Enservco (ENSV) 10-Q/A 24 May 22 2021 Q2 Quarterly report (amended) Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2021	Jul. 29, 2021
Document Information [Line Items]
Entity Central Index Key	0000319458
Entity Registrant Name	Enservco Corporation
Amendment Flag	true
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2021
Document Type	10-Q/A
Amendment Description	EXPLANATORY NOTE   This Amendment No. 2 (“Amendment No. 2”) to the Quarterly Report on Form 10-Q/A amends the Quarterly Report on Form 10-Q of Enservco Corporation as of and for the quarter ended June 30, 2021, as filed with the Securities and Exchange Commission (“SEC”) on August 5, 2021 (the “Original Filing”), and as amended and filed with the SEC on April 11, 2022 ("Amendment No. 1").   The Company has re-evaluated its accounting for income taxes in connection with a change in control that occurred pursuant to the issuance of 4,199,998 shares of common stock during the first quarter of 2021. This change in control led to a change in management's judgment about the realizability of the Company's deferred tax assets. Pursuant to such re-evaluation, the Company’s management has determined that for the three months ended June 30, 2021 the Company should have recognized a deferred income tax benefit through a partial release of the Company's valuation allowance, as well as recognizing deferred income tax expense for the six months ended June 30, 2021 through the recording of additional valuation allowance.   Therefore, on April 14, 2022, the Company’s management and the audit committee of the Company’s board of directors concluded that the Company’s unaudited interim financial statements included in the Original Filing, as amended by Amendment No. 1, should be restated to recognize the deferred tax liability associated with this limitation. As such, the Company is filing this Amendment No. 2 to affect such restatement.   The restatement has no impact on the Company’s cash position, revenues, operating expenses, loss from operations or Adjusted EBITDA as of and for the three and six months ended June 30, 2021.   We are filing this Amendment No. 2 to amend and restate the Original Filing, as previously amended by Amendment No. 1, with modification as necessary to reflect the restatement. The following items have been amended to reflect the restatement: (i) Part I, Item 1. Financial Statements; and (ii) Part I, Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations. In addition, the Company’s Principal Executive Officer and Interim Principal Financial Officer has provided new certifications dated as of the date of this filing in connection with this Form 10-Q/A (Exhibits 31.1 and 32).   As a result of the factors described above, the Company’s management has concluded that a material weakness existed in the Company’s internal control over financial reporting and that the Company’s disclosure controls and procedures were not effective. A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting such that there is a reasonable possibility that a material misstatement of the financial statements will not be prevented or detected and corrected on a timely basis. For a discussion of management’s consideration of the material weakness identified, see Part I, Item 4. Controls and Procedures included in this Amendment No. 2.   Except as described above, no other information included in the Original Filing, as amended by Amendment No. 1, is being amended or updated by this Amendment No. 2. This Amendment No. 2 continues to describe the conditions as of the date of the Original Filing. Except as expressly contained herein, we have not updated, modified or supplemented the disclosures contained in the Original Filing or Amendment No. 1, and this Amendment No. 2 does not purport to reflect any information or events subsequent to the date of the Original Filing. Accordingly, this Amendment No. 2 should be read in conjunction with the Original Filing, Amendment No. 1 and with our filings with the SEC subsequent to the Original Filing.
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
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 Country 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
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common stock, $.005 par value
Entity Common Stock, Shares Outstanding		11,432,726

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current Assets
Cash and cash equivalents	$ 3,806	$ 1,467
Accounts receivable, net	1,575	1,733
Prepaid expenses and other current assets	1,936	858
Inventories	290	295
Assets held for sale	527	527
Total current assets	8,134	4,880
Property and equipment, net	18,173	20,317
Goodwill	546	546
Intangible assets, net	508	617
Right-of-use asset - finance, net	58	129
Right-of-use asset - operating, net	2,495	2,918
Other assets	434	423
Non-current assets of discontinued operations	0	353
TOTAL ASSETS	30,348	30,183
Current Liabilities
Accounts payable and accrued liabilities	1,623	1,931
Senior revolving credit facility, related party (including future interest payable of $731 and $892, respectively - see Note 7)	1,664	1,593
Lease liability - finance, current	33	65
Lease liability - operating, current	841	854
Current portion of long-term debt	56	100
Current liabilities of discontinued operations	0	31
Total current liabilities	4,217	4,574
Long-Term Liabilities
Senior revolving credit facility, related party (including future interest payable of $249 and $485, respectively - see Note 7)	13,316	17,485
Subordinated debt, related party	0	1,180
Long-term debt, less current portion	2,023	2,052
Lease liability - finance, less current portion	36	55
Lease liability - operating, less current portion	1,782	2,185
Deferred tax liability, net	948	0
Other liabilities	48	88
Long-term liabilities of discontinued operations	0	9
Total long-term liabilities	18,153	23,054
Total liabilities	22,370	27,628
Commitments and Contingencies (Note 9)
Stockholders' Equity
Preferred stock, $.005 par value, 10,000,000 shares authorized, no shares issued or outstanding	0	0
Common stock. $.005 par value, 100,000,000 shares authorized; 11,439,633 and 6,307,868 shares issued as of June 30, 2021 and December 31, 2020, respectively; 6,907 shares of treasury stock as of June 30, 2021 and December 31, 2020, respectively; and 11,432,726 and 6,300,961 shares outstanding as of June 30, 2021 and December 31, 2020, respectively	57	32
Additional paid-in capital	40,785	30,052
Accumulated deficit	(32,864)	(27,529)
Total stockholders' equity	7,978	2,555
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 30,348	$ 30,183

