ Facility lease. In accordance with provisions of ASC 842 Lease s (“ASC 842”), we treated the sublease as a separate lease as we were not relieved of the primary obligation under the original lease. We continue to account for the original SJ Facility, as a lessee, in the same manner as prior to the commencement date of the sublease. We accounted for the sublease as a lessor of the lease. We classified the sublease as an operating lease as it did not meet the criteria of a Sale-Type or Direct Financing lease. At the commencement date of the sublease, we recognized initial direct costs of $0.3 million. These deferred costs will be amortized over the terms of the sublease payments. As of June 30, 2021, $0.1 million was reported in Prepaid expenses and other current assets and $0.1 million was reported in Other assets on our Condensed Consolidated Balance Sheets . We recognize operating lease expense and lease payments from the sublease, on a straight-line basis, in our Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) over the lease terms. During the three and six months ended June 30, 2021, and 2020, our net operating lease expenses are as follows (in thousands): Three Months Ended Six Months Ended 2021 2020 2021 2020 Operating lease cost $ 199 $ 301 $ 616 $ 573 Sublease income (257) (70) (515) (70) Net lease cost (income) $ (58) $ 231 $ 101 $ 503 The table below provides supplemental information related to operating leases for the six months ended June 30, 2021 and 2020 (in thousands except for lease term): Six Months Ended 2021 2020 Cash paid within operating cash flow $ 740 $ 349 Weighted average lease terms (in years) 1.8 2.7 Weighted average discount rate N/A 3.5 % Minimum future lease payment obligations for our operating leases as of June 30, 2021 are as follows (in thousands): For the Years Ending December 31, Remainder of 2021 $ 756 2022 1,228 2023 464 2024 26 Total $ 2,474 Future lease payments as of June 30, 2021 from our sublease agreement are as follows (in thousands): For the Years Ending December 31, Remainder of 2021 $ 529 2022 1,077 2023 351 Total $ 1,957

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	6 Months Ended
SUBSEQUENT EVENTS	Jun. 30, 2021
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENT On July 6, 2021, we entered into an equity distribution agreement (the "July 2021 Distribution Agreement") with an investment banking firm to issue and sell shares of our common stock having an aggregated offering price of up to $60 million. Under the July 2021 Distribution Agreement, we will set the parameters for the sale of shares, including the number of shares to be issued, the time period during which sales are requested to be made, limitations on the number of shares that may be sold in any one trading day and any minimum price below which sales may not be made. Subject to the terms and conditions of the July 2021 Distribution Agreement, the investment banker may sell the shares by methods deemed to be an “at the market offering” as defined in Rule 415(a)(4) promulgated under the Securities Act of 1933, as amended, including sales made through the Nasdaq Global Select Market or on any other existing trading market for the common stock. We are obligated to pay 2.25% commission on the gross sales proceeds from common stock sold and customary indemnification rights and the reimbursement of legal fees and disbursements. The July 2021 Distribution Agreement may be terminated by either party upon prior written notice to the other party, or at any time under certain circumstances, including but not limited to the occurrence of a material adverse change in Immersion. We are not obligated to sell any shares under the July 2021 Distribution Agreement . As of August 12, 2021, we sold 1.9 million shares of our common stock pursuant to the July 2021 Distribution Agreement and we received net proceeds of approximately $14.5 million from the offering after deducting commissions and other estimated offering expense.

