Enservco (ENSV) 10-K31 Mar 232022 FY Annual reportFinancial data

Company Profile

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
Document And Entity Information - USD ($)	Dec. 31, 2022	Dec. 31, 2021	Mar. 22, 2023	Jun. 30, 2022
Document Information [Line Items]
Entity Central Index Key	0000319458
Entity Registrant Name	Enservco Corporation
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2022
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Document Transition Report	false
Entity File Number	001-36335
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	84-0811316
Entity Address, Address Line One	14133 County Road 9 1/2
Entity Address, City or Town	Longmont
Entity Address, State or Province	CO
Entity Address, Postal Zip Code	80504
City Area Code	303
Local Phone Number	333-3678
Title of 12(b) Security	Common stock, $0.005 par value
Trading Symbol	ENSV
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Public Float				$ 20,900,000
Entity Common Stock, Shares Outstanding			15,788,846
Auditor Firm ID	342	166
Auditor Name	Pannell Kerr Forster of Texas, P.C.	Plante & Moran, PLLC
Auditor Location	Houston, Texas	Denver, CO

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Current Assets:
Cash and cash equivalents	$ 35,000	$ 149,000
Accounts receivable, net	4,463,000	2,845,000
Prepaid expenses and other current assets	989,000	2,185,000
Inventories	320,000	346,000
Note receivable	75,000	0
Assets held for sale	78,000	68,000
Total current assets	5,960,000	5,593,000
Property and equipment, net	11,236,000	16,173,000
Goodwill	546,000	546,000
Intangible assets, net	182,000	399,000
Note receivable, less current portion	225,000	0
Right-of-use asset - finance, net	22,000	41,000
Right-of-use asset - operating, net	1,476,000	2,060,000
Other assets	191,000	336,000
TOTAL ASSETS	19,838,000	25,148,000
Current Liabilities:
Accounts payable and accrued liabilities	4,868,000	2,857,000
Senior revolving credit facility, related party	0	8,698,000
Subordinated Debt, Current	0	211,000
Current portion of long-term debt	54,000	58,000
Lease liability - finance	13,000	20,000
Lease liability - operating	597,000	688,000
Other current liabilities	354,000	0
Total current liabilities	10,241,000	12,532,000
Non-Current Liabilities:
Senior revolving credit facility, related party	0	5,404,000
Long-term debt, less current portion	0	54,000
Lease liability - finance, less current portion	11,000	23,000
Lease liability - operating, less current portion	991,000	1,496,000
Deferred tax liabilities	273,000	273,000
Other liabilities	22,000	24,000
Total non-current liabilities	8,428,000	7,274,000
TOTAL LIABILITIES	18,669,000	19,806,000
Commitments and Contingencies (Note 9)
Stockholders’ Equity:
Preferred stock, $0.005 par value, 10,000,000 shares authorized, no shares issued or outstanding	0	0
Common stock, $0.005 par value, 100,000,000 shares authorized; 11,835,753 and 11,439,191 shares issued as of December 31, 2022 and 2021, respectively; 6,907 shares of treasury stock as of December 31, 2022 and 2021; and 11,828,846 and 11,432,284 shares outstanding as of December 31, 2022 and 2021, respectively	59,000	57,000
Additional paid-in-capital	42,266,000	40,866,000
Accumulated deficit	(41,156,000)	(35,581,000)
Total stockholders’ equity	1,169,000	5,342,000
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	19,838,000	25,148,000
March 2022 Convertible Note [Member]
Current Liabilities:
Note, current portion, related party (Note 2 and Note 5)	100,000	0
Non-Current Liabilities:
Note, noncurrent portion, related party (Note 2 and Note 5)	1,100,000	0
Note, noncurrent portion, related party (Note 2 and Note 5)	1,100,000	0
July 2022 Convertible Note [Member]
Current Liabilities:
Note, current portion, related party (Note 2 and Note 5)	60,000	0
Non-Current Liabilities:
Note, noncurrent portion, related party (Note 2 and Note 5)	1,140,000	0
Note, noncurrent portion, related party (Note 2 and Note 5)	1,140,000	0
November 2022 Convertible Note [Member]
Non-Current Liabilities:
Note, noncurrent portion, related party (Note 2 and Note 5)	818,000	0
Note, noncurrent portion, related party (Note 2 and Note 5)	818,000	0
Utica [Member]
Current Liabilities:
Current portion of long-term debt	1,250,000	0
Non-Current Liabilities:
Long-term debt, less current portion	3,963,000	0
Utica Residual Liability	110,000	0
L S Q [Member]
Current Liabilities:
Current portion of long-term debt	$ 2,945,000	$ 0

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 31, 2022	Dec. 31, 2021
Preferred stock, par value (in dollars per share)	$ 0.005	$ 0.005
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.005	$ 0.005
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	11,835,753	11,439,191
Common stock, shares outstanding (in shares)	11,828,846	11,432,284
Treasury stock, shares (in shares)	6,907	6,907

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Revenues:
Revenue	$ 21,644	$ 15,337
Expenses:
Cost of revenue	20,229	17,339
Sales, general and administrative expenses	4,875	4,185
Severance and transition costs	303	7
Loss (gain) on disposal of equipment	300	(124)
Impairment loss	0	128
Depreciation and amortization	4,347	5,215
Total operating expenses	30,054	26,750
Loss from operations	(8,410)	(11,413)
Other income (expense):
Interest expense	(1,383)	(57)
Gain on debt extinguishment (Note 5)	4,277	0
Other income (expense), net	(59)	3,699
Total other income	2,835	3,642
Loss from continuing operations before taxes	(5,575)	(7,771)
Income tax expense	0	(273)
Loss from continuing operations	(5,575)	(8,044)
Loss from discontinued operations	0	(8)
Net loss	$ (5,575)	$ (8,052)
Loss from continuing operations per common share – basic and diluted (in dollars per share)	$ (480)	$ (740)
Loss from discontinued operations per common share – basic and diluted (in dollars per share)	0	0
Net loss per share – basic and diluted (in dollars per share)	$ (0.48)	$ (0.74)
Weighted average number of common shares outstanding – basic and diluted (in shares)	11,579	10,879
Production Services [Member]
Revenues:
Revenue	$ 11,211	$ 9,012
Expenses:
Cost of revenue	10,534	9,734
Depreciation and amortization	2,303	2,397
Completion Services [Member]
Revenues:
Revenue	10,433	6,325
Expenses:
Cost of revenue	9,695	7,605
Depreciation and amortization	$ 1,678	$ 2,415

Consolidated Statement of Stock

Consolidated Statement of Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2020	6,301
Balance at Dec. 31, 2020	$ 32	$ 30,052	$ (27,529)	$ 2,555
Stock-based compensation	$ 0	130	0	130
Shares issued in offering, net of issuance costs (in shares)	4,200
Shares issued in offering, net of issuance costs	$ 21	8,824	0	8,845
Shares and warrant issued to Cross River Partners, L.P. in subordinated debt and accrued interest conversion, net of discount (in shares)	602
Shares and warrant issued to Cross River Partners, L.P. in subordinated debt and accrued interest conversion, net of discount	$ 3	1,550	0	1,553
Restricted share issuances (in shares)	330
Restricted share issuances	$ 1	310	0	311
Restricted share cancellations (in shares)	(1)
Restricted share cancellations	$ 0	0	0	0
Net Income (Loss) Attributable to Parent, Total	$ 0	0	(8,052)	(8,052)
Balance (in shares) at Dec. 31, 2021	11,432
Balance at Dec. 31, 2021	$ 57	40,866	(35,581)	5,342
Stock-based compensation	$ 0	811	0	811
Restricted share issuances (in shares)	465
Restricted share issuances	$ 2	172	0	174
Restricted share cancellations (in shares)	(68)
Restricted share cancellations	$ 0	0	0	0
Net Income (Loss) Attributable to Parent, Total	0	0	(5,575)	(5,575)
Warrants issued in connection with November 2022 Convertible Note (Note 5)	$ 0	417	0	417
Balance (in shares) at Dec. 31, 2022	11,829
Balance at Dec. 31, 2022	$ 59	$ 42,266	$ (41,156)	$ 1,169

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
Consolidated Statements of Cash Flows - USD ($)	Dec. 31, 2022	Dec. 31, 2021
OPERATING ACTIVITIES:
Net loss	$ (5,575,000)	$ (8,052,000)
Net loss from discontinued operations	0	(8,000)
Net loss from continuing operations	(5,575,000)	(8,044,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	4,347,000	5,215,000
Loss (gain) on disposal of equipment	300,000	(124,000)
Impairment loss	0	128,000
Board compensation issued in equity	60,000	311,000
Write-off of inventories	52,000	0
Gain on debt extinguishment	(4,277,000)	0
Interest paid-in-kind on line of credit	119,000	0
Stock-based compensation	811,000	130,000
Severance cost incurred through issuance of restricted shares	112,000	0
Amortization of debt issuance costs and discount	100,000	9,000
Income tax expense	0	273,000
Gain on forgiveness of PPP loan (Note 5)	(4,277,000)	0
Bad debt (recovery) expense	(94,000)	268,000
Changes in operating assets and liabilities:
Accounts receivable	(1,524,000)	(1,380,000)
Inventories	(27,000)	(51,000)
Prepaid expenses and other current assets	1,728,000	(1,117,000)
Amortization of operating lease assets	680,000	858,000
Other assets	18,000	320,000
Accounts payable and accrued liabilities	2,153,000	1,005,000
Operating lease liabilities	(693,000)	(855,000)
Other liabilities	(536,000)	(64,000)
Net cash used in operating activities - continuing operations	(2,246,000)	(4,778,000)
Net cash provided by operating activities - discontinued operations	0	4,000
Net cash used in operating activities	(2,246,000)	(4,774,000)
INVESTING ACTIVITIES:
Purchases of property and equipment	(220,000)	(593,000)
Proceeds from disposals of property and equipment	563,000	393,000
Net cash provided by (used in) investing activities - continuing operations	343,000	(200,000)
Net cash provided by investing activities - discontinued operations	0	0
Net cash provided by (used in) investing activities	343,000	(200,000)
FINANCING ACTIVITIES:
Gross proceeds from stock issuance	0	9,660,000
Stock issuance costs and registration fees	0	(815,000)
Term loan contractual repayments	(1,050,000)	(3,505,000)
Term loan repayment consummated in conjunction with Refinance (Note 5)	(8,400,000)	0
Net line of credit repayments	0	(701,000)
TDR accrued future interest payments	(176,000)	(770,000)
Repayment of long-term debt	(58,000)	(100,000)
Payments on financed insurance	(673,000)	0
Payments of finance leases	(33,000)	(111,000)
Net cash provided by financing activities - continuing operations	1,789,000	3,658,000
Net cash used in financing activities - discontinued operations	0	(2,000)
Net cash provided by financing activities	1,789,000	3,656,000
Net Decrease in Cash and Cash Equivalents	(114,000)	(1,318,000)
Cash and Cash Equivalents, beginning of period	149,000	1,467,000
Cash and Cash Equivalents, end of period	35,000	149,000
Supplemental Cash Flow Information:
Cash paid for interest	1,027,000	822,000
Supplemental Disclosure of Non-cash Investing and Financing Activities:
Non-cash establishment of EWB Obligation consummated in conjunction with the Refinance (Note 5)	1,000,000	0
Non-cash establishment of note receivable for sale of Tioga property in North Dakota	300,000	0
Non-cash financed insurance consummated with insurance renewals	532,000	0
Non-cash operating lease exchange	95,000	0
Non-cash conversion of subordinated debt and accrued interest to Company common stock	0	1,312,000
Non-cash conversion of unamortized subordinated debt discount	0	61,000
Deferred loan costs paid directly by related party in lieu of subordinated note payable	0	210,000
L S Q [Member]
FINANCING ACTIVITIES:
Issuance of debt	2,400,000	0
Net line of credit repayments	545,000	0
Utica [Member]
FINANCING ACTIVITIES:
Issuance of debt	6,000,000	0
Net line of credit repayments	(846,000)
Cross River [Member]
FINANCING ACTIVITIES:
Cross River Revolver Note proceeds	750,000	0
Cross River subordinated debt repayment	(145,000)	0
Paycheck Protection Program CARES Act [Member]
Adjustments to reconcile net loss to net cash used in operating activities:
Gain on debt extinguishment	0	(1,964,000)
Gain on forgiveness of PPP loan (Note 5)	0	(1,964,000)
November 2022 Convertible Note [Member]
FINANCING ACTIVITIES:
Proceeds from Issuance of Long-Term Debt, Total	450,000	0
Convertible Note proceeds, related party	450,000	0
Supplemental Disclosure of Non-cash Investing and Financing Activities:
Non-cash issuance of warrants in connection with November 2022 Convertible Note	416,000	0
Equipment Term Loan [Member]
FINANCING ACTIVITIES:
Term loan borrowings	(700,000)
Term Loan [Member]
FINANCING ACTIVITIES:
Term loan borrowings		0
March 2022 Convertible Note [Member]
FINANCING ACTIVITIES:
Proceeds from Issuance of Long-Term Debt, Total	1,125,000	0
Convertible Note proceeds, related party	1,125,000	0
July 2022 Convertible Note [Member]
FINANCING ACTIVITIES:
Proceeds from Issuance of Long-Term Debt, Total	1,200,000	0
Convertible Note proceeds, related party	1,200,000	0
March 2022 Convertible Note Into Common Stock [Member]
Supplemental Disclosure of Non-cash Investing and Financing Activities:
Non-cash exchange Convertible Note	1,200,000	0
Cross River Revolver Note to November 2022 Convertible Note [Member]
Supplemental Disclosure of Non-cash Investing and Financing Activities:
Non-cash exchange Convertible Note	750,000	0
Conversion of Subordinated Debt to Equity[Member]
Adjustments to reconcile net loss to net cash used in operating activities:
Fair value of warrant issued upon conversion of subordinated debt to equity	$ 0	$ 304,000