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Senior revolving credit facility, interest payable current	$ 731	$ 892
Senior revolving credit facility, interest payable noncurrent	$ 249	$ 485
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)	11,439,633	6,307,868
Treasury stock, shares (in shares)	6,907	6,907
Common stock, shares outstanding (in shares)	11,432,726	6,300,961

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues
Revenue	$ 3,087	$ 2,141	$ 8,230	$ 11,527
Expenses
Cost of Revenue	3,695	3,330	8,804	11,795
Sales, general, and administrative expenses	992	1,247	1,997	3,009
Severance and transition costs	0	139	0	139
Loss on disposal of assets	19	23	70	38
Depreciation and amortization	1,337	1,310	2,673	2,706
Total operating expenses	6,043	6,049	13,544	17,687
Loss from Operations	(2,956)	(3,908)	(5,314)	(6,160)
Other (expense) income
Interest expense	(11)	(547)	(44)	(1,188)
Other income	1,057	76	979	96
Total other income (expense)	1,046	(471)	935	(1,092)
Loss from continuing operations before taxes	(1,910)	(4,379)	(4,379)	(7,252)
Deferred income tax benefit	477	(9)	(948)	(9)
Loss from continuing operations	(1,433)	(4,388)	(5,327)	(7,261)
Income (loss) from discontinued operations (Note 6)	0	31	(8)	67
Net loss	$ (1,433)	$ (4,357)	$ (5,335)	$ (7,194)
Loss from continuing operations per common share - basic and diluted (in dollars per share)	$ (0.13)	$ (1.19)	$ (0.52)	$ (1.96)
Income from discontinued operations per common share - basic and diluted (in dollars per share)	0	0.01	0	0.01
Net loss per share - basic and diluted (in dollars per share)	$ (0.13)	$ (1.18)	$ (0.52)	$ (1.95)
Weighted average number of common shares outstanding - basic and diluted (in shares)	11,433	3,690	10,316	3,696
Production Services [Member]
Revenues
Revenue	$ 2,229	$ 1,383	$ 4,073	$ 4,585
Expenses
Cost of Revenue	2,346	1,814	4,313	5,308
Depreciation and amortization	572	647	1,100	1,317
Completion Services [Member]
Revenues
Revenue	858	758	4,157	6,942
Expenses
Cost of Revenue	1,349	1,516	4,491	6,487
Depreciation and amortization	$ 661	$ 567	$ 1,373	$ 1,214

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity (Deficit) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2019	3,703
Balance at Dec. 31, 2019	$ 19	$ 22,325	$ (25,020)	$ (2,676)
Stock-based compensation	$ 0	39	0	39
Restricted share cancellation (in shares)	(2)
Restricted share cancellation	$ 0	0	0	0
Net loss	$ 0	0	(2,837)	(2,837)
Restricted share cancellation (in shares)	2
Restricted share cancellation	$ 0	0	0	0
Balance (in shares) at Mar. 31, 2020	3,701
Balance at Mar. 31, 2020	$ 19	22,364	(27,857)	(5,474)
Balance (in shares) at Dec. 31, 2019	3,703
Balance at Dec. 31, 2019	$ 19	22,325	(25,020)	(2,676)
Net loss				(7,194)
Balance (in shares) at Jun. 30, 2020	3,663
Balance at Jun. 30, 2020	$ 19	22,691	(32,214)	(9,504)
Balance (in shares) at Mar. 31, 2020	3,701
Balance at Mar. 31, 2020	$ 19	22,364	(27,857)	(5,474)
Stock-based compensation	$ 0	322	0	322
Restricted share cancellation (in shares)	45
Restricted share cancellation	$ 0	0	0	0
Net loss	$ 0		(4,357)	(4,357)
Restricted share issuance (in shares)	7
Restricted share issuance	$ 0	0	0	0
Restricted share cancellation (in shares)	(45)
Restricted share cancellation	$ 0	0	0	0
Restricted share vested	$ 0	5	0	5
Balance (in shares) at Jun. 30, 2020	3,663
Balance at Jun. 30, 2020	$ 19	22,691	(32,214)	(9,504)
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	24	0	24
Net loss	$ 0	0	(3,902)	(3,902)
Restricted share issuance (in shares)	330
Restricted share issuance	$ 1	310	0	311
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
Balance (in shares) at Mar. 31, 2021	11,433
Balance at Mar. 31, 2021	$ 57	40,760	(31,431)	9,386
Balance (in shares) at Dec. 31, 2020	6,301
Balance at Dec. 31, 2020	$ 32	30,052	(27,529)	2,555
Net loss				(5,335)
Balance (in shares) at Jun. 30, 2021	11,433
Balance at Jun. 30, 2021	$ 57	40,785	(32,864)	7,978
Balance (in shares) at Mar. 31, 2021	11,433
Balance at Mar. 31, 2021	$ 57	40,760	(31,431)	9,386
Stock-based compensation	0	25	0	25
Net loss	$ 0	0	(1,433)	(1,433)
Balance (in shares) at Jun. 30, 2021	11,433
Balance at Jun. 30, 2021	$ 57	$ 40,785	$ (32,864)	$ 7,978