SIGNIFICANT ACCOUNTING POLICI_2

SIGNIFICANT ACCOUNTING POLICIES (Policies)	6 Months Ended
SIGNIFICANT ACCOUNTING POLICIES (Policies)	Jun. 30, 2021
Accounting Policies [Abstract]
Description of Business	Description of Business Immersion Corporation (the "Company", "Immersion", "we" or "us") was incorporated in 1993 in California and reincorporated in Delaware in 1999. We focus on the creation, design, development, and licensing of innovative haptic technologies that allow people to use their sense of touch more fully as they engage with products and experience the digital world around them. We have adopted a business model under which it provides advanced tactile software, related tools, technical assistance designed to help integrate our patented technology into our customers’ products or enhance the functionality of our patented technology to certain customers, and offers licenses to our patented technology to other customers.
Principles of Consolidation and Basis of Presentation	Principles of Consolidation and Basis of Presentation The accompanying condensed consolidated financial statements include the accounts of Immersion and our wholly-owned subsidiaries. All intercompany accounts, transactions, and balances have been eliminated in consolidation. The accompanying condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X. Accordingly, these condensed consolidated financial statements do not include all information and footnotes necessary for a complete presentation of the financial position, results of operations, and cash flows, in conformity with U.S. GAAP and should be read in conjunction with our audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020. In the opinion of management, all adjustments consisting of only normal and recurring items necessary for the fair presentation of the financial position and results of operations for the interim periods presented have been included.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements and related disclosures requires management to make estimates and assumptions that affect the reported amounts of the condensed consolidated financial statements. Significant estimates include revenue recognition, useful lives of property and equipment, valuation of income taxes including uncertain tax provisions, stock-based compensation and income taxes. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the results to be expected for the full year.
Segment Information	Segment Information We develop, license, and support a wide range of software and IP that more fully engage users’ senses of touch when operating digital devices. We focus on the following target application areas: mobile devices, wearables, consumer, mobile entertainment and other content; console gaming; automotive; medical; and commercial. We manage these application areas in one operating and reporting segment with only one set of management, development, and administrative personnel. Our chief operating decision maker (“CODM”) is the Chief Executive Officer. The CODM approves budgets and allocates resources to and assesses the performance of our business using information about our revenue and operating loss. There is only one segment that is reported to management.
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In December 2019, the Financial Accounting Standard Board (the "FASB") issued Accounting Standard Update No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (ASU 2019-12), which enhances and simplifies various aspects of the income tax accounting guidance, including requirements such as tax basis step-up in goodwill obtained in a transaction that is not a business combination, ownership changes in investments, and interim-period accounting for enacted changes in tax law. The amendment is effective for public companies with fiscal years beginning after December 15, 2020; early adoption is permitted. We adopted this new guidance in the first quarter of 2021. This adoption did not have material impact on our condensed consolidated financial statements.

REVENUE RECOGNITION (Tables)

REVENUE RECOGNITION (Tables)	6 Months Ended
REVENUE RECOGNITION (Tables)	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Disaggregated revenue	The following table presents the disaggregation of our revenue for the three and six months ended June 30, 2021 and 2020 (in thousands). Three Months Ended Six Months Ended 2021 2020 2021 2020 Fixed fee license revenue $ 1,824 $ 1,292 $ 3,099 $ 2,578 Per-unit royalty revenue 9,057 4,301 14,850 9,197 Total royalty and license revenue 10,881 5,593 17,949 11,775 Development, services, and other revenue 129 75 220 150 Total revenue $ 11,010 $ 5,668 $ 18,169 $ 11,925

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	6 Months Ended
FAIR VALUE MEASUREMENTS (Tables)	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Schedule of financial instruments measured at fair value on recurring basis	Financial instruments measured at fair value on a recurring basis as of June 30, 2021 and December 31, 2020 are classified based on the valuation technique in the table below (in thousands): June 30, 2021 Fair Value Measurements Using Quoted Prices Significant Significant Total Assets: Money market accounts $ 70,620 $ — $ — $ 70,620 Total assets at fair value (1) $ 70,620 $ — $ — $ 70,620 (1) The above table excludes $36.7 million of cash held in banks. December 31, 2020 Fair Value Measurements Using Quoted Prices Significant Significant Total Assets: Money market accounts 45,614 $ — $ — $ 45,614 Total assets at fair value (2) $ 45,614 $ — $ — 0 $ 45,614 (2) The above table excludes $13.9 million of cash held in banks.

BALANCE SHEET DETAILS (Tables)

BALANCE SHEET DETAILS (Tables)	6 Months Ended
BALANCE SHEET DETAILS (Tables)	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of cash and cash equivalents	Our cash and cash equivalent balances were as follows (in thousands): June 30, December 31, Cash $ 36,654 $ 13,908 Money market funds 70,620 45,614 Cash and cash equivalents $ 107,274 $ 59,522
Schedule of accounts and other receivables	Accounts and other receivables consisted of the following (in thousands): June 30, December 31, Trade accounts receivable $ 2,193 $ 1,618 Other receivables 719 600 Accounts and other receivables $ 2,912 $ 2,218
Schedule of prepaid expenses and other current assets	Prepaid expenses and other current assets consisted of the following (in thousands): June 30, December 31, Prepaid expenses 882 816 Contract assets - current 10,821 11,623 Other current assets 239 171 Prepaid expenses and other current assets 11,942 12,610
Schedule of other assets, net	Other assets consisted of the following (in thousands): June 30, December 31, Contract assets - long-term $ 3,172 $ 4,596 Right-of-use ("ROU") assets 1,236 1,607 Deferred tax assets 2,659 2,659 Other assets 155 138 Total other assets $ 7,222 $ 9,000
Components of other current liabilities	Other current liabilities are as follows (in thousands): June 30, December 31, Lease liabilities - current 1,289 1,382 Other current liabilities 1,683 1,075 Total other current liabilities $ 2,972 $ 2,457