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation	12 Months Ended
Note 1 - Basis of Presentation	Dec. 31, 2022
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	Note 1 – Basis of Presentation Enservco Corporation (" Enservco") through its wholly owned subsidiaries (collectively referred to as the "Company," "we" or "us") provides various services to the domestic onshore oil and natural gas industry. These services include hot oiling and acidizing ("Production Services") and frac water heating ("Completion and Other Services"). The accompanying consolidated financial statements have been derived from the accoun ting records of Enservco Corporation, Heat Waves Hot Oil Service LLC ("Heat Waves"), Dillco Fluid Service, Inc. ("Dillco"), Heat Waves Water Management LLC ("HWWM"), and Adler Hot Oil Service, LLC ("Adler") (collectively, the "Company") as of December 31, 2022 2021 The below table provides an overview of the Company ’s current ownership hierarchy: Name State of Formation Ownership Business Heat Waves Hot Oil Service LLC Colorado 100% by Enservco Oil and natural gas well services, including logistics and stimulation. Adler Hot Oil Service, LLC Delaware 100% by Enservco Operations integrated into Heat Waves during 2019. Adler Hot Oil Service, LLC was dissolved during the second quarter of 2021. Heat Waves Water Management LLC Colorado 100% by Enservco Discontinued operations in 2019. Heat Waves Water Management LLC was dissolved during the second quarter of 2021. Dillco Fluid Service, Inc. Kansas 100% by Enservco Discontinued operation in 2018. Dillco Fluid Service, Inc. was dissolved during the second quarter of 2021. The accompanying consolidated financial statements were prepared in accordance with accounting principles generally accepted in the United States ("GAAP"). All significant intercompany balances and transactions have been eliminated in the accompanying consolidated financial statements.

Note 2 - Summary of Significant

Note 2 - Summary of Significant Accounting Policies and Recent Developments	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Significant Accounting Policies [Text Block]	2 – Recent Developments and Going Concern On March 24, 2022, "2017 March 18, 2022 2017 five Note 5 Further, and in conjunction with the Refinancing, in March 2022 "March 2022 2017 July 2022, second "July 2022 September 2022, November 3, 2022, “November 2022 five may not Note 5 On February 22, 2023, one one one five may may no On March 28, 2023, March 2022 2023 March 2022 322,402 July 2022 $0.55 Our financial statements have been prepared on the going concern basis, which contemplates the continuity of normal business activities and the realization of assets and settlement of liabilities in the normal course of business. For the years ended December 31, 2022 2021, December 31, 2022, December 31, 2021, 2022, February 2023 not one 10 ee Note 5 for a description of the Refinancing. Cash and Cash Equivalents The Company considers all highly liquid instruments purchased with an original maturity of three ess to be cash equivalents. The Company continually monitors its positions with, and the credit quality of, the financial institutions with which it invests. The Company maintains its excess cash in various financial institutio ns, where deposits may exceed fede Accounts Receivable Accounts receivable are stated at the amounts billed to customers, net of an allowance fo r uncollectible accounts. The Company provides an allowance for uncollectible accounts based on a review of outstanding receivables, historical collection information and existing economic conditions. The allowance for uncollectible amounts is continually reviewed and adjusted to maintain the allowance at a level considered adequate to cover future losses. The allowance is management's best estimate of uncollectible amounts and is determined based on historical collection experience related to accounts receivable coupled with a review of the current s December 31, 2022 and 2021, December 31, 2022 2021, to bad debt (recovery) expense. Concentrations As of December 31, 2022, one 10% one December 31, 2022. three 2021. December 31, 2021, two 10% one December 31, 2021. Inventories Inventory consists primarily of propane, diesel fuel and chemicals that are used in the servicing of oil wells and is carried at the lower of cost or net realizable value in accordance with the first first December 31, 2022 2021, d $0, respectively. Property and Equipment Property and equipment consists of (i) trucks, trailers and pickups; (ii) water transfer pumps, pipe, lay flat hose, trailers, and other support equipment; (iii) real property which includes land and buildings used for office and shop facilities and wells u sed for the disposal of water; (iv) other equipment such as tools used for maintaining and repairing vehicles; and (v) office furniture and fixtures and computer equipment. Property and equipment is stated at cost less accumulated depreciation. The Company capitalizes interest on certain qualifying assets that are undergoing activities to prepare them for their intended use. Interest costs incurred during the fabrication period are capitalized and amortized over the life of the assets. The Company charges repairs and maintenance against income when incurred and capitalizes renewals and betterments, which extend the remaining useful life, expand the capacity or efficiency of the assets. Depreciation is recorded on a straight-line basis over estimated useful lives ranging from 5 to 30 years. Any difference between net book value of the property and equipment and the proceeds of an assets ’ sale, or settlement of an insurance claim, is recorded as a gain or loss in the Company’s consolidated statements of operations. Leases The Company assesses whether an arrangement is a lease at inception. Leases with an initial term of twelve not not not The Company conducts a m ajor part of its operations from leased facilities not The Company amortizes leasehold improvements over the shorter of the life of the lease or the life of the improvements. The Company leases trucks and equipment in the normal course of business, which may le; there are no Long-Lived Assets The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recovered. The Company reviews both qualitative and quantitative aspects of the business during the analysis of impairment. During the first 2020, 19 19 30% first 2021 2020, December 31, 2021 December 31, 2020. December 31, 2021. fourth 2021 The Company determined that there was no impairment of its long-lived assets held and used for the year ended December 31, 2021. Consi 2021 2022 no December 31, 2022. December 31, 2021 Assets Held for Sale The Company classifies long-lived assets to be sold as held for sale in the period in which all the following criteria are met: (i) management, having the authority to approve the action, commits to a plan to sell the asset or disposal group; (ii) the asset or disposal group is available for immediate sale in its present condition subject only to terms that are usual and customary for sales of such assets; (iii) an active program to locate a buyer and other actions required to complete the plan to sell the asset or disposal group have been initiated; (iv) the sale of the asset or disposal group is probable, and transfer of the asset or disposal group is expected to qualify for recognition as a completed sale within one one We initially measure a long-lived asset or disposal group that is classified as held for sale at the lower of its carrying value or fair value less any costs to sell. Any loss resulting from this measurement is recognized in the period in which the held-for-sale criteria are met. Conversely, gains are not not December 31, 2022 2021, Upon determining that a long-lived asset or disposal group meets the criteria to be classified as held for sale, the Company ceases depreciation and reports long-lived assets and/or the assets and liabilities of the disposal group, if material, in the line item "Assets held for sale" in our consolidated balance sheets. Goodwill and Other Intangible Assets Goodwill represents the excess purchase price over the fair value of identifiable assets received attributable to business acquisitions and combinations. Goodwill and other intangible assets are measured for impairment at least annually and/or whenever events and circumstances arise that indicate impairment may The Company completed its annual goodwill impairment test as of December 31, 2022 2021. As a result of performing the annual test of impairment, the Company recognized no impairment loss for its goodwill during the years ended December 31, 2022 2021. Revenue Recognition The Company evaluates revenue when we can identify the contract with the customer, the performance obligations in the contract, the transaction price, and we are certain that the performance obligations have been met. Revenue is recognized when the service has been provided to the customer. The vast majority of the Company's services and product offerings are short-term in nature. The time between invoicing and when payment is due under these arrangements is generally thirty sixty not The Company’s agreements with its customers are often referred to as "price sheets" and sometimes provide pricing for multiple services. However, these agreements generally do not not Revenue is recognized for certain projects that take more than one Disaggregation of Revenue S ee Note 10 for disaggre Earning s (Loss) Per Share Basic earnings per common share is computed by dividing net income (loss) by the weighted average number of common shares outstanding for the period. Diluted earnings per common share is calculated by dividing net income (loss) by the diluted weighted average number of common shares outstanding for the period. The diluted weighted average number of common shares outstanding for the period is computed using the treasury stock method for Company common stock that may As of December 31, 2022 2021, December 31, 2022, December 31, 2022, As of December 31, 2022, Note 5 Note 9 December 31, 2022, no December 31, 2022, not Further, as of December 31, 2022, three "March 2022 "July 2022 "November 2022 Note 5 March 2022 five July 2022 November 2022 March 2022 July 2022 November 2022 December 31, 2022 December 31, 2022 December 31, 2022. As of December 31, 2021, Note 9 December 31, 2021, December 31, 2021, not Offering Costs The Company complies with the requirements of ASC 340 10 S99 1 5A, Expenses of Offering December 31, 2022 2021, Employee Retention Tax Credits The Employee Retention Credits program, a provision of the Coronavirus Aid, Relief, and Economic Security Act ("CARES Act"), was extended through December 31, 2021 November 15, 2021, September 30, 2021. 2021, first three 2021. December 31, 2022 2021, $1.8 million within the line item "Other income" in the consolidated statements of operations Income Taxes The Company recognizes deferred tax liabilities and assets based on the differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements that will result in taxable or deductible amounts in future years (see Note 6 ) . Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect of a change in tax rates on deferred tax assets and liabilities will be recognized in income in the period that includes the enactment date. A deferred tax asset or liability that is not related to an asset or liability for financial reporting is classified according to the expected reversal date. The Company records a valuation allowance to reduce deferred tax assets to an amount that it believes is more likely than not expected to be realized. The Company accounts for any uncertainty in income taxes by recognizing the tax benefit from an uncertain tax position only if, in the Company's opinion, it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The Company measures the tax benefits recognized in the financial statements from such a position based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate resolution. The application of income tax law is inherently complex. Laws and regulations in this area are voluminous and are often ambiguous. As such, the Company is required to make many subjective assumptions and judgments regarding income tax exposures. Interpretations of and guidance surrounding income tax law and regulations change over time and may result in changes to the Company’s subjective assumptions and judgments which can materially affect amounts recognized in the consolidated balance sheets and consolidated statements of operations. The result of the reassessment of the Company’s tax positions did not have an impact on the consolidated financial statements. Interest and penalties associated with tax positions are recorded in the peri od assessed within the line item "Other incom e" in the consolidated statements of operations. The Company files income tax returns in the United States and in the states in which it conducts its business operations. The Company’s federal income tax filings for tax 2019 2022 remain open to examination. In general, the Company’s various state tax filings remain open for tax 2018 2022. Fair Value The Company follows authoritative guidance that applies to all financial assets and liabilities required to be measured and reported on a fair value basis. The Company also applies the guidance to non-financial assets and liabilities measured at fair value on a nonrecurring basis, including non-competition agreements and goodwill. The guidance defines fair value as the price that would be received to sell an asset or paid to transfer a liability ("exit price") in an orderly transaction between market participants at the measurement date. The guidance establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and mini Observable inputs are inputs that market participants would use in pricing the asset or liability based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions of what market participants would use in pricing the asset or liability based on the best information available in the circumstances. The Company valued its warrants using the Black-Scholes model, for the year ended December 31, 2022. December 31, 2021, The Company did not December 31, 2022 or 2021. The hierarchy is broken down into three Level 1: Quoted prices are available in active markets for identical assets or liabilities; Level 2: Quoted prices in active markets for similar assets and liabilities that are observable for the asset or liability; or Level 3: Unobservable pricing inputs that are generally less observable from objective sources, such as discounted cash flow models or valuations. Stock-Based Compensation Stock-based compensation cost is measured at the date of grant, based on the calculated fair value of the award as described below, and is recognized over the requisite service period, which is generally the vesting period of the equity grant. The Company uses the Black-Scholes pricing model as a method for determining the estimated grant date fair value for all stock options awarded to employees, independent contractors, officers and directors. The expected term of the options is based upon evaluation of historical and expected exercise behavior. The risk-free interest rate is based upon United States Treasury rates at the date of grant with maturity dates approximately equal to the expected life of the grant. Volatility is determined upon historical volatility of our stock and adjusted if future volatility is expected to vary from historical experience. The dividend yield is assumed to be none not The Company used the market value of Company stock to determine the fair value of the performance-based restricted stock awar ded in 2022 2021. The Company used a Black-Scholes model to determ ine the fair value of market-based restricted stock awarded for the year ended December 31, 2022, December 31, 2021. Management Estimates The preparation of the Company ’s consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates include the realization of accounts receivable, evaluation of impairment of long-lived assets, stock-based compensation expense, provision for income taxes, and the valuation of warrant liabilities and deferred taxes. Actual results could differ from those estimates. Contingent Liabilities From time-to-time, the Company will have contingent liabilities that arise in the course of business, usually as it pertains to certain lawsuits in which the Company is involved. When a future contingent liability becomes both probable and estimable, the Company will record a liability for the estimated amount, as well as any offsetting receivables in the event the claim is probable to be covered by an insurance policy. In the event there is a range of outcomes and no Classification and Valuation of Warrants The Company analyzes warrant instruments under ASC 480 10, Distinguishing Liabilities from Equity None The Company uses a Black-Scholes model to determine the fair value of certain warrants. The expected term used was the remaining contractual term. Expected volatility is based upon historical volatility over a term consistent with the remaining term. The risk-free interest rate is derived from the yield on zero zero Going Concern The Company utilizes a cash forecast model to evaluate the ability of future cash flows to fund continuing operations. The Company analyzes projected cash flows to determine if they are sufficient to fund the operations and obligations of the Company for a period of time that extends twelve Note 5 February 2023 twelve may no Note 11 Reclassifications Certain prior period amounts have may no Accounting Pronouncements Recently Issued In June 2016, 2016 13, Financial Statements - Credit Losses (Topic 326 December 15, 2022. not 2016 13

Note 3 - Property and Equipment

Note 3 - Property and Equipment	12 Months Ended
Note 3 - Property and Equipment	Dec. 31, 2022
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	Note 3 – Property and equipment consist of the following (in thousands): December 31, 2022 2021 Trucks and vehicles $ 53,473 $ 54,670 Other equipment 2,059 2,059 Buildings and improvements 2,600 3,140 Land 190 378 Total property and equipment 58,322 60,247 Accumulated depreciation (47,086 ) (44,074 ) Property and equipment, net $ 11,236 $ 16,173 For the years ended December 31, 2022 2021, $ 4.9 million, respectively.