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
OPERATING ACTIVITIES
Net loss	$ (5,335,000)	$ (7,194,000)
Net (loss) income from discontinued operations	(8,000)	67,000
Loss from continuing operations	(5,327,000)	(7,261,000)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization	2,673,000	2,706,000
Deferred income tax expense	948,000	9,000
Loss on disposal of equipment	70,000	38,000
Board compensation issued in equity	311,000	0
Fair value of warrant issued upon conversion of subordinated debt to equity	304,000	0
Stock-based compensation	49,000	361,000
Amortization of debt issuance costs and discount	8,000	95,000
Provision for bad debt expense	3,000	298,000
Changes in operating assets and liabilities
Accounts receivable	156,000	4,674,000
Inventories	5,000	85,000
Prepaid expense and other current assets	(1,078,000)	68,000
Income taxes receivable	0	(14,000)
Amortization of operating lease assets	422,000	416,000
Other assets	46,000	320,000
Accounts payable and accrued liabilities	(260,000)	(2,365,000)
Operating lease liabilities	(416,000)	(416,000)
Other liabilities	(40,000)	(30,000)
Net cash used in operating activities - continuing operations	(2,126,000)	(1,016,000)
Net cash provided by operating activities - discontinued operations	4,000	134,000
Net cash used in operating activities	(2,122,000)	(882,000)
INVESTING ACTIVITIES
Purchases of property and equipment	(195,000)	(306,000)
Proceeds from insurance claims	0	294,000
Proceeds from disposals of property and equipment	65,000	335,000
Net cash (used in) provided by investing activities - continuing operations	(130,000)	323,000
Net cash provided by investing activities - discontinued operations	0	681,000
Net cash (used in) provided by investing activities	(130,000)	1,004,000
FINANCING ACTIVITIES
Gross proceeds from stock issuance	9,660,000	0
Stock issuance costs and registration fees	(815,000)	0
Term loan repayment	(72,000)	(49,000)
Net line of credit (repayments) borrowings	(701,000)	(2,001,000)
TDR accrued future interest payments	(397,000)	0
Payments of finance leases	(83,000)	(245,000)
Net cash provided by (used in) financing activities - continuing operations	4,592,000	(355,000)
Net cash used in financing activities - discontinued operations	(1,000)	(1,000)
Net cash provided by (used in) financing activities	4,591,000	(356,000)
Net Increase (Decrease) in Cash and Cash Equivalents	2,339,000	(234,000)
Cash and Cash Equivalents, beginning of period	1,467,000	663,000
Cash and Cash Equivalents, end of period	3,806,000	429,000
Supplemental Cash Flow Information:
Cash paid for interest	413,000	1,026,000
Supplemental Disclosure of Non-cash Investing and Financing Activities:
Non-cash conversion of subordinated debt and accrued interest to common stock	1,312,000	0
Non-cash conversion of unamortized subordinated debt discount	61,000	0
Equipment Term Loan [Member]
FINANCING ACTIVITIES
Term loan repayment	(3,000,000)	0
Paycheck Protection Program CARES Act [Member]
FINANCING ACTIVITIES
Proceeds from PPP loan	$ 0	$ 1,940,000