STOCK-BASED COMPENSATION (Table

STOCK-BASED COMPENSATION (Tables)	6 Months Ended
STOCK-BASED COMPENSATION (Tables)	Jun. 30, 2021
Share-based Payment Arrangement [Abstract]
Summary of equity incentive program	A summary of our equity incentive program is as follows (in thousands): June 30, Common stock shares available for grant (1) — Stock options outstanding 375 PSUs outstanding 190 RSUs outstanding 364 RSAs outstanding — (1) We granted equity awards under the 2011 Equity Incentive Plan (the "2011 Plan") from July 2011 through April 2021. The 2011 Plan expired on April 5, 2021, and the remaining 3,708,238 authorized shares were cancelled on the 2011 Plan expiration date. We do not have an active equity incentive plan as of June 30, 2021.
Summary of time-based stock options	The following summarizes activities for the time-based stock options for the six months ended June 30, 2021 (in thousands except for weighted average exercise price per share and weighted average remaining contractual life data): Number of Shares Weighted Average Weighted Average Aggregate Outstanding at December 31, 2020 828 $ 8.16 4.36 $ 2,628 Exercised (326) $ 8.79 Canceled or expired (127) $ 7.46 Outstanding at June 30, 2021 375 $ 7.85 4.80 $ 431 Vested and expected to vest at June 30, 2021 375 $ 7.85 4.80 $ 431 Exercisable at June 30, 2021 158 $ 8.21 4.24 $ 161
Summary of restricted stock units activities	The following summarizes RSU activities for the six months ended June 30, 2021 (in thousands except for weighted average grant date fair value and weighted average remaining contractual life data): Number of Restricted Stock Units Weighted Average Grant Date Fair Value Weighted Average Aggregate Outstanding at December 31, 2020 802 $ 6.98 1.00 $ 9,057 Released (310) $ 7.45 Forfeited (128) $ 6.63 Outstanding at June 30, 2021 364 $ 6.71 1.01 $ 3,197
Summary of restricted stock awards activities	The following summarizes RSA activities for the six months ended June 30, 2021 (in thousands except for weighted average grant date fair value and weighted average remaining recognition period): Number of Restricted Stock Awards Weighted Average Grant Date Fair Value Weighted Average Remaining Recognition Period Outstanding at December 31, 2020 130 $ 6.53 0.45 Granted — $ — Released (130) $ 6.53 Forfeited — $ — Outstanding at June 30, 2021 — $ — 0.00
Summary of PSU activities	The following summarizes PSU activities for the six months ended June 30, 2021 (in thousands except for weighted average grant date fair value and weighted average remaining recognition period): Number of Market Condition-Based Restricted Stock Units Weighted Average Grant Date Fair Value Weighted Average Remaining Recognition Period Outstanding at December 31, 2020 250 $ 6.20 2.08 Granted — $ — Released — $ — Forfeited (60) $ 6.20 Outstanding at June 30, 2021 190 $ 6.20 1.58
Summary of stock-based compensation expenses	The following table summarizes stock-based compensation expenses recognized for the three and six months ended June 30, 2021 and 2020 (in thousands): Three Months Ended Six Months Ended 2021 2020 2021 2020 Stock options $ 179 $ 298 $ 194 $ 553 RSUs, RSAs and PSUs 852 1,056 1,349 1,518 Employee stock purchase plan 20 11 39 23 Total $ 1,051 $ 1,365 $ 1,582 $ 2,094 Sales and marketing $ 313 $ 343 $ 537 $ 388 Research and development 217 251 535 420 General and administrative 521 771 510 1,286 Total $ 1,051 $ 1,365 $ 1,582 $ 2,094

INCOME TAXES (Tables)

INCOME TAXES (Tables)	6 Months Ended
INCOME TAXES (Tables)	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Schedule of income tax provisions	Income tax provision consisted of the following (in thousands, except for effective tax rate percentage): Three Months Ended Six Months Ended 2021 2020 2021 2020 Income (loss) before provision for income taxes $ 5,847 $ (671) $ 8,024 $ (5,447) Provision for income taxes 506 41 647 93 Effective tax rate 8.7 % (6.1) % 8.1 % (1.7) %