Note 4 - Intangible Assets

Note 4 - Intangible Assets	12 Months Ended
Note 4 - Intangible Assets	Dec. 31, 2022
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	Note 4 – Intangible Assets, net The components of our intangible assets as of December 31, 2022 2021 December 31, 2022 2021 Customer relationships $ 626 $ 626 Patents and trademarks 441 441 Total intangible assets 1,067 1,067 Accumulated amortization (885 ) (668 ) Net carrying value $ 182 $ 399 The useful lives of our intangible assets are estimated to be five December 31, 2022 2021 The following table represents the amortization expense for the twelve December 31 ( 2023 2024 2025 2026 2027 Customer relationships $ 105 $ - $ - $ - $ - Patents and trademarks 77 - - - - Total intangible asset amortization expense $ 182 $ - $ - $ - $ -

Note 5 - Debt

Note 5 - Debt	12 Months Ended
Note 5 - Debt	Dec. 31, 2022
Notes to Financial Statements
Debt Disclosure [Text Block]	Note 5 – Debt East West Bank Revolving Credit Facility The 2017 Note 2 January 1, 2021. 2017 April 26, 2021 ( November 15, 2021 October 15, 2022. 2017 first October 15, 2022, 2017 2017 2017 Under the amended 2017 ( 1 December 31, 2021, not ( 2 three three March 31, 2021, seventy ( 3 On February 11, 2021, December 31, 2021, 2017 December 31, 2021, 2017 2017 December 31, 2021 2017 470 60, Troubled Debt Restructuring by Debtors On November 12, 2021, October three November December 2021 not three November 30, 2021, November December 31, 2021 November December 2021 December 31, 2021. January 31, 2022 March 31, 2022, three April 30, 2022 September 30, 2022, three April 30, 2022 May 31, 2022, February March 2022. nt, the Company paid East October In connection with amending the 2017 September 23, 2020, five 533,334 533,334 March 23, 2021. 1,000,000 September 23, 2021 September 23, 2025. In December 2021, no December 23, 2021. 2017Amended March 24, 2022 ( The Refinancing On March 24, 2022, 2017 March 18, 2022 2017 As part of the Refinancing, on March 24, 2022, 51 January 1, 2023 January 1 July 1, July 1, 2022. fifty-one fter 12 Additionally, as part of the Refinancing and in accordance with ASC 470 10 45, 2017 December 31, 2021. twelve December 31, 2021. 470 10 45. In addition, as part of the Re March 24, 2022, “2022 18 The Utica Facility and the Receivables Financing are subject to an Intercreditor Agreement dated on or about March 24, 2022 Lastly, as part of the Refinancing, the Company issued a $1.2 million convertible subordinated note (the “March 2022 March 2022 six March 2022 first June 30, 2022, five ten March 2022 March 2022 five In accordance with ASC 470 60, not 2017 not 2022 2017 Subordinated Debt with Related Party On December 21, 2021, third 2017 June 21, 2022, December 31, 2022 2021, the Company amortized $5,000 and $1,000 to the line item "Interest expense" in the consolidated statements of operations. During the year December 31, 2022, not third first 2022, On July 15, 2022, “July 2022 July 2022 six first September 30, 2022, five ten July 2022 may July 2022 On September 22, 2022, one September 22, 2023 thirty 30 not On November 3, 2022, September “November 2022 five may not November 2022 two March 30, 2023 November 2022 November 2022 two December 13, 2022, one two Debt Issuance Costs We capitalized certain debt issuance costs incurred in connection with the 2017 November 2022 November 2022 December 31, 2022. 2017 December 31, 2021. December 31, 2022 2021, three Paycheck Protection Program On April 10, 2020, March 27, 2020, On November 9, 2020, July 8, 2021, December 31, 2021. Notes Payable Long-term debt consists of the following (in thousands): December 31, 2022 2021 Senior Revolving Credit Facility with related party. All future interest through October 15, 2021 accrued to loan pursuant to the Fifth Amendment. Extinguished through the Refinancing. $ - $ 14,102 Utica Facility. Interest at 15.50 June 24, 2026. 5,379 - LSQ Facility. Upfront 0.1 0.021 10 2,945 - March 2022 Convertible Note with related party. Interest at 7.00 March 22, 2028 1,200 - July 2022 Convertible Note with related party. Interest at 7.75 July 15, 2028 1,200 - November 2022 Convertible Note with related party. Interest at 10.00 November 3, 2024 1,200 - Subordinated Promissory Note with related party. Non-interest bearing. $10,000 flat fee paid to consummate loan. Matured June 21, 2022. - 220 Real Estate Loan for a facility in North Dakota. Interest at 5.75% and monthly principal and interest payment of $5,255 until October 3, 2023. Collateralized by land and property purchased with the loan. 54 112 Total long-term debt 11,978 14,434 Less debt discount (548 ) (9 ) Less current portion (4,409 ) (8,967 ) Long-term debt, net of debt discount and current portion $ 7,021 $ 5,458 Aggregate contractual principal maturities of debt for the twelve December 31 follows for the five 2023 $ 4,409 2024 2,904 2025 1,955 2026 1,189 2027 240 Thereafter 1,281 Total $ 11,978

Note 6 - Income Taxes

Note 6 - Income Taxes	12 Months Ended
Note 6 - Income Taxes	Dec. 31, 2022
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 6 – Income Taxes Income tax expense consists of the following (in thousands): December 31, 2022 2021 Current: Federal $ - $ - State - - Total current - - Deferred: Federal - 234 State - 39 Total deferred - 273 Total income tax expense $ - $ 273 A reconciliation of computed income taxes by applying the statutory federal income tax rate of 21% to loss from continuing operations before taxes to income tax expense as presented in our consolidated statements of operations for the years ended December 31, 2022 2021 December 31, 2022 2021 Computed income taxes at 21 $ (1,171 ) $ (1,634 ) Increase (decrease) in income taxes resulting from: State and local income taxes, net of federal impact (195 ) (272 ) Change in valuation allowance 1,360 2,892 True-up adjustment - (238 ) Paycheck Protection Plan loan forgiveness - (481 ) Other 6 6 Income tax expense $ - $ 273 In assessing the realization of deferred tax assets, management considers whether it is more likely than not not realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies in making this assessment. The Company did not December 31, 2022. December 31, 2021, 382, December 31, 2021, no December 31, 2021. We have a requirement of reporting of taxes based on tax positions which meet a "more likely than not" not Differences between financial and tax reporting which do not December 31, 2022 2021, not T he Company has federal and state net operating loss carryforwards ("NOLs"), each of which were December 31, 2022. 382 2035. The components of deferred income taxes for the years ended December 31, 2022 2021 December 31, 2022 2021 Deferred tax assets: Reserves and accruals $ 307 $ 603 Amortization 82 60 Capital losses and other 12 12 Non-qualified stock option expense - 2 Loss carryforwards 9,854 8,700 Total deferred tax assets 10,255 9,377 Valuation allowance (9,006 ) (7,649 ) Net deferred tax assets 1,249 1,728 Deferred tax liabilities: Depreciation (1,522 ) (2,001 ) Total deferred tax liabilities (1,522 ) (2,001 ) Net deferred tax liabilities $ (273 ) $ (273 ) The Company uses significant judgment in forming conclusions regarding the recoverability of its deferred tax assets and evaluates all available positive and negative evidence to determine if it is more likely than not not 31, 2022 2021, It is possible that the relative weight of positive and negative evidence regarding the realization of deferred tax assets may ’s valuation allowance. Such a change could result in a material increase or decrease to income tax expense in the period the assessment was made. The Company classifies penalty and interest expense related to income tax liabilities as other ex pense, which is presented within the line item "Other income" in the consolidated statements of operations. The Company did not December 31, 2022 2021, The Company files tax re turns in various states in the United States, including but not 2019 2022 remain open to examination. In general, the Company’s various state tax filings remain open for tax 2018 2022 .

Note 7 - Stockholders' Equity

Note 7 - Stockholders' Equity	12 Months Ended
Note 7 - Stockholders' Equity	Dec. 31, 2022
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	Note 7 – Stockholders' Equity Conversion of Subordinated Debt to Equity On February 11, 2021, one February 11, 2022 February 11, 2026. The total fair value of the warrant and loss on extinguishment of the subordinated debt with this related party was $304,000, which was recorded within the line item "Other income" in the consolidated statements of operations for the year ended December 31, 2021. Warrants On November 11, 2019, one five November 11, 2024. On September 23, 2020, one five one September 23, 2021 September 23, 2025. On February 11, 2021, one five one February 11, 2022 February 11, 2026. On November 3, 2022, five November 3, 2027. may not Each grant of warrants granted to Cross River was reviewed and approved by the independent directors of the Company. On April 12, 2021, may A summary of warrant activity for the years ended December 31, 2022 2021 Weighted Average Weighted Average Remaining Warrants Shares Exercise Price Contractual Life (Years) Outstanding as of January 1, 2021 1,043,667 $ 3.73 4.69 Issued 150,418 2.51 4.12 Expired (2,000 ) 10.50 - Outstanding as of December 31, 2021 1,192,085 3.57 3.75 Issued 568,720 2.11 4.84 Outstanding as of December 31, 2022 1,760,805 $ 3.10 3.43 Exercisable as of December 31, 2022 1,760,805 $ 3.10 3.43

Note 8 - Stock Options and Rest

Note 8 - Stock Options and Restricted Stock	12 Months Ended
Note 8 - Stock Options and Restricted Stock	Dec. 31, 2022
Notes to Financial Statements
Share-Based Payment Arrangement [Text Block]	Note 8 – Stock Options and Restricted Stock Stock Options On July 27, 2010, ’s Board adopted the 2010 2010 2010 January 1, 2016, 2010 one three five 2010 no 2010 December 31, 2021, under the 2010 On July 18, 2016, 2016 2016 September 29, 2016. may 2016 2010 December 31, 2022, December 31, 2022, we had gr f restricted stock that re 2016 During the years ended December 31, 2022 2021, The following is a summary of stock options activity for all equity plans for the years ended December 31, 2022 2021 Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Outstanding as of January 1, 2021 11,569 $ 5.87 0.53 Forfeited or expired (10,235 ) 5.91 - Outstanding as of December 31, 2021 1,334 5.55 0.42 Forfeited or expired (1,334 ) 5.55 - Outstanding as of December 31, 2022 - $ - - Vested as of December 31, 2022 - $ - - Exercisable as of December 31, 2022 - $ - - There was no aggregate intrinsic value (the difference between the estimated fair value of the Company ’s common stock on December 31, 2022 During the years ended December 31, 2022 2021, nized no stock-based compensation expense for stock options . Further, a December 31, 2022, compensation costs related to non-vested shares under the Company's stock option plans. Restricted Stock Restricted shares issued pursuant to restricted stock awards under the 2016 three may not A summary of the restricted stock activity is presented below: Shares Weighted Average Grant Date Fair Value Restricted shares as of January 1, 2021 24,393 $ 7.32 Granted 165,000 1.05 Vested (6,505 ) 7.94 Forfeited (1,667 ) 8.92 Restricted shares as of December 31, 2021 181,221 1.58 Granted 345,000 2.68 Vested (178,721 ) 2.12 Forfeited (80,000 ) 2.21 Restricted shares as of December 31, 2022 267,500 $ 2.44 During the years ended December 31, 2022 2021, April 2022. The following table sets forth the weighted average outstanding of potentially dilutive instruments for the years ended December 31, 2022 2021: For the Year Ended December 31, 2022 2021 Stock options - 3,621 Warrants 1,282,457 1,175,719 Weighted average 1,282,457 1,179,340