NET INCOME (LOSS) PER SHARE (Ta

NET INCOME (LOSS) PER SHARE (Tables)	6 Months Ended
NET INCOME (LOSS) PER SHARE (Tables)	Jun. 30, 2021
Earnings Per Share [Abstract]
Reconciliation of the numerators and denominators used in computing basic and diluted net income (loss) per share	The following is a reconciliation of the numerators and denominators used in computing basic and diluted net income (loss) per share (in thousands, except per share amounts): Three Months Ended Six Months Ended 2021 2020 2021 2020 Numerator: Net income (loss) $ 5,341 $ (712) $ 7,377 $ (5,540) Denominator: Weighted-average common stock outstanding, basic 30,982 27,634 29,787 29,320 Dilutive effect of potential common shares: Stock options, stock awards and ESPP 265 — 466 — Total shares, diluted 31,247 27,634 30,253 29,320 Basic net income (loss) per share $ 0.17 $ (0.03) $ 0.25 $ (0.19) Diluted net income (loss) per share $ 0.17 $ (0.03) $ 0.24 $ (0.19)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	Three Months Ended Six Months Ended 2021 2020 2021 2020 Stock options 490 1,262 115 1,370 RSUs and RSAs — 376 — 87 490 1,638 115 1,457

LEASES (Tables)

LEASES (Tables)	6 Months Ended
LEASES (Tables)	Jun. 30, 2021
Leases [Abstract]
Summary of ROU assets and lease liabilities	Below is a summary of our right-of-use assets (“ROU”) assets and lease liabilities as of June 30, 2021 and December 31, 2020, respectively (in thousands): Balance Sheets Classification June 30, December 31, 2020 Assets Right-of-use assets Other assets $ 1,236 $ 1,607 Liabilities Operating lease liabilities - current Other current liabilities 1,289 1,382 Operating lease liabilities - long-term Other long-term liabilities 1,076 1,677 Total lease liabilities $ 2,365 $ 3,059
Schedule of supplemental information related to operating leases and expenses	During the three and six months ended June 30, 2021, and 2020, our net operating lease expenses are as follows (in thousands): Three Months Ended Six Months Ended 2021 2020 2021 2020 Operating lease cost $ 199 $ 301 $ 616 $ 573 Sublease income (257) (70) (515) (70) Net lease cost (income) $ (58) $ 231 $ 101 $ 503
Schedule of minimum future lease payment obligations	The table below provides supplemental information related to operating leases for the six months ended June 30, 2021 and 2020 (in thousands except for lease term): Six Months Ended 2021 2020 Cash paid within operating cash flow $ 740 $ 349 Weighted average lease terms (in years) 1.8 2.7 Weighted average discount rate N/A 3.5 % Minimum future lease payment obligations for our operating leases as of June 30, 2021 are as follows (in thousands): For the Years Ending December 31, Remainder of 2021 $ 756 2022 1,228 2023 464 2024 26 Total $ 2,474
Schedule of sublease income expected to be received	Future lease payments as of June 30, 2021 from our sublease agreement are as follows (in thousands): For the Years Ending December 31, Remainder of 2021 $ 529 2022 1,077 2023 351 Total $ 1,957

SIGNIFICANT ACCOUNTING POLICI_3

SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Millions	3 Months Ended	6 Months Ended
SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Millions	Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)Segment
Accounting Policies [Abstract]
IMMR:GovernmentSubsidyRecognized \| $	$ 0.2	$ 0.2
Number of operating segments		1
Number of reporting segments		1

REVENUE RECOGNITION - NARRATIVE

REVENUE RECOGNITION - NARRATIVE (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Contract with customer, asset, current	$ 10,821		$ 10,821	$ 11,623
Contract assets - long-term	3,172		3,172	$ 4,596
Increase (Decrease) in Contract with Customer, Asset			(2,200)
Royalty Revenue, Adjustment	2,000	$ (20)
Revenue, remaining performance obligation	24,000		24,000
Capitalized contract costs during the period	$ 100		$ 200

REVENUE RECOGNITION - DISAGGREG

REVENUE RECOGNITION - DISAGGREGATED REVENUE (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 11,010	$ 5,668	$ 18,169	$ 11,925
Fixed fee license revenue
Disaggregation of Revenue [Line Items]
Revenues	1,824	1,292	3,099	2,578
Per-unit royalty revenue
Disaggregation of Revenue [Line Items]
Revenues	9,057	4,301	14,850	9,197
Total royalty and license revenue
Disaggregation of Revenue [Line Items]
Revenues	10,881	5,593	17,949	11,775
Development, services, and other revenue
Disaggregation of Revenue [Line Items]
Revenues	$ 129	$ 75	$ 220	$ 150

REVENUE RECOGNITION - CONTRACTE

REVENUE RECOGNITION - CONTRACTED REVENUE (Details) $ in Millions	Jun. 30, 2021USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation	$ 24
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation	$ 12
Revenue, remaining performance obligation, period	3 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation	$ 12
Revenue, remaining performance obligation, period

FAIR VALUE MEASUREMENTS - SCHED

FAIR VALUE MEASUREMENTS - SCHEDULE OF FINANCIAL INSTRUMENTS MEASURED AT FAIR VALUE ON RECURRING BASIS (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash held in banks	$ 36,654	$ 13,908
Fair value, measurements, recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	70,620	45,614
Fair value, measurements, recurring \| Money market accounts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market accounts	70,620	45,614
Fair value, measurements, recurring \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	70,620	45,614
Fair value, measurements, recurring \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Money market accounts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market accounts	70,620	45,614
Fair value, measurements, recurring \| Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	0	0
Fair value, measurements, recurring \| Significant Other Observable Inputs (Level 2) \| Money market accounts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market accounts	0	0
Fair value, measurements, recurring \| Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	0	0
Fair value, measurements, recurring \| Significant Unobservable Inputs (Level 3) \| Money market accounts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market accounts	$ 0	$ 0

BALANCE SHEET DETAILS - Cash an

BALANCE SHEET DETAILS - Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Cash and cash equivalents:
Cash	$ 36,654	$ 13,908
Money market funds	70,620	45,614
Cash and cash equivalents	$ 107,274	$ 59,522

BALANCE SHEET DETAILS - Account

BALANCE SHEET DETAILS - Accounts and Other Receivables (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Receivables [Abstract]
Trade accounts receivable	$ 2,193	$ 1,618
Other receivables	719	600
Accounts and other receivables	$ 2,912	$ 2,218

BALANCE SHEET DETAILS - Other A

BALANCE SHEET DETAILS - Other Assets, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Other Assets, Net [Abstract]
Contract assets - long-term	$ 3,172	$ 4,596
Right-of-use ("ROU") assets	1,236	1,607
Deferred tax assets	2,659	2,659
Other assets	155	138
Total other assets	$ 7,222	$ 9,000

BALANCE SHEET DETAILS - Other C

BALANCE SHEET DETAILS - Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Other Liabilities, Current [Abstract]
Lease liabilities - current	$ 1,289	$ 1,382
Other current liabilities	1,683	1,075
Total other current liabilities	$ 2,972	$ 2,457

BALANCE SHEETS DETAILS Prepaid

BALANCE SHEETS DETAILS Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid Expense	$ 882	$ 816
Contract with Customer, Asset, after Allowance for Credit Loss, Current	10,821	11,623
Other Assets, Current	239	171
Prepaid expenses and other current assets	$ 11,942	$ 12,610

CONTINGENCIES - NARRATIVE (Deta

CONTINGENCIES - NARRATIVE (Details)	Apr. 08, 2020USD ($)	Apr. 08, 2020KRW (₩)	Mar. 27, 2019USD ($)	Mar. 27, 2019KRW (₩)	Jun. 30, 2021USD ($)	Dec. 31, 2020USD ($)	Sep. 30, 2020USD ($)	Mar. 31, 2019USD ($)
Loss Contingencies [Line Items]
Deposits Assets, Noncurrent					$ 12,353,000	$ 12,571,000		$ 6,900,000
Accrued Royalties							$ 500,000
LGE
Loss Contingencies [Line Items]
Payments for Deposits	$ 5,000,000	₩ 5,916,845,454
Samsung vs. Immersion \| Withholding taxes on royalty payments
Loss Contingencies [Line Items]
Litigation, amount awarded to other party			$ 6,900,000	₩ 7,841,324,165
Litigation, arbitration costs			$ 871,454

STOCK-BASED COMPENSATION - NARR

STOCK-BASED COMPENSATION - NARRATIVE (Details)	3 Months Ended	6 Months Ended
STOCK-BASED COMPENSATION - NARRATIVE (Details)	Dec. 31, 2020shares	Jun. 30, 2021USD ($)shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of available shares consumed for each restricted stock and restricted stock units issued		1.75
Restricted stock outstanding (in shares)	802,000
Shares available for purchase (in shares)		215,338
Unrecognized compensation cost \| $		$ 4,100,000
Unrecognized compensation cost, recognized over an estimated weighted-average period		1 year 9 months 18 days
Stock options outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based payment award vesting period		4 years
Stock-based payment award expiration period		7 years
RSAs outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based payment award vesting period		1 year
Granted (in shares)		0
Restricted stock outstanding (in shares)	130,000	0
RSUs outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based payment award vesting period		3 years
Restricted stock outstanding (in shares)		364,000
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of fair market value on the purchase date		85.00%
Maximum number of shares per employee (in shares)		2,000
Employee stock purchase plan offering period		6 months
Maximum value of shares per employee \| $		$ 25,000
Common stock reserved for issuance (in shares)		1,000,000
Purchases under ESPP (in shares)		15,543
Market Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	250,000