Note 9 - Commitments and Contin

Note 9 - Commitments and Contingencies	12 Months Ended
Note 9 - Commitments and Contingencies	Dec. 31, 2022
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	Note 9 – Commitments and Contingencies As of December 31, 2022, June 2026. Operating Leases Finance Leases For the year ended December 31, 2023 $ 680 $ 14 2024 510 11 2025 374 - 2026 179 - Total future lease commitments 1,743 25 Impact of discounting (155 ) (1 ) Discounted value of lease obligations $ 1,588 $ 24 The following table summarizes the components of our operating and finance lease costs incurred during the years ended December 31, 2022 2021 For the Year Ended December 31, 2022 2021 Operating lease expense: Current lease cost $ 88 $ 82 Long-term lease cost 799 1,026 Total operating lease cost $ 887 $ 1,108 Finance lease expense: Amortization of right-of-use assets $ 19 $ 64 Interest on lease liabilities 2 6 Total finance lease cost $ 21 $ 70 Our weighted-average lease term and discount rate used during the years ended December 31, 2022 2021 For the Year Ended December 31, 2022 2021 Operating: Weighted-average lease term (years) 2.87 3.42 Weighted-average discount rate 6.38 % 6.09 % Finance: Weighted-average lease term (years) 1.74 2.35 Weighted-average discount rate 5.59 % 5.67 % Self-Insurance In June 2015, first December 31, 2022 2021, December 31, 2021. December 31, 2021, December 31, 2021 Effective January 1, 2021, no Effective April 1, 2015, March 31, 2018. March 31, 2022, fourth 2021, no fourth 2021, second 2022. Effective April 1, 2018, no Litigation On November 8, 2021, two November 19, 2019. August 9, 2022, September 2022. On May 22, 2022, 10 2021 November 28, 2022, Jan On February 10, 2023, 10 third 2021, not three 2021 We believe the class action complaint is baseless and without merit and have engaged counsel to vigorously defend the Company against the claim. The Company has Director’s and Officer’s insurance coverage to defend against such claims and the Company's insurance carriers have been notified about the lawsuit. While we believe the claim is without merit, there can be no may may not may no

Note 10 - Segment Reporting

Note 10 - Segment Reporting	12 Months Ended
Note 10 - Segment Reporting	Dec. 31, 2022
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	Note 10 – Enservco’s reportable operating segments are Production Services and Completion and Other Services. These segments have been selected based on management’s resource allocation and performance assessment in making decisions regarding the Company. The following is a description of the segments: Production Services This segment utilizes a fleet of hot oiling trucks and acidizing units to provide maintenance services to the domestic oil and gas industry. These services include hot oiling services and acidizing services. Hot oiling is utilized by customers to remove paraffins from wellbores, pipes and vessels. Acidizing services are utilized by customers to clean reservoir surfaces and increase flow rates. Completion and Other Services This segment utilizes a fleet of frac water heating units to provide frac water heating services and related support services to the domestic oil and gas industry. These services also include other services for other industries, which consist primarily of hauling and transport of materials and heat treating for customers. Frac water heating is utilized by customers during the completion of oil and gas wells. Unallocated This segment includes general overhead expenses and assets associated with managing all reportable operating segments which have not The following tables set forth certain financial information with respect to Enservco ’s reportable segments (in thousands): Production Services Completion and Other Services Unallocated Total For the Year Ended December 31, 2022: Revenues $ 11,211 $ 10,433 $ - $ 21,644 Cost of revenues 10,534 9,695 - 20,229 Segment profit $ 677 $ 738 $ - $ 1,415 Depreciatio n and amortization $ 2,303 $ 1,678 $ 366 $ 4,347 Capital exp enditures $ 127 $ 93 $ - $ 220 Identifiable assets (1) $ 7,044 $ 10,584 $ 158 $ 17,786 For the Year Ended December 31, 2021: Revenues $ 9,012 $ 6,325 $ - $ 15,337 Cost of revenues 9,734 7,605 - 17,339 Segment loss $ (722 ) $ (1,280 ) $ - $ (2,002 ) Depreciatio n and amortization $ 2,397 $ 2,415 $ 403 $ 5,215 Capital exp enditures $ 306 $ 276 $ 11 $ 593 Identifiable assets (1) $ 12,357 $ 9,007 $ 505 $ 21,869 ( 1 Identifiable assets is calculated by summing the balances of accounts receivable, net; inventories; property and equipment, net; net right-of-use lease assets; assets held for sale; and other assets. The following table reconcile s the segment losses reported above to the loss from operations reported in the consolidated statements of operations (in thousands): For the Year Ended December 31, 2022 2021 Segment profit (loss) $ 1,415 $ (2,002 ) Sales, general and administrative expenses (4,875 ) (4,185 ) Severance and transition costs (303 ) (7 ) (Loss) gain from disposal of equipment (300 ) 124 Impairment loss - (128 ) Depreciation and amortization (4,347 ) (5,215 ) Loss from operations $ (8,410 ) $ (11,413 ) Geographic Areas The Company only conducts business in the United States, in what it believes are three three December 31, 2022 2021 For the Year Ended December 31, 2022 2021 BY GEOGRAPHY: Production Services: Rocky Mountain Region (1) $ 1,542 $ 2,213 Central USA Region (2) 8,948 6,158 Eastern USA Region (3) 721 641 Total Production Services 11,211 9,012 Completion and Other Services: Rocky Mountain Region (1) 8,090 4,521 Central USA Region (2) 842 128 Eastern USA Region (3) 1,501 1,676 Total Completion and Other Services 10,433 6,325 Total Revenues $ 21,644 $ 15,337 ( 1 Includes the DJ Basin/Niobrara field (northeastern Colorado and southeastern Wyoming), the San Juan Basin (southeastern Colorado and northeastern New Mexico), the Powder River and Green River Basins (northeastern and southwestern Wyoming), the Bakken area (western North Dakota and eastern Montana). ( 2 Includes the Eagle Ford Shale in southern Texas and the East Texas Oilfield beginning during the second 2021. ( 3 Consists of the southern region of the Marcellus Shale formation (southwestern Pennsylvania and northern West Virginia) and the Utica Shale formation (eastern Ohio).

Note 11 - Subsequent Events

Note 11 - Subsequent Events	12 Months Ended
Note 11 - Subsequent Events	Dec. 31, 2022
Notes to Financial Statements
Subsequent Events [Text Block]	Note 11 – February 2023 On February 22, 2023, one one one $0.005 five may may no NYSE Notifications On December 9, 2022, 10 June 30, 2022 ( “Q2 2022 10 not 1003 five Q2 2022 10 January 10, 2023, June 9, 2024. eighteen 18 no no no On January 3, 2023, 704 December 31, 2021 December 31, 2022. 2023, Cross River Convertible Note Conversions On March 28, 2023, March 2022 2,275,000 2023 March 2022 July 2022 Legal Matters On February 10, 2023, Note 9 10 third 2021, not three 2021

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
Significant Accounting Policies (Policies)	Dec. 31, 2022
Accounting Policies [Abstract]
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash and Cash Equivalents The Company considers all highly liquid instruments purchased with an original maturity of three ess to be cash equivalents. The Company continually monitors its positions with, and the credit quality of, the financial institutions with which it invests. The Company maintains its excess cash in various financial institutio ns, where deposits may exceed fede
Recent Developments and Going Concern [Policy Text Block]	Recent Developments and Going Concern On March 24, 2022, "2017 March 18, 2022 2017 five Note 5 Further, and in conjunction with the Refinancing, in March 2022 "March 2022 2017 July 2022, second "July 2022 September 2022, November 3, 2022, “November 2022 five may not Note 5 On February 22, 2023, one one one five may may no On March 28, 2023, March 2022 2023 March 2022 322,402 July 2022 $0.55 Our financial statements have been prepared on the going concern basis, which contemplates the continuity of normal business activities and the realization of assets and settlement of liabilities in the normal course of business. For the years ended December 31, 2022 2021, December 31, 2022, December 31, 2021, 2022, February 2023 not one 10 ee Note 5 for a description of the Refinancing.
Accounts Receivable [Policy Text Block]	Accounts Receivable Accounts receivable are stated at the amounts billed to customers, net of an allowance fo r uncollectible accounts. The Company provides an allowance for uncollectible accounts based on a review of outstanding receivables, historical collection information and existing economic conditions. The allowance for uncollectible amounts is continually reviewed and adjusted to maintain the allowance at a level considered adequate to cover future losses. The allowance is management's best estimate of uncollectible amounts and is determined based on historical collection experience related to accounts receivable coupled with a review of the current s December 31, 2022 and 2021, December 31, 2022 2021, to bad debt (recovery) expense.
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentrations As of December 31, 2022, one 10% one December 31, 2022. three 2021. December 31, 2021, two 10% one December 31, 2021.
Inventory, Policy [Policy Text Block]	Inventories Inventory consists primarily of propane, diesel fuel and chemicals that are used in the servicing of oil wells and is carried at the lower of cost or net realizable value in accordance with the first first December 31, 2022 2021, d $0, respectively.
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment Property and equipment consists of (i) trucks, trailers and pickups; (ii) water transfer pumps, pipe, lay flat hose, trailers, and other support equipment; (iii) real property which includes land and buildings used for office and shop facilities and wells u sed for the disposal of water; (iv) other equipment such as tools used for maintaining and repairing vehicles; and (v) office furniture and fixtures and computer equipment. Property and equipment is stated at cost less accumulated depreciation. The Company capitalizes interest on certain qualifying assets that are undergoing activities to prepare them for their intended use. Interest costs incurred during the fabrication period are capitalized and amortized over the life of the assets. The Company charges repairs and maintenance against income when incurred and capitalizes renewals and betterments, which extend the remaining useful life, expand the capacity or efficiency of the assets. Depreciation is recorded on a straight-line basis over estimated useful lives ranging from 5 to 30 years. Any difference between net book value of the property and equipment and the proceeds of an assets ’ sale, or settlement of an insurance claim, is recorded as a gain or loss in the Company’s consolidated statements of operations.
Lessee, Leases [Policy Text Block]	Leases The Company assesses whether an arrangement is a lease at inception. Leases with an initial term of twelve not not not The Company conducts a m ajor part of its operations from leased facilities not The Company amortizes leasehold improvements over the shorter of the life of the lease or the life of the improvements. The Company leases trucks and equipment in the normal course of business, which may le; there are no
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]	Long-Lived Assets The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recovered. The Company reviews both qualitative and quantitative aspects of the business during the analysis of impairment. During the first 2020, 19 19 30% first 2021 2020, December 31, 2021 December 31, 2020. December 31, 2021. fourth 2021 The Company determined that there was no impairment of its long-lived assets held and used for the year ended December 31, 2021. Consi 2021 2022 no December 31, 2022. December 31, 2021 Assets Held for Sale The Company classifies long-lived assets to be sold as held for sale in the period in which all the following criteria are met: (i) management, having the authority to approve the action, commits to a plan to sell the asset or disposal group; (ii) the asset or disposal group is available for immediate sale in its present condition subject only to terms that are usual and customary for sales of such assets; (iii) an active program to locate a buyer and other actions required to complete the plan to sell the asset or disposal group have been initiated; (iv) the sale of the asset or disposal group is probable, and transfer of the asset or disposal group is expected to qualify for recognition as a completed sale within one one We initially measure a long-lived asset or disposal group that is classified as held for sale at the lower of its carrying value or fair value less any costs to sell. Any loss resulting from this measurement is recognized in the period in which the held-for-sale criteria are met. Conversely, gains are not not December 31, 2022 2021, Upon determining that a long-lived asset or disposal group meets the criteria to be classified as held for sale, the Company ceases depreciation and reports long-lived assets and/or the assets and liabilities of the disposal group, if material, in the line item "Assets held for sale" in our consolidated balance sheets.
Goodwill and Intangible Assets, Policy [Policy Text Block]	Goodwill and Other Intangible Assets Goodwill represents the excess purchase price over the fair value of identifiable assets received attributable to business acquisitions and combinations. Goodwill and other intangible assets are measured for impairment at least annually and/or whenever events and circumstances arise that indicate impairment may The Company completed its annual goodwill impairment test as of December 31, 2022 2021. As a result of performing the annual test of impairment, the Company recognized no impairment loss for its goodwill during the years ended December 31, 2022 2021.
Revenue [Policy Text Block]	Revenue Recognition The Company evaluates revenue when we can identify the contract with the customer, the performance obligations in the contract, the transaction price, and we are certain that the performance obligations have been met. Revenue is recognized when the service has been provided to the customer. The vast majority of the Company's services and product offerings are short-term in nature. The time between invoicing and when payment is due under these arrangements is generally thirty sixty not The Company’s agreements with its customers are often referred to as "price sheets" and sometimes provide pricing for multiple services. However, these agreements generally do not not Revenue is recognized for certain projects that take more than one Disaggregation of Revenue S ee Note 10 for disaggre
Earnings Per Share, Policy [Policy Text Block]	Earning s (Loss) Per Share Basic earnings per common share is computed by dividing net income (loss) by the weighted average number of common shares outstanding for the period. Diluted earnings per common share is calculated by dividing net income (loss) by the diluted weighted average number of common shares outstanding for the period. The diluted weighted average number of common shares outstanding for the period is computed using the treasury stock method for Company common stock that may As of December 31, 2022 2021, December 31, 2022, December 31, 2022, As of December 31, 2022, Note 5 Note 9 December 31, 2022, no December 31, 2022, not Further, as of December 31, 2022, three "March 2022 "July 2022 "November 2022 Note 5 March 2022 five July 2022 November 2022 March 2022 July 2022 November 2022 December 31, 2022 December 31, 2022 December 31, 2022. As of December 31, 2021, Note 9 December 31, 2021, December 31, 2021, not
Loan Fees and Other Deferred Costs [Policy Text Block]	Offering Costs The Company complies with the requirements of ASC 340 10 S99 1 5A, Expenses of Offering December 31, 2022 2021,
Employee Retention Tax Credit [Policy Text Block]	Employee Retention Tax Credits The Employee Retention Credits program, a provision of the Coronavirus Aid, Relief, and Economic Security Act ("CARES Act"), was extended through December 31, 2021 November 15, 2021, September 30, 2021. 2021, first three 2021. December 31, 2022 2021, $1.8 million within the line item "Other income" in the consolidated statements of operations
Income Tax, Policy [Policy Text Block]	Income Taxes The Company recognizes deferred tax liabilities and assets based on the differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements that will result in taxable or deductible amounts in future years (see Note 6 ) . Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect of a change in tax rates on deferred tax assets and liabilities will be recognized in income in the period that includes the enactment date. A deferred tax asset or liability that is not related to an asset or liability for financial reporting is classified according to the expected reversal date. The Company records a valuation allowance to reduce deferred tax assets to an amount that it believes is more likely than not expected to be realized. The Company accounts for any uncertainty in income taxes by recognizing the tax benefit from an uncertain tax position only if, in the Company's opinion, it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The Company measures the tax benefits recognized in the financial statements from such a position based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate resolution. The application of income tax law is inherently complex. Laws and regulations in this area are voluminous and are often ambiguous. As such, the Company is required to make many subjective assumptions and judgments regarding income tax exposures. Interpretations of and guidance surrounding income tax law and regulations change over time and may result in changes to the Company’s subjective assumptions and judgments which can materially affect amounts recognized in the consolidated balance sheets and consolidated statements of operations. The result of the reassessment of the Company’s tax positions did not have an impact on the consolidated financial statements. Interest and penalties associated with tax positions are recorded in the peri od assessed within the line item "Other incom e" in the consolidated statements of operations. The Company files income tax returns in the United States and in the states in which it conducts its business operations. The Company’s federal income tax filings for tax 2019 2022 remain open to examination. In general, the Company’s various state tax filings remain open for tax 2018 2022.
Fair Value of Financial Instruments, Policy [Policy Text Block]	Fair Value The Company follows authoritative guidance that applies to all financial assets and liabilities required to be measured and reported on a fair value basis. The Company also applies the guidance to non-financial assets and liabilities measured at fair value on a nonrecurring basis, including non-competition agreements and goodwill. The guidance defines fair value as the price that would be received to sell an asset or paid to transfer a liability ("exit price") in an orderly transaction between market participants at the measurement date. The guidance establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and mini Observable inputs are inputs that market participants would use in pricing the asset or liability based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions of what market participants would use in pricing the asset or liability based on the best information available in the circumstances. The Company valued its warrants using the Black-Scholes model, for the year ended December 31, 2022. December 31, 2021, The Company did not December 31, 2022 or 2021. The hierarchy is broken down into three Level 1: Quoted prices are available in active markets for identical assets or liabilities; Level 2: Quoted prices in active markets for similar assets and liabilities that are observable for the asset or liability; or Level 3: Unobservable pricing inputs that are generally less observable from objective sources, such as discounted cash flow models or valuations.
Share-Based Payment Arrangement [Policy Text Block]	Stock-Based Compensation Stock-based compensation cost is measured at the date of grant, based on the calculated fair value of the award as described below, and is recognized over the requisite service period, which is generally the vesting period of the equity grant. The Company uses the Black-Scholes pricing model as a method for determining the estimated grant date fair value for all stock options awarded to employees, independent contractors, officers and directors. The expected term of the options is based upon evaluation of historical and expected exercise behavior. The risk-free interest rate is based upon United States Treasury rates at the date of grant with maturity dates approximately equal to the expected life of the grant. Volatility is determined upon historical volatility of our stock and adjusted if future volatility is expected to vary from historical experience. The dividend yield is assumed to be none not The Company used the market value of Company stock to determine the fair value of the performance-based restricted stock awar ded in 2022 2021. The Company used a Black-Scholes model to determ ine the fair value of market-based restricted stock awarded for the year ended December 31, 2022, December 31, 2021.
Use of Estimates, Policy [Policy Text Block]	Management Estimates The preparation of the Company ’s consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates include the realization of accounts receivable, evaluation of impairment of long-lived assets, stock-based compensation expense, provision for income taxes, and the valuation of warrant liabilities and deferred taxes. Actual results could differ from those estimates.
Commitments and Contingencies, Policy [Policy Text Block]	Contingent Liabilities From time-to-time, the Company will have contingent liabilities that arise in the course of business, usually as it pertains to certain lawsuits in which the Company is involved. When a future contingent liability becomes both probable and estimable, the Company will record a liability for the estimated amount, as well as any offsetting receivables in the event the claim is probable to be covered by an insurance policy. In the event there is a range of outcomes and no
Classification and Valuation of Warrants [Policy Text Block]	Classification and Valuation of Warrants The Company analyzes warrant instruments under ASC 480 10, Distinguishing Liabilities from Equity None The Company uses a Black-Scholes model to determine the fair value of certain warrants. The expected term used was the remaining contractual term. Expected volatility is based upon historical volatility over a term consistent with the remaining term. The risk-free interest rate is derived from the yield on zero zero
Going Concern, Policy [Policy Text Block]	Going Concern The Company utilizes a cash forecast model to evaluate the ability of future cash flows to fund continuing operations. The Company analyzes projected cash flows to determine if they are sufficient to fund the operations and obligations of the Company for a period of time that extends twelve Note 5 February 2023 twelve may no Note 11
Reclassification, Comparability Adjustment [Policy Text Block]	Reclassifications Certain prior period amounts have may no
New Accounting Pronouncements, Policy [Policy Text Block]	Accounting Pronouncements Recently Issued In June 2016, 2016 13, Financial Statements - Credit Losses (Topic 326 December 15, 2022. not 2016 13

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation (Tables)	12 Months Ended
Note 1 - Basis of Presentation (Tables)	Dec. 31, 2022
Notes Tables
Schedule of Current Ownership Hierarchy [Table Text Block]	Name State of Formation Ownership Business Heat Waves Hot Oil Service LLC Colorado 100% by Enservco Oil and natural gas well services, including logistics and stimulation. Adler Hot Oil Service, LLC Delaware 100% by Enservco Operations integrated into Heat Waves during 2019. Adler Hot Oil Service, LLC was dissolved during the second quarter of 2021. Heat Waves Water Management LLC Colorado 100% by Enservco Discontinued operations in 2019. Heat Waves Water Management LLC was dissolved during the second quarter of 2021. Dillco Fluid Service, Inc. Kansas 100% by Enservco Discontinued operation in 2018. Dillco Fluid Service, Inc. was dissolved during the second quarter of 2021.

Note 3 - Property and Equipme_2

Note 3 - Property and Equipment (Tables)	12 Months Ended
Note 3 - Property and Equipment (Tables)	Dec. 31, 2022
Notes Tables
Property, Plant and Equipment [Table Text Block]	December 31, 2022 2021 Trucks and vehicles $ 53,473 $ 54,670 Other equipment 2,059 2,059 Buildings and improvements 2,600 3,140 Land 190 378 Total property and equipment 58,322 60,247 Accumulated depreciation (47,086 ) (44,074 ) Property and equipment, net $ 11,236 $ 16,173

Note 4 - Intangible Assets (Tab

Note 4 - Intangible Assets (Tables)	12 Months Ended
Note 4 - Intangible Assets (Tables)	Dec. 31, 2022
Notes Tables
Schedule of Finite-Lived Intangible Assets [Table Text Block]	December 31, 2022 2021 Customer relationships $ 626 $ 626 Patents and trademarks 441 441 Total intangible assets 1,067 1,067 Accumulated amortization (885 ) (668 ) Net carrying value $ 182 $ 399
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	2023 2024 2025 2026 2027 Customer relationships $ 105 $ - $ - $ - $ - Patents and trademarks 77 - - - - Total intangible asset amortization expense $ 182 $ - $ - $ - $ -

Note 5 - Debt (Tables)

Note 5 - Debt (Tables)	12 Months Ended
Note 5 - Debt (Tables)	Dec. 31, 2022
Notes Tables
Schedule of Long-Term Debt Instruments [Table Text Block]	December 31, 2022 2021 Senior Revolving Credit Facility with related party. All future interest through October 15, 2021 accrued to loan pursuant to the Fifth Amendment. Extinguished through the Refinancing. $ - $ 14,102 Utica Facility. Interest at 15.50 June 24, 2026. 5,379 - LSQ Facility. Upfront 0.1 0.021 10 2,945 - March 2022 Convertible Note with related party. Interest at 7.00 March 22, 2028 1,200 - July 2022 Convertible Note with related party. Interest at 7.75 July 15, 2028 1,200 - November 2022 Convertible Note with related party. Interest at 10.00 November 3, 2024 1,200 - Subordinated Promissory Note with related party. Non-interest bearing. $10,000 flat fee paid to consummate loan. Matured June 21, 2022. - 220 Real Estate Loan for a facility in North Dakota. Interest at 5.75% and monthly principal and interest payment of $5,255 until October 3, 2023. Collateralized by land and property purchased with the loan. 54 112 Total long-term debt 11,978 14,434 Less debt discount (548 ) (9 ) Less current portion (4,409 ) (8,967 ) Long-term debt, net of debt discount and current portion $ 7,021 $ 5,458
Schedule of Maturities of Long-Term Debt [Table Text Block]	2023 $ 4,409 2024 2,904 2025 1,955 2026 1,189 2027 240 Thereafter 1,281 Total $ 11,978

Note 6 - Income Taxes (Tables)

Note 6 - Income Taxes (Tables)	12 Months Ended
Note 6 - Income Taxes (Tables)	Dec. 31, 2022
Notes Tables
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	December 31, 2022 2021 Current: Federal $ - $ - State - - Total current - - Deferred: Federal - 234 State - 39 Total deferred - 273 Total income tax expense $ - $ 273
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	December 31, 2022 2021 Computed income taxes at 21 $ (1,171 ) $ (1,634 ) Increase (decrease) in income taxes resulting from: State and local income taxes, net of federal impact (195 ) (272 ) Change in valuation allowance 1,360 2,892 True-up adjustment - (238 ) Paycheck Protection Plan loan forgiveness - (481 ) Other 6 6 Income tax expense $ - $ 273
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	December 31, 2022 2021 Deferred tax assets: Reserves and accruals $ 307 $ 603 Amortization 82 60 Capital losses and other 12 12 Non-qualified stock option expense - 2 Loss carryforwards 9,854 8,700 Total deferred tax assets 10,255 9,377 Valuation allowance (9,006 ) (7,649 ) Net deferred tax assets 1,249 1,728 Deferred tax liabilities: Depreciation (1,522 ) (2,001 ) Total deferred tax liabilities (1,522 ) (2,001 ) Net deferred tax liabilities $ (273 ) $ (273 )

Note 7 - Stockholders' Equity (

Note 7 - Stockholders' Equity (Tables)	12 Months Ended
Note 7 - Stockholders' Equity (Tables)	Dec. 31, 2022
Notes Tables
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]	Weighted Average Weighted Average Remaining Warrants Shares Exercise Price Contractual Life (Years) Outstanding as of January 1, 2021 1,043,667 $ 3.73 4.69 Issued 150,418 2.51 4.12 Expired (2,000 ) 10.50 - Outstanding as of December 31, 2021 1,192,085 3.57 3.75 Issued 568,720 2.11 4.84 Outstanding as of December 31, 2022 1,760,805 $ 3.10 3.43 Exercisable as of December 31, 2022 1,760,805 $ 3.10 3.43

Note 8 - Stock Options and Re_2

Note 8 - Stock Options and Restricted Stock (Tables)	12 Months Ended
Note 8 - Stock Options and Restricted Stock (Tables)	Dec. 31, 2022
Notes Tables
Share-Based Payment Arrangement, Option, Activity [Table Text Block]	Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Outstanding as of January 1, 2021 11,569 $ 5.87 0.53 Forfeited or expired (10,235 ) 5.91 - Outstanding as of December 31, 2021 1,334 5.55 0.42 Forfeited or expired (1,334 ) 5.55 - Outstanding as of December 31, 2022 - $ - - Vested as of December 31, 2022 - $ - - Exercisable as of December 31, 2022 - $ - -
Schedule of Nonvested Share Activity [Table Text Block]	Shares Weighted Average Grant Date Fair Value Restricted shares as of January 1, 2021 24,393 $ 7.32 Granted 165,000 1.05 Vested (6,505 ) 7.94 Forfeited (1,667 ) 8.92 Restricted shares as of December 31, 2021 181,221 1.58 Granted 345,000 2.68 Vested (178,721 ) 2.12 Forfeited (80,000 ) 2.21 Restricted shares as of December 31, 2022 267,500 $ 2.44
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	For the Year Ended December 31, 2022 2021 Stock options - 3,621 Warrants 1,282,457 1,175,719 Weighted average 1,282,457 1,179,340