STOCK-BASED COMPENSATION - SUMM

STOCK-BASED COMPENSATION - SUMMARY OF EQUITY INCENTIVE PROGRAM (Details) - shares	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares available for grant (in shares)	0
Standard and market condition-based stock options outstanding (in shares)	375,000
Non-option equity instruments outstanding (in shares)		802,000
2011 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares cancelled during period (in shares)	3,708,238
Stock options outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Standard and market condition-based stock options outstanding (in shares)	375,000	828,000
PSUs outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments outstanding (in shares)	190,000	250,000
Authorized shares cancelled during period (in shares)	0
RSUs outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments outstanding (in shares)	364,000
Authorized shares cancelled during period (in shares)	310,000
RSAs outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments outstanding (in shares)	0	130,000
Authorized shares cancelled during period (in shares)	130,000

STOCK-BASED COMPENSATION - SU_2

STOCK-BASED COMPENSATION - SUMMARY OF TIME-BASED STOCK OPTIONS (Details) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021USD ($)$ / sharesshares	Dec. 31, 2020USD ($)$ / sharesshares
Number of Shares Underlying Stock Options
Ending outstanding balance (in shares)	375
Weighted Average Exercise Price Per Share
Weighted average remaining contractual life, Outstanding	4 years 9 months 18 days	4 years 4 months 9 days
Stock options outstanding
Number of Shares Underlying Stock Options
Beginning outstanding balance (in shares)	828
Exercised (in shares)	(326)
Canceled or expired (in shares)	(127)
Ending outstanding balance (in shares)	375	828
Number of shares underlying stock options, Vested and expected to vest (in shares)	375
Number of shares underlying stock options, Exercisable (in shares)	158
Weighted Average Exercise Price Per Share
Beginning outstanding balance (in dollars per share) \| $ / shares	$ 8.16
Exercised (in dollars per share) \| $ / shares	8.79
Canceled or expired (in dollars per share) \| $ / shares	7.46
Ending outstanding balance (in dollars per share) \| $ / shares	7.85	$ 8.16
Weighted average exercise price, Vested and expected to vest (in dollars per share) \| $ / shares	7.85
Weighted average exercise price, Exercisable (in dollars per share) \| $ / shares	$ 8.21
Weighted average remaining contractual life, Vested and expected to vest	4 years 9 months 18 days
Weighted average remaining contractual life, Exercisable	4 years 2 months 26 days
Aggregate intrinsic value, Outstanding \| $	$ 431	$ 2,628
Aggregate intrinsic value, Vested and expected to vest \| $	431
Aggregate intrinsic value, Exercisable \| $	$ 161