Note 9 - Commitments and Cont_2

Note 9 - Commitments and Contingencies (Tables)	12 Months Ended
Note 9 - Commitments and Contingencies (Tables)	Dec. 31, 2022
Notes Tables
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Operating Leases Finance Leases For the year ended December 31, 2023 $ 680 $ 14 2024 510 11 2025 374 - 2026 179 - Total future lease commitments 1,743 25 Impact of discounting (155 ) (1 ) Discounted value of lease obligations $ 1,588 $ 24
Lease, Cost [Table Text Block]	For the Year Ended December 31, 2022 2021 Operating lease expense: Current lease cost $ 88 $ 82 Long-term lease cost 799 1,026 Total operating lease cost $ 887 $ 1,108 Finance lease expense: Amortization of right-of-use assets $ 19 $ 64 Interest on lease liabilities 2 6 Total finance lease cost $ 21 $ 70 For the Year Ended December 31, 2022 2021 Operating: Weighted-average lease term (years) 2.87 3.42 Weighted-average discount rate 6.38 % 6.09 % Finance: Weighted-average lease term (years) 1.74 2.35 Weighted-average discount rate 5.59 % 5.67 %

Note 10 - Segment Reporting (Ta

Note 10 - Segment Reporting (Tables)	12 Months Ended
Note 10 - Segment Reporting (Tables)	Dec. 31, 2022
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Production Services Completion and Other Services Unallocated Total For the Year Ended December 31, 2022: Revenues $ 11,211 $ 10,433 $ - $ 21,644 Cost of revenues 10,534 9,695 - 20,229 Segment profit $ 677 $ 738 $ - $ 1,415 Depreciatio n and amortization $ 2,303 $ 1,678 $ 366 $ 4,347 Capital exp enditures $ 127 $ 93 $ - $ 220 Identifiable assets (1) $ 7,044 $ 10,584 $ 158 $ 17,786 For the Year Ended December 31, 2021: Revenues $ 9,012 $ 6,325 $ - $ 15,337 Cost of revenues 9,734 7,605 - 17,339 Segment loss $ (722 ) $ (1,280 ) $ - $ (2,002 ) Depreciatio n and amortization $ 2,397 $ 2,415 $ 403 $ 5,215 Capital exp enditures $ 306 $ 276 $ 11 $ 593 Identifiable assets (1) $ 12,357 $ 9,007 $ 505 $ 21,869
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]	For the Year Ended December 31, 2022 2021 Segment profit (loss) $ 1,415 $ (2,002 ) Sales, general and administrative expenses (4,875 ) (4,185 ) Severance and transition costs (303 ) (7 ) (Loss) gain from disposal of equipment (300 ) 124 Impairment loss - (128 ) Depreciation and amortization (4,347 ) (5,215 ) Loss from operations $ (8,410 ) $ (11,413 )
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	For the Year Ended December 31, 2022 2021 BY GEOGRAPHY: Production Services: Rocky Mountain Region (1) $ 1,542 $ 2,213 Central USA Region (2) 8,948 6,158 Eastern USA Region (3) 721 641 Total Production Services 11,211 9,012 Completion and Other Services: Rocky Mountain Region (1) 8,090 4,521 Central USA Region (2) 842 128 Eastern USA Region (3) 1,501 1,676 Total Completion and Other Services 10,433 6,325 Total Revenues $ 21,644 $ 15,337

Note 1 - Basis of Presentatio_2

Note 1 - Basis of Presentation - Current Ownership Hierarchy (Details)	12 Months Ended
	Dec. 31, 2022
Heat Waves Hot Oil Service LLC at Colorado [Member]
Subsidiary or Equity Method Investee	100%
Adler Hot Oil Service, LLC [Member]
Subsidiary or Equity Method Investee	100%
Heat Waves Water Management LLC at Colorado [Member]
Subsidiary or Equity Method Investee	100%
Dillco Fluid Service, Inc. at Kansas [Member]
Subsidiary or Equity Method Investee	100%

Note 2 - Summary of Significa_2

Note 2 - Summary of Significant Accounting Policies and Recent Developments (Details Textual)						1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 28, 2023 USD ($) $ / shares shares	Feb. 22, 2023 USD ($) $ / shares shares	Nov. 03, 2022 USD ($) $ / shares shares	Jul. 15, 2022 USD ($) $ / shares	Mar. 18, 2022 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Sep. 22, 2022 USD ($)	Mar. 24, 2022 USD ($)	Mar. 18, 2021 USD ($)	Dec. 31, 2020 $ / shares
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) \| $ / shares								$ 3.10	$ 3.57				$ 3.73
Proceeds from Issuance or Sale of Equity, Total								$ 0	$ 9,660,000
Net Income (Loss) Attributable to Parent, Total								(5,575,000)	(8,052,000)
Liabilities, Current, Total								10,241,000	12,532,000
Assets, Current, Total								5,960,000	5,593,000
Working Capital Deficit								4,300,000	6,900,000
Accounts Receivable, Allowance for Credit Loss, Current								150,000	482,000
Accounts Receivable, Credit Loss Expense (Reversal)								(94,000)	268,000
Inventory Write-down								52,000	0
Operating Income (Loss), Total								(8,410,000)	(11,413,000)
Impairment, Long-Lived Asset, Held-for-Use, Total								0
Impairment of Long-Lived Assets to be Disposed of								0	128,000
Goodwill and Intangible Asset Impairment, Total								$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options and Warrants, Outstanding, Number (in shares) \| shares								1,760,805	1,193,419
Share-based Compensation Arrangement by Share-based Payment Award, Options and Warrants, Outstanding, Aggregate Intrinsic Value									$ 0
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs								$ 0	815,000
Employee Retention Tax Credit, Maximum Amount Per Employee Per Quarter							$ 7,000
Employee Retention Tax Credit								0	$ 1,800,000
Payments of Dividends, Total								$ 0
Domestic Tax Authority [Member]
Open Tax Year								2019 2020 2021 2022
Domestic Tax Authority [Member] \| Internal Revenue Service (IRS) [Member]
Open Tax Year								2019 2020 2021 2022
State and Local Jurisdiction [Member]
Open Tax Year								2018 2019 2020 2021 2022
Service-based Restricted Stock [Member]
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements (in shares) \| shares								242,500
Performance Shares [Member]
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements (in shares) \| shares								25,000
Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)								5 years
Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)								30 years
Accounts Receivable [Member] \| Customer Concentration Risk [Member]
Number of Major Customers								1	2
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Customer One [Member]
Concentration Risk, Percentage								55%	31%
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Customer Two [Member]
Concentration Risk, Percentage									14%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member]
Number of Major Customers								1
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Customer One [Member]
Concentration Risk, Percentage								31%	13%
March 2022 Convertible Note Into Common Stock [Member]
Debt Conversion, Original Debt, Amount								$ 1,200,000	$ 0
Subsequent Event [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) \| shares	2,400,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) \| $ / shares	$ 0.55
Subsequent Event [Member] \| March 2022 Convertible Note Into Common Stock [Member]
Debt Conversion, Original Debt, Amount	$ 1,100,000
Debt Conversion, Converted Instrument, Shares Issued (in shares) \| shares	2,275,000
Debt Instrument, Convertible, Shares Issuable (in shares) \| shares	322,402
The February 2023 Public Offering [Member] \| Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues (in shares) \| shares		3,900,000
Proceeds from Issuance or Sale of Equity, Total		$ 3,200,000
Cross River Warrants [Member]
Warrants and Rights Outstanding, Term (Year)			5 years
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) \| shares			568,720
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) \| $ / shares			$ 2.11
Prefunded Warrant [Member] \| Subsequent Event [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) \| shares		3,100,000
Common Warrant [Member] \| Subsequent Event [Member]
Warrants and Rights Outstanding, Term (Year)		5 years
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) \| shares		7,000,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) \| $ / shares		$ 0.55
Class of Warrant or Right, Price Per Share or Warrant (in shares) \| shares		0.005
Common Stock and Common Warrants [Member] \| Subsequent Event [Member]
Class of Warrant or Right, Price Per Share or Warrant (in shares) \| shares		0.50
Prefunded Warrants and Common Warrants [Member] \| Subsequent Event [Member]
Class of Warrant or Right, Price Per Share or Warrant (in shares) \| shares		0.495
The 2022 Refinancing Agreement [Member] \| East West Bank [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Fair Value of Amount Outstanding					$ 13,800,000						$ 13,800,000
Repayments of Lines of Credit					$ 8,400,000
Lines of Credit, Percentage of Net Proceeds From Receivables Financing, Payments for Refinancing.					5%
Lines of Credit, Value of Net Proceeds From Receivables Financing, Payments for Refinancing.					$ 1,000,000							$ 1,000,000
The 2017 Credit Agreement [Member] \| East West Bank [Member] \| Revolving Credit Facility [Member]
Debt Instrument, Decrease, Forgiveness						$ 4,300,000
July 2022 Convertible Note [Member]
Proceeds from Convertible Debt				$ 1,200,000
Debt Instrument, Face Amount								$ 1,200,000
Debt Instrument, Convertible, Conversion Price (in dollars per share) \| $ / shares				$ 1.69				$ 1.69
July 2022 Convertible Note [Member] \| Subsequent Event [Member]
Debt Instrument, Convertible, Shares Issuable (in shares) \| shares	2,400,000
Cross River Revolver [Member] \| Cross River [Member]
Debt Instrument, Face Amount										$ 750,000
Payment of Financing and Stock Issuance Costs, Total			$ 450,000
Cross River Exchange Note [Member] \| Cross River [Member]
Payment of Financing and Stock Issuance Costs, Total			450,000
Extinguishment of Debt, Amount			750,000
The November 2022 Convertible Note [Member]
Debt Instrument, Convertible, Conversion Price (in dollars per share) \| $ / shares								$ 2.11
The November 2022 Convertible Note [Member] \| Minimum [Member]
Debt Instrument Convertible, Price Per Share, Minimum Equity Offering Amount Received								$ 2,000,000
The November 2022 Convertible Note [Member] \| Cross River [Member]
Debt Instrument, Face Amount			$ 1,200,000
March 2022 Convertible Note [Member]
Debt Instrument, Face Amount								$ 1,200,000
March 2022 Convertible Note [Member] \| Subsequent Event [Member]
Debt Instrument, Convertible, Shares Issuable (in shares) \| shares	322,402
March 2022 Convertible Note and July 2022 Convertible Note [Member]
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities (in shares) \| shares								879,947

Note 3 - Property and Equipme_3

Note 3 - Property and Equipment (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Depreciation, Total	$ 4.1	$ 4.9

Note 3 - Property and Equipme_4

Note 3 - Property and Equipment - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property and equipment, gross	$ 58,322	$ 60,247
Accumulated depreciation	(47,086)	(44,074)
Property and equipment, net	11,236	16,173
Vehicles [Member]
Property and equipment, gross	53,473	54,670
Property, Plant and Equipment, Other Types [Member]
Property and equipment, gross	2,059	2,059
Building and Building Improvements [Member]
Property and equipment, gross	2,600	3,140
Land [Member]
Property and equipment, gross	$ 190	$ 378

Note 4 - Intangible Assets (Det

Note 4 - Intangible Assets (Details Textual) - USD ($)	12 Months Ended
Note 4 - Intangible Assets (Details Textual) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Asset, Useful Life (Year)	5 years
Amortization of Intangible Assets	$ 218,000	$ 218,000

Note 4 - Intangible Assets - Co

Note 4 - Intangible Assets - Components of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Intangible assets, gross	$ 1,067	$ 1,067
Accumulated amortization	(885)	(668)
Net carrying value	182	399
Customer Relationships [Member]
Intangible assets, gross	626	626
Intellectual Property [Member]
Intangible assets, gross	$ 441	$ 441

Note 4 - Intangible Assets - Ex

Note 4 - Intangible Assets - Expected Future Amortization Expense (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Expected amortization expense, 2022	$ 182
Expected amortization expense, 2023	0
Expected amortization expense, 2024	0
Expected amortization expense, 2025	0
Expected amortization expense, 2026	0
Customer Relationships [Member]
Expected amortization expense, 2022	105
Expected amortization expense, 2023	0
Expected amortization expense, 2024	0
Expected amortization expense, 2025	0
Expected amortization expense, 2026	0
Patents and Trademarks [Member]
Expected amortization expense, 2022	77
Expected amortization expense, 2023	0
Expected amortization expense, 2024	0
Expected amortization expense, 2025	0
Expected amortization expense, 2026	$ 0

Note 5 - Debt (Details Textual)

Note 5 - Debt (Details Textual) - USD ($)													1 Months Ended			2 Months Ended	3 Months Ended		6 Months Ended	12 Months Ended
Note 5 - Debt (Details Textual) - USD ($)	Jan. 01, 2023	Nov. 03, 2022	Sep. 22, 2022	Jul. 15, 2022	Mar. 24, 2022	Mar. 18, 2022	Mar. 09, 2022	Jul. 08, 2021	Apr. 26, 2021	Feb. 11, 2021	Sep. 23, 2020	Apr. 10, 2020	Mar. 31, 2022	Dec. 31, 2021	Nov. 30, 2021	May 31, 2022	Mar. 31, 2022	Mar. 31, 2021	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Mar. 28, 2023	Dec. 13, 2022	Mar. 22, 2022	Dec. 21, 2021	Nov. 12, 2021	Mar. 18, 2021	Dec. 31, 2020	Aug. 10, 2017
Repayments of Long-term Debt, Total																				$ 58,000	$ 100,000
Long-term Debt, Total														$ 14,434,000						$ 11,978,000	$ 14,434,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)														$ 3.57						$ 3.10	$ 3.57							$ 3.73
Proceeds from Sale of Productive Assets, Total														$ 272,000
Interest Expense, Total																				$ 1,383,000	$ 57,000
Gain (Loss) on Extinguishment of Debt, Total																				4,277,000	0
One Parcels of Real Property in North Dakota [Member] \| Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Disposal Group, Including Discontinued Operation, Consideration																							$ 550,000
Subsequent Event [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)																						$ 0.55
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)																						2,400,000
Heat Waves Hot Oil Service LLC at Colorado [Member]
Maximum Percentage on Advance to Accounts Receivable Factored					85%
Maximum Amount on Advance to Accounts Receivable Factored					$ 10,000,000
Receivable Fee, Percentage of Receivable Purchased in Addition to Fund Usage Daily Fee					0.10%
Funds Usage Daily Fee, Percentage					0.021%
Warrant Issued in Connection with Amended 2017 Credit Agreement [Member]
Warrants and Rights Outstanding, Term (Year)											5 years
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)											1,000,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)											$ 3.75
Warrants and Rights Outstanding											$ 1,400,000
Cross River Warrants [Member]
Warrants and Rights Outstanding, Term (Year)		5 years
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)		568,720
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 2.11
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		568,720
Conversion from 2017 Credit Agreement Loan Concession to Common Stock [Member]
Debt Conversion, Converted Instrument, Shares Issued (in shares)											533,334
Shares Issued, Price Per Share (in dollars per share)											$ 2.0775
Debt Conversion, Converted Instrument, Amount											$ 1,100,000
Revolving Credit Facility [Member]
Long-term Debt, Total														$ 14,102,000						0	14,102,000
Utica Leaseco, LLC [Member] \| Master Lease Agreement [Member] \| Heat Waves Hot Oil Service LLC at Colorado [Member]
Debt Instrument, Face Amount					$ 6,225,000
Debt Instrument, Term (Year)					51 months
Debt Instrument, Periodic Payment, Total					$ 168,075
Debt Instrument, Surcharge Percentage Per Month					1%
Debt Instrument, Percentage That Exceeds Prime Rate for Surcharge					0.25%
Debt Instrument, Minimum Prime Rate Percentage That Triggers Surcharge					3.25%
Debt Instrument, Covenant, Option, Payment of Lease Facility in Exchange for Reduced Payment schedule					$ 1,000,000
Utica Leaseco, LLC [Member] \| Master Lease Agreement [Member] \| Heat Waves Hot Oil Service LLC at Colorado [Member] \| Minimum [Member]
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid, Percentage of Principle					1%
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid					$ 62,250
Utica Leaseco, LLC [Member] \| Master Lease Agreement [Member] \| Heat Waves Hot Oil Service LLC at Colorado [Member] \| Maximum [Member]
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid, Percentage of Principle					10%
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid					$ 622,500
Utica Leaseco, LLC [Member] \| Master Lease Agreement [Member] \| Heat Waves Hot Oil Service LLC at Colorado [Member] \| Subsequent Event [Member] \| Minimum [Member]
Debt Instrument, Periodic Payment, Total	$ 198,000
Cross River [Member]
Repayments of Subordinated Debt, Total																				145,000	0
The 2017 Credit Agreement [Member] \| East West Bank [Member]
Debt Instrument, Interest Rate, Stated Percentage											8.25%
Debt Instrument, Interest Rate, Calculated Monthly and Paid in Arrears											5.25%
Debt Instrument, Interest Rate, Accrued on Principal Balance											3%
Debt Instrument, Covenant, Minimum Liquidity																												$ 1,500,000
Debt Instrument, Covenant, Percentage of Projected Gross Revenue Achieved														80%	80%	80%	80%	70%	70%
Debt Instrument, Covenant, Maximum Capital Expenditures													$ 1,200,000				$ 1,200,000
Repayments of Long-term Debt, Total										$ 3,000,000
Long-term Debt, Total														$ 13,500,000							$ 13,500,000
Debt, Weighted Average Interest Rate														8.25%							8.25%
Line of Credit Facility, Remaining Borrowing Capacity														$ 1,000,000							$ 1,000,000
Long-term Debt, Gross														14,100,000							14,100,000
Interest Payable														38,000							38,000
Debt Instrument, Fee Amount																										$ 70,000
Interest Expense, Total																				100,000	9,000
Debt Instrument, Unamortized Discount, Total																				165,000
The 2017 Credit Agreement [Member] \| East West Bank [Member] \| Equipment Term Loan [Member]
Debt Instrument, Face Amount											$ 17,000,000
The 2017 Credit Agreement [Member] \| East West Bank [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity, Percent of Eligible Receivables																													85%
Line of Credit Facility, Maximum Borrowing Capacity, Percentage of Trucks and Equipment																													85%
Line of Credit Facility, Decrease, Forgiveness											16,000,000
Line of Credit Facility, Maximum Borrowing Capacity											$ 1,000,000
Debt Instrument, Term (Year)									10 years
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage											0.50%
Debt Instrument, Decrease, Forgiveness													$ 4,300,000
The 2022 Refinancing Agreement [Member] \| East West Bank [Member] \| Revolving Credit Facility [Member]
Long-term Debt, Gross																				14,100,000
Line of Credit Facility, Fair Value of Amount Outstanding					$ 13,800,000	$ 13,800,000
Repayments of Lines of Credit						$ 8,400,000
Lines of Credit, Percentage of Net Proceeds From Receivables Financing, Payments for Refinancing.						5%
Lines of Credit, Value of Net Proceeds From Receivables Financing, Payments for Refinancing.						$ 1,000,000																					$ 1,000,000
Long-Term Line of Credit, Noncurrent																				5,400,000
Cross River Working Capital Note [Member]
Debt Instrument, Face Amount																								$ 1,200,000
Debt Instrument, Term (Year)							6 years
Debt Instrument, Interest Rate, Stated Percentage													7%				7%
Subordinated Debt with Related Party [Member]
Debt Instrument, Face Amount																									$ 220,000
Long-term Debt, Total														220,000						0	220,000
Interest Payable																									10,000
Deposit Assets, Total																									$ 210,000
Interest Expense, Total																				5,000	1,000
Repayments of Subordinated Debt, Total																	$ 162,000
July 2022 Convertible Note [Member]
Debt Instrument, Face Amount																				$ 1,200,000
Debt Instrument, Interest Rate, Stated Percentage				7.75%																7.75%
Long-term Debt, Total														0						$ 1,200,000	0
Proceeds from Convertible Debt				$ 1,200,000
Debt Instrument, Convertible, Conversion Price (in dollars per share)				$ 1.69																$ 1.69
Cross River Revolver [Member] \| Cross River [Member]
Debt Instrument, Face Amount			$ 750,000
Debt Instrument, Term (Year)			1 year
Debt Instrument, Interest Rate, Stated Percentage			8%
Cross River Revolver [Member] \| Cross River [Member]
Debt Instrument, Face Amount			$ 750,000
Payment of Financing and Stock Issuance Costs, Total		$ 450,000
Cross River Exchange Note [Member] \| Cross River [Member]
Payment of Financing and Stock Issuance Costs, Total		450,000
Extinguishment of Debt, Amount		750,000
November 2022 Convertible Note [Member]
Debt Instrument, Interest Rate, Stated Percentage																				10%
Long-term Debt, Total														$ 0						$ 1,200,000	0
November 2022 Convertible Note [Member] \| East West Bank [Member]
Debt Instrument, Unamortized Discount, Total																				382,000
November 2022 Convertible Note [Member] \| Cross River [Member]
Debt Instrument, Face Amount		$ 1,200,000
Debt Instrument, Term (Year)		2 years
Debt Instrument, Interest Rate, Stated Percentage		10%
Debt Instrument, Convertible, Conversion Price (in dollars per share)		$ 2.11
November 2022 Convertible Note [Member] \| Cross River [Member] \| Minimum [Member]
Debt Instrument Convertible, Price Per Share, Minimum Equity Offering Amount Received		$ 2
Paycheck Protection Program CARES Act [Member]
Gain (Loss) on Extinguishment of Debt, Total																				$ 0	1,964,000
Paycheck Protection Program CARES Act [Member] \| East West Bank [Member]
Proceeds from Issuance of Long-Term Debt, Total												$ 1,900,000
Debt Instrument, Decrease, Forgiveness								$ 1,900,000
Debt Instrument, Decrease, Forgiveness of Accrued Interest								$ 24,000
Gain (Loss) on Extinguishment of Debt, Total																					$ 2,000,000

Note 5 - Debt - Summary of Long

Note 5 - Debt - Summary of Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Long-term debt	$ 11,978	$ 14,434
Less debt discount	(548)	(9)
Less current portion	(4,409)	(8,967)
Long-term debt, net of debt discount and current portion	7,021	5,458
March 2022 Convertible Note [Member]
Long-term debt	1,200	0
July 2022 Convertible Note [Member]
Long-term debt	1,200	0
November 2022 Convertible Note [Member]
Long-term debt	1,200	0
Subordinated Debt with Related Party [Member]
Long-term debt	0	220
Real Estate Loan 1 [Member]
Long-term debt	54	112
Revolving Credit Facility [Member]
Long-term debt	0	14,102
Utica Leaseco, LLC [Member]
Long-term debt	5,379	0
L S Q [Member]
Long-term debt	$ 2,945	$ 0

Note 5 - Debt - Summary of Lo_2

Note 5 - Debt - Summary of Long-term Debt (Details) (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jul. 15, 2022
March 2022 Convertible Note [Member]
Interest rate	7%
Maturity date	Mar. 22, 2028
July 2022 Convertible Note [Member]
Interest rate	7.75%	7.75%
Maturity date	Jul. 15, 2028
November 2022 Convertible Note [Member]
Interest rate	10%
Maturity date	Nov. 03, 2024
Utica Leaseco, LLC [Member]
Interest rate	15.50%
Maturity date	Jun. 24, 2026
L S Q [Member]
Invoice purchase fee	0.10%
Daily usage fee	0.021%
Maximum availability	$ 10

Note 5 - Debt - Summary of Matu

Note 5 - Debt - Summary of Maturities of Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
2023	$ 4,409
2024	2,904
2025	1,955
2026	1,189
2027	240
Thereafter	1,281
Total	$ 11,978	$ 14,434

Note 6 - Income Taxes (Details

Note 6 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
Note 6 - Income Taxes (Details Textual) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21%	21%
Change in Control Pursuant to Issuance of Common Stock, Shares (in shares)		4,199,998
Deferred Income Tax Expense (Benefit), Total	$ 0	$ 273,000
Deferred Income Tax Liabilities, Net	273,000	273,000
Unrecognized Tax Benefits, Ending Balance	0	0
Deferred Tax Assets, Valuation Allowance	9,006,000	7,649,000
Income Tax Examination, Penalties and Interest Expense, Total	0	$ 0
Domestic Tax Authority [Member]
Operating Loss Carryforwards	40,200,000
Tax Credit Carryforward, Subject to Expiration	$ 18,600,000
Open Tax Year	2019 2020 2021 2022
State and Local Jurisdiction [Member]
Tax Credit Carryforward, Subject to Expiration	$ 7,400,000
Open Tax Year	2018 2019 2020 2021 2022

Note 6 - Income Taxes - Compone

Note 6 - Income Taxes - Components of Income Tax Provision (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
State	$ 0	$ 0
Total current	0	0
Federal	0	234,000
State	0	39,000
Total deferred	0	273,000
Income tax expense	$ 0	$ 273,000

Note 6 - Income Taxes - Reconci

Note 6 - Income Taxes - Reconciliation of Computed Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Computed income taxes at 21% for 2022 and 2021, respectively	$ (1,171)	$ (1,634)
State and local income taxes, net of federal impact	(195)	(272)
Change in valuation allowance	1,360	2,892
True-up adjustment	0	(238)
Other	6	6
Income tax expense	0	273
Paycheck Protection Program CARES Act [Member]
Paycheck Protection Plan loan forgiveness	$ 0	$ (481)

Note 6 - Income Taxes - Recon_2

Note 6 - Income Taxes - Reconciliation of Computed Income Tax (Details) (Parentheticals)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Computed income taxes, rate	21%	21%

Note 6 - Income Taxes - Deferre

Note 6 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Reserves and accruals	$ 307	$ 603
Amortization	82	60
Capital losses and other	12	12
Non-qualified stock option expense	0	2
Loss carryforwards	9,854	8,700
Total deferred tax assets	10,255	9,377
Valuation allowance	(9,006)	(7,649)
Net deferred tax assets	1,249	1,728
Depreciation	(1,522)	(2,001)
Total deferred tax liabilities	(1,522)	(2,001)
Net deferred tax liabilities	$ (273)	$ (273)