STOCK-BASED COMPENSATION - SU_3

STOCK-BASED COMPENSATION - SUMMARY OF RESTRICTED STOCK UNITS AND RESTRICTED STOCK AWARDS AND PSUs (Details) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021USD ($)$ / sharesshares	Dec. 31, 2020USD ($)$ / sharesshares
Number of Restricted Stock Units / Awards
Beginning outstanding balance (in shares)	802,000
Ending outstanding balance (in shares)		802,000
Weighted Average Grant Date Fair Value
Beginning outstanding balance (in dollars per share) \| $ / shares	$ 6.98
Ending outstanding balance (in dollars per share) \| $ / shares		$ 6.98
2011 Plan
Number of Restricted Stock Units / Awards
Released (in shares)	(3,708,238)
RSUs outstanding
Number of Restricted Stock Units / Awards
Released (in shares)	(310,000)
Forfeited (in shares)	(128,000)
Ending outstanding balance (in shares)	364,000
Weighted Average Grant Date Fair Value
Released (in dollars per share) \| $ / shares	$ 7.45
Forfeited (in dollars per share) \| $ / shares	6.63
Ending outstanding balance (in dollars per share) \| $ / shares	$ 6.71
Weighted average remaining contractual life / recognition period, Outstanding	1 year 3 days	1 year
Aggregate intrinsic value, Outstanding \| $	$ 3,197	$ 9,057
RSAs outstanding
Number of Restricted Stock Units / Awards
Beginning outstanding balance (in shares)	130,000
Granted (in shares)	0
Released (in shares)	(130,000)
Forfeited (in shares)	0
Ending outstanding balance (in shares)	0	130,000
Weighted Average Grant Date Fair Value
Beginning outstanding balance (in dollars per share) \| $ / shares	$ 6.53
Granted (in dollars per share) \| $ / shares	0
Released (in dollars per share) \| $ / shares	6.53
Forfeited (in dollars per share) \| $ / shares	0
Ending outstanding balance (in dollars per share) \| $ / shares	$ 0	$ 6.53
Weighted average remaining contractual life / recognition period, Outstanding	0 years	5 months 12 days
PSUs outstanding
Number of Restricted Stock Units / Awards
Beginning outstanding balance (in shares)	250,000
Granted (in shares)	0
Released (in shares)	0
Forfeited (in shares)	(60,000)
Ending outstanding balance (in shares)	190,000	250,000
Weighted Average Grant Date Fair Value
Beginning outstanding balance (in dollars per share) \| $ / shares	$ 6.20
Granted (in dollars per share) \| $ / shares	0
Released (in dollars per share) \| $ / shares	0
Forfeited (in dollars per share) \| $ / shares	6.20
Ending outstanding balance (in dollars per share) \| $ / shares	$ 6.20	$ 6.20
Weighted average remaining contractual life / recognition period, Outstanding	1 year 6 months 29 days	2 years 29 days

STOCK-BASED COMPENSATION - SU_4

STOCK-BASED COMPENSATION - SUMMARY OF STOCK-BASED COMPENSATION EXPENSES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation, total	$ 1,051	$ 1,365	$ 1,582	$ 2,094
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation, total	313	343	537	388
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation, total	217	251	535	420
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation, total	521	771	510	1,286
Standard and market condition-based stock options outstanding
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation, total	179	298	194	553
RSUs, RSAs and PSUs
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation, total	852	1,056	1,349	1,518
Employee stock purchase plan
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation, total	$ 20	$ 11	$ 39	$ 23

STOCKHOLDERS' EQUITY - NARRATIV

STOCKHOLDERS' EQUITY - NARRATIVE (Details) - USD ($)	Feb. 11, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2020	Feb. 03, 2021	Oct. 24, 2014	Nov. 01, 2007
Equity, Class of Treasury Stock [Line Items]
Shelf Registration, Amount of Capital Authorized for Future Issuance, Value					$ 250,000,000
Stock Issued During Period, Maximum Value Authorized For Issuance	$ 50,000,000
Sale of stock, number of shares issued in transaction (in shares)		3,300,000
Consideration received, net		$ 35,900,000
Stock issuance costs		$ 1,200,000
Repurchased shares (in shares)			2,900,000	4,900,000
Repurchased shares, value			$ 18,667,000	$ 30,642,000
Stock repurchase program, average cost (in dollars per share)			$ 6.39	$ 6.39
Treasury Stock
Equity, Class of Treasury Stock [Line Items]
Repurchased shares (in shares)			2,920,211	4,932,977
Repurchased shares, value			$ 18,667,000	$ 30,642,000
Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount							$ 50,000,000
Stock repurchase program, additional authorized amount						$ 30,000,000

INCOME TAXES - SCHEDULE OF INCO

INCOME TAXES - SCHEDULE OF INCOME TAX PROVISIONS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income (loss) before provision for income taxes	$ 5,847	$ (671)	$ 8,024	$ (5,447)
Income Tax Expense (Benefit)	$ 506	$ 41	$ 647	$ 93
Effective tax rate	8.70%	(6.10%)	8.10%	(1.70%)

INCOME TAXES - NARRATIVE (Detai

INCOME TAXES - NARRATIVE (Details)	Jun. 30, 2021USD ($)
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 4,500,000
Unrecognized tax benefits, interest	0
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	0
Deferred income tax assets	2,700,000
Deferred income tax liabilities	400,000
Valuation allowance of deferred tax assets	$ (28,500,000)

NET INCOME (LOSS) PER SHARE - R

NET INCOME (LOSS) PER SHARE - RECONCILIATION OF NUMERATORS AND DENOMINATORS USED IN COMPUTING BASIC AND DILUTED NET INCOME (LOSS) PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator:
Net income (loss)	$ 5,341	$ (712)	$ 7,377	$ (5,540)
Denominator:
Weighted-average common stock outstanding, basic (in shares)	30,982	27,634	29,787	29,320
Dilutive effect of potential common shares, Stock options, restricted stock units, restricted stock awards and employee stock purchase plan (in shares)	265	0	466	0
Dilutive effect of potential common shares, Total shares, diluted (in shares)	31,247	27,634	30,253	29,320
Basic net loss per share (in dollars per share)	$ 0.17	$ (0.03)	$ 0.25	$ (0.19)
Diluted net loss per share (in dollars per share)	$ 0.17	$ (0.03)	$ 0.24	$ (0.19)