Note 7 - Stockholders' Equity_2

Note 7 - Stockholders' Equity (Details Textual) - USD ($)	Nov. 03, 2022	Feb. 11, 2021	Sep. 23, 2020	Nov. 11, 2019	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)					$ 3.10	$ 3.57	$ 3.73
Cross River Exchange Note [Member] \| Cross River [Member]
Extinguishment of Debt, Amount	$ 750,000
The November 2022 Convertible Note [Member] \| Cross River [Member]
Debt Instrument, Face Amount	$ 1,200,000
Warrant Issued in connection with Conversion of Subordinated Debt [Member]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)		150,418
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 2.507
Class of Warrant or Right, Grant Date Fair Value (in dollars per share)		$ 2.02
Class of Warrant or Right, Period Following Issuance at which Warrants are Exercisable (Year)		1 year
Warrants and Rights Outstanding		$ 304,000
Warrant In Connection With Amended Subordinated Loan [Member]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)				41,667
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)				$ 3
Class of Warrant or Right, Grants in Period, Grant Date Fair Value (in dollars per share)				$ 2.40
Warrant Issued in Connection with Amended 2017 Credit Agreement [Member]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)			1,000,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)			$ 3.75
Class of Warrant or Right, Period Following Issuance at which Warrants are Exercisable (Year)			1 year
Warrants and Rights Outstanding			$ 1,400,000
Class of Warrant or Right, Grants in Period, Grant Date Fair Value (in dollars per share)			$ 1.42
Warrants and Rights Outstanding, Term (Year)			5 years
Warrants Issued in Connection With the Conversion of Subordinated Loan Agreement to Common Stock [Member]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)		150,418
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 2.507
Class of Warrant or Right, Period Following Issuance at which Warrants are Exercisable (Year)		1 year
Class of Warrant or Right, Grants in Period, Grant Date Fair Value (in dollars per share)		$ 2.02
Warrants Issued in Connection With the Conversion of Subordinated Loan Agreement to Common Stock [Member] \| Maximum [Member]
Warrants and Rights Outstanding, Term (Year)					5 years
Cross River Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)	568,720
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 2.11
Class of Warrant or Right, Grant Date Fair Value (in dollars per share)	$ 2.66
Class of Warrant or Right, Period Following Issuance at which Warrants are Exercisable (Year)	0 years
Warrants and Rights Outstanding, Term (Year)	5 years
Conversion from Subordinated Promissory Note to Common Stock [Member]
Debt Conversion, Original Debt, Amount		$ 625,000
Debt Conversion, Accrued Interest, Amount		$ 62,000
Debt Conversion, Converted Instrument, Shares Issued (in shares)		601,674

Note 7 - Stockholders' Equity -

Note 7 - Stockholders' Equity - Summary of Warrant Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Outstanding (in shares)	1,192,085	1,043,667
Outstanding, weighted average exercise price (in dollars per share)	$ 3.57	$ 3.73
Outstanding, weighted average remaining contractual life (Year)	3 years 5 months 4 days	3 years 9 months	4 years 8 months 8 days
Issued (in shares)	568,720	150,418
Issued, weighted average exercise price (in dollars per share)	$ 2.11	$ 2.51
Issued, weighted average remaining contractual life (Year)	4 years 10 months 2 days	4 years 1 month 13 days
Expired (in shares)		(2,000)
Expired, weighted average exercise price (in dollars per share)		$ 10.50
Outstanding (in shares)	1,760,805	1,192,085	1,043,667
Outstanding, weighted average exercise price (in dollars per share)	$ 3.10	$ 3.57	$ 3.73
Exercisable (in shares)	1,760,805
Exercisable, weighted average exercise price (in dollars per share)	$ 3.10
Exercisable, weighted average remaining contractual life (Year)	3 years 5 months 4 days

Note 8 - Stock Options and Re_3

Note 8 - Stock Options and Restricted Stock (Details Textual) - USD ($)			12 Months Ended
	Jan. 01, 2016	Jul. 27, 2010	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jul. 18, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)			0	1,334	11,569
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)			0
Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance (in shares)			267,500	181,221	24,393
Restricted Stock [Member] \| Chief Financial Officer [Member]
Share-Based Payment Arrangement, Expense			$ 748,000
Restricted Stock [Member] \| Selling, General and Administrative Expenses [Member]
Share-Based Payment Arrangement, Expense			811,000	$ 130,000
Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value			0
Share-Based Payment Arrangement, Expense			0	$ 0
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total			$ 0
Option Plan 2010 Member
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum		15%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)	381,272		0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)	2,541,809
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)	5 years
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)						159,448
Option Plan 2010 Member \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	1 year
Option Plan 2010 Member \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	3 years
The 2016 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)						692,782
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)			0
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)						533,334
The 2016 Plan [Member] \| Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance (in shares)			67,500

Note 8 - Stock Options and Re_4

Note 8 - Stock Options and Restricted Stock - Summary of Stock Option Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Outstanding (in shares)	1,334	11,569
Outstanding, weighted average exercise price (in dollars per share)	$ 5.55	$ 5.87
Outstanding, weighted average remaining contractual life (Year)		5 months 1 day	6 months 10 days
Forfeited or expired (in shares)	(1,334)	(10,235)
Forfeited or Expired, weighted average exercise price (in dollars per share)	$ 5.55	$ 5.91
Outstanding (in shares)	0	1,334	11,569
Outstanding, weighted average exercise price (in dollars per share)	$ 0	$ 5.55	$ 5.87
Vested (in shares)	0
Vested, weighted average exercise price (in dollars per share)	$ 0
Exercisable (in shares)	0
Exercisable, weighted average exercise price (in dollars per share)	$ 0

Note 8 - Stock Options and Re_5

Note 8 - Stock Options and Restricted Stock - Summary of Restricted Stock Options (Details) - Restricted Stock [Member] - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Balance, Restricted shares (in shares)	181,221	24,393
Balance, Restricted shares, Weighted average grant date fair value (in dollars per share)	$ 1.58	$ 7.32
Granted, Restricted shares (in shares)	345,000	165,000
Granted, Restricted shares, Weighted average grant date fair value (in dollars per share)	$ 2.68	$ 1.05
Vested, non-vested (in shares)	(178,721)	(6,505)
Vested, weighted average grant date fair value (in dollars per share)	$ 2.12	$ 7.94
Forfeited, non-vested (in shares)	(80,000)	(1,667)
Forfeited, weighted average grant date fair value (in dollars per share)	$ 2.21	$ 8.92
Balance, Restricted shares (in shares)	267,500	181,221
Balance, Restricted shares, Weighted average grant date fair value (in dollars per share)	$ 2.44	$ 1.58

Note 8 - Stock Options and Re_6

Note 8 - Stock Options and Restricted Stock - Potentially Dilutive Instruments (Details) - shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Potentially dilutive instruments (in shares)	1,282,457	1,179,340
Share-Based Payment Arrangement, Option [Member]
Potentially dilutive instruments (in shares)	0	3,621
Warrant [Member]
Potentially dilutive instruments (in shares)	1,282,457	1,175,719

Note 9 - Commitments and Cont_3

Note 9 - Commitments and Contingencies (Details Textual) - USD ($)		1 Months Ended		51 Months Ended
	Dec. 31, 2021	Sep. 30, 2022	Jun. 30, 2015	Mar. 31, 2022	Dec. 31, 2022	Jun. 30, 2022
Self-insured Amount per Individual Claim			$ 50,000
Self-insured, Maximum Coverage Policy			$ 1,800,000
Self Insurance Reserve	$ 0				$ 0
Other Income	92,000
Workers' Compensation, Maximum Coverage Policy					1,800,000
Workers' Compensation, Accumulated Payments on Claims					$ 1,800,000
Workers' Compensation, Estimated Accruals				$ 1,600,000
Worker's Compensation, Prepaid Amount	$ 126,000					$ 59,000
Payments for Legal Settlements		$ 9,300,000

Note 9 - Commitments and Cont_4

Note 9 - Commitments and Contingencies - Future Minimum Lease Commitments (Details) $ in Thousands	Dec. 31, 2022 USD ($)
2023, operating leases	$ 680
2023, finance leases	14
2024, operating leases	510
2024, finance leases	11
2025, operating leases	374
2025, finance leases	0
2026, operating leases	179
2026, finance leases	0
Total future lease commitments	1,743
Total future lease commitments	25
Impact of discounting, operating leases	(155)
Impact of discounting, finance leases	(1)
Discounted value of lease obligations, operating leases	1,588
Discounted value of lease obligations, finance leases	$ 24

Note 9 - Commitments and Cont_5

Note 9 - Commitments and Contingencies - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Current lease cost	$ 88	$ 82
Long-term lease cost	799	1,026
Total operating lease cost	887	1,108
Amortization of right-of-use assets	19	64
Interest on lease liabilities	2	6
Total finance lease cost	$ 21	$ 70
Weighted-average lease term (years), operating (Year)	2 years 10 months 13 days	3 years 5 months 1 day
Weighted-average discount rate, operating	6.38%	6.09%
Weighted-average lease term (years), financing (Year)	1 year 8 months 26 days	2 years 4 months 6 days
Weighted-average discount rate, financing	5.59%	5.67%

Note 10 - Segment Reporting - R

Note 10 - Segment Reporting - Reportable Segments (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021
Revenues		$ 21,644	$ 15,337
Cost of revenues		20,229	17,339
Segment profit		1,415	(2,002)
Depreciation and amortization		4,347	5,215
Capital expenditures		220	593
Identifiable assets	[1]	17,786	21,869
Production Services [Member]
Revenues		11,211	9,012
Cost of revenues		10,534	9,734
Segment profit		677	(722)
Depreciation and amortization		2,303	2,397
Capital expenditures		127	306
Identifiable assets	[1]	7,044	12,357
Completion Services [Member]
Revenues		10,433	6,325
Cost of revenues		9,695	7,605
Segment profit		738	(1,280)
Depreciation and amortization		1,678	2,415
Capital expenditures		93	276
Identifiable assets	[1]	10,584	9,007
Unallocated and Other Segments [Member]
Revenues		0	0
Cost of revenues		0	0
Segment profit		0	0
Depreciation and amortization		366	403
Capital expenditures		0	11
Identifiable assets	[1]	$ 158	$ 505

[1]Identifiable assets is calculated by summing the balances of accounts receivable, net; inventories; property and equipment, net; net right-of-use lease assets; assets held for sale; and other assets.

Note 10 - Segment Reporting - I

Note 10 - Segment Reporting - Income From Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Segment profit (loss)	$ 1,415	$ (2,002)
Sales, general and administrative expenses	(4,875)	(4,185)
Severance and transition costs	(303)	(7)
(Loss) gain from disposal of equipment	(300)	124
Impairment loss	0	(128)
Depreciation and amortization	(4,347)	(5,215)
Operating Income (Loss), Total	$ (8,410)	$ (11,413)

Note 10 - Segment Reporting -_2

Note 10 - Segment Reporting - Revenues by Geography (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021
Revenue		$ 21,644	$ 15,337
Production Services [Member]
Revenue		11,211	9,012
Completion Services [Member]
Revenue		10,433	6,325
Rocky Mountain Region [Member] \| Production Services [Member]
Revenue	[1]	1,542	2,213
Rocky Mountain Region [Member] \| Completion Services [Member]
Revenue	[1]	8,090	4,521
Central USA Region [Member] \| Production Services [Member]
Revenue	[2]	8,948	6,158
Central USA Region [Member] \| Completion Services [Member]
Revenue	[2]	842	128
Eastern USA Region [Member] \| Production Services [Member]
Revenue	[3]	721	641
Eastern USA Region [Member] \| Completion Services [Member]
Revenue	[3]	$ 1,501	$ 1,676

[1]Includes the DJ Basin/Niobrara field (northeastern Colorado and southeastern Wyoming), the San Juan Basin (southeastern Colorado and northeastern New Mexico), the Powder River and Green River Basins (northeastern and southwestern Wyoming), the Bakken area (western North Dakota and eastern Montana).[2]Includes the Eagle Ford Shale in southern Texas and the East Texas Oilfield beginning during the second quarter of 2021.[3]Consists of the southern region of the Marcellus Shale formation (southwestern Pennsylvania and northern West Virginia) and the Utica Shale formation (eastern Ohio).

Note 11 - Subsequent Events (De

Note 11 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Mar. 28, 2023	Feb. 22, 2023	Dec. 31, 2022	Dec. 31, 2021	Jun. 30, 2022	Dec. 31, 2020
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)			$ 3.10	$ 3.57		$ 3.73
Proceeds from Issuance or Sale of Equity, Total			$ 0	$ 9,660
Stockholders' Equity Attributable to Parent, Ending Balance			1,169	5,342	$ 5,200	$ 2,555
March 2022 Convertible Note Into Common Stock [Member]
Debt Conversion, Original Debt, Amount			1,200	$ 0
Minimum [Member]
Stockholders' Equity Attributable to Parent, Ending Balance			$ 6,000
Subsequent Event [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	2,400,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 0.55
Subsequent Event [Member] \| March 2022 Convertible Note Into Common Stock [Member]
Debt Conversion, Original Debt, Amount	$ 1,100
Debt Conversion, Converted Instrument, Shares Issued (in shares)	2,275,000
Debt Instrument, Convertible, Shares Issuable (in shares)	322,402
Subsequent Event [Member] \| July 2022 Convertible Note [Member]
Debt Instrument, Convertible, Shares Issuable (in shares)	2,400,000
Subsequent Event [Member] \| Prefunded Warrant [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		3,100,000
Subsequent Event [Member] \| Common Warrant [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		7,000,000
Class of Warrant or Right, Price Per Share or Warrant (in shares)		0.005
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 0.55
Warrants and Rights Outstanding, Term (Year)		5 years
Subsequent Event [Member] \| Common Stock and Common Warrants [Member]
Class of Warrant or Right, Price Per Share or Warrant (in shares)		0.50
Subsequent Event [Member] \| Prefunded Warrants and Common Warrants [Member]
Class of Warrant or Right, Price Per Share or Warrant (in shares)		0.495
The February 2023 Public Offering [Member] \| Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues (in shares)		3,900,000
Proceeds from Issuance or Sale of Equity, Total		$ 3,200