NET INCOME (LOSS) PER SHARE - S

NET INCOME (LOSS) PER SHARE - SCHEDULE OF ANTIDILUTIVE SECURITIES (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options to purchase shares of common stock (in shares)	490	1,638	115	1,457
Stock options outstanding
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options to purchase shares of common stock (in shares)	490	1,262	115	1,370
RSUs, RSAs and PSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options to purchase shares of common stock (in shares)	0	376	0	87

LEASES - NARRATIVE (Details)

LEASES - NARRATIVE (Details) $ in Thousands	Mar. 12, 2020USD ($)	Jun. 30, 2021USD ($)	Dec. 31, 2020USD ($)	Jun. 30, 2020	Mar. 31, 2020USD ($)	Jan. 31, 2020ft²	Nov. 12, 2014ft²
Leases
Operating lease liabilities		$ 2,365	$ 3,059
Right-of-use assets		1,236	1,607
Operating Lease, Initial Direct Cost Expense, over Term	$ 300
Operating Lease, Weighted Average Discount Rate, Percent				3.50%
Prepaid Expenses and Other Current Assets [Member]
Leases
Operating Lease, Initial Direct Cost Expense, over Term		100
Other Assets [Member]
Leases
Operating Lease, Initial Direct Cost Expense, over Term		100
San Francisco California Facility
Leases
Area \| ft²						5,000
Operating lease liabilities					$ 600
Right-of-use assets					$ 600
Operating Lease, Weighted Average Discount Rate, Percent					3.50%
Operating Lease, Impairment Loss		$ 32	$ 300
San Jose California Facility
Leases
Area \| ft²							42,000

LEASES - SUMMARY OF RIGHT OF US

LEASES - SUMMARY OF RIGHT OF USE ASSETS AND LEASE LIABILITIES (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets
Right-of-use assets	$ 1,236	$ 1,607
Liabilities
Operating lease liabilities - current	1,289	1,382
Operating lease liabilities - long-term	1,076	1,677
Total lease liabilities	$ 2,365	$ 3,059

LEASES - SCHEDULE OF SUPPLEMENT

LEASES - SCHEDULE OF SUPPLEMENTAL INFORMATION RELATED TO OPERATING LEASES AND EXPENSES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Net lease cost (income)	$ 199	$ 301	$ 616	$ 573
Sublease Income	(257)	(70)	(515)	(70)
Lease Income	(58)
Lease, Cost		$ 231	$ 101	503
Cash paid within operating cash flow	$ 740			$ 349
Weighted average lease terms (in years)	1 year 9 months 18 days	2 years 8 months 12 days	1 year 9 months 18 days	2 years 8 months 12 days
Operating Lease, Weighted Average Discount Rate, Percent		3.50%		3.50%

LEASES - SCHEDULE OF MINIMUM FU

LEASES - SCHEDULE OF MINIMUM FUTURE LEASE PAYMENT OBLIGATIONS (Details) $ in Thousands	Jun. 30, 2021USD ($)
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Remainder of 2021	$ 756
2022	1,228
2023	464
2024	26
Total	$ 2,474

LEASES - SCHEDULE OF SUBLEASE I

LEASES - SCHEDULE OF SUBLEASE INCOME EXPECTED TO BE RECEIVED (Details) $ in Thousands	Jun. 30, 2021USD ($)
Leases [Abstract]
Lessor, Operating Lease, Payment to be Received, Remainder of Fiscal Year	$ 529
Lessor, Operating Lease, Payment to be Received, Year One	1,077
Lessor, Operating Lease, Payment to be Received, Year Two	351
Total	$ 1,957

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) - USD ($) shares in Millions, $ in Millions	Aug. 03, 2021	Jul. 06, 2021	Mar. 31, 2021
Subsequent Event [Line Items]
Sale of stock, number of shares issued in transaction (in shares)			3.3
Consideration received, net			$ 35.9
Equity Distribution Agreement \| Subsequent Event
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Aggregate Offering Price		$ 60
Common Stock Issued, Commission Fee, Percentage		2.25%
Sale of stock, number of shares issued in transaction (in shares)	1.9
Consideration received, net	$ 14.5