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation	6 Months Ended
	Jun. 30, 2021
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 frac water heating (completion and other services) and hot oiling and acidizing (production services). The accompanying unaudited condensed consolidated financial statements have been derived from the accounting records of Enservco Corporation, Heat Waves Hot Oil Service LLC (“Heat Waves”), . (“Dillco”), Heat Waves Water Management LLC (“HWWM”), and Adler Hot Oil Service, LLC ("Adler") (collectively, the “Company”) as of June 30, 2021 December 31, 2020 three six June 30, 2021 2020. 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 operations in 2018. Dillco Fluid Service, Inc was dissolved during the second quarter of 2021. HE Services LLC Nevada 100% by Heat Waves No active business operations. Owned construction equipment used by Heat Waves. HE Services LLC was dissolved on December 23, 2020. The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with accounting principles for interim financial information and with the instructions to Form 10 8 X. not not The accompanying unaudited condensed consolidated financial statements were prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) and follow the same accounting policies and methods of their application as the most recent annual financial statements. These interim financial statements should be read in conjunction with the financial statements and related footnotes included in the Annual Report on Form 10 December 31, 2020.

Note 2 - Restatement of Previou

Note 2 - Restatement of Previously Issued Financial Statements	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Error Correction [Text Block]	Note 2 - Restatement of Previously Issued Financial Statements In accordance with Accounting Standards Codification ("ASC") 740, three June 30, 2021 six June 30, 2021 February 2021 The following tables summarize the effects of the restatements on each financial statement line item as of the date, and for the periods, indicated (in thousands except per share amounts): June 30, 2021 As Previously Restated Adjustments As Restated Condensed Consolidated Balance Sheet (unaudited) Deferred tax liability, net $ - $ 948 $ 948 Total long-term liabilities 17,205 948 18,153 Total liabilities 21,422 948 22,370 Accumulated deficit (31,916 ) (948 ) (32,864 ) Total stockholders' equity 8,926 (948 ) 7,978 For the Three Months Ended June 30, 2021 As Previously Restated Adjustments As Restated Condensed Consolidated Statement of Operations (unaudited) Deferred income tax benefit $ - $ 477 $ 477 Loss from continuing operations (1,910 ) 477 (1,433 ) Net loss (1,910 ) 477 (1,433 ) Loss from continuing operations per common share - basic and diluted (0.17 ) 0.04 (0.13 ) Net loss per share - basic and diluted (0.17 ) 0.04 (0.13 ) For the Six Months Ended June 30, 2021 As Previously Restated Adjustments As Restated Condensed Consolidated Statement of Operations (unaudited) Deferred income tax expense $ - $ (948 ) $ (948 ) Loss from continuing operations (4,379 ) (948 ) (5,327 ) Net loss (4,387 ) (948 ) (5,335 ) Loss from continuing operations per common share - basic and diluted (0.43 ) (0.09 ) (0.52 ) Net loss per share - basic and diluted (0.43 ) (0.09 ) (0.52 ) Additional Paid-in Capital Accumulated Deficit Total Stockholders Equity Consolidated Statement of Stockholders' Equity (Deficit) (unaudited) As Previously Restated: Net loss (for the three months ended March 31, 2021) $ - $ (2,477 ) $ (2,477 ) Balance at March 31, 2021 40,760 (30,006 ) 10,811 Net loss (for the three months ended June 30, 2021) - (1,910 ) (1,910 ) Balance at June 30, 2021 40,785 (31,916 ) 8,926 Adjustments: Net loss (for the three months ended March 31, 2021) $ - $ (1,425 ) $ (1,425 ) Balance at March 31, 2021 - (1,425 ) (1,425 ) Net loss (for the three months ended June 30, 2021) - 477 477 Balance at June 30, 2021 - 477 477 As Restated: Net loss (for the three months ended March 31, 2021) $ - $ (3,902 ) $ (3,902 ) Balance at March 31, 2021 40,760 (31,431 ) 9,386 Net loss (for the three months ended June 30, 2021) - (1,433 ) (1,433 ) Balance at June 30, 2021 40,785 (32,864 ) 7,978 For the Six Months Ended June 30, 2021 As Previously Restated Adjustments As Restated Condensed Consolidated Statement of Cash Flows (unaudited) OPERATING ACTIVITIES Net loss $ (4,387 ) $ (948 ) $ (5,335 ) Net loss from continuing operations (4,379 ) (948 ) (5,327 ) Deferred income tax expense - 948 948

Note 3 - Summary of Significant

Note 3 - Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Significant Accounting Policies [Text Block]	Note 3 - Summary of Significant Accounting Policies Cash and Cash Equivalents The Company considers all highly liquid instruments purchased with an original maturity of three one may Accounts Receivable Accounts receivable are stated at the amounts billed to customers, net of an allowance for 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 status of existing receivables. The losses ultimately incurred could differ materially in the near term from the amounts estimated in determining the allowance. As of June 30, 2021 December 31, 2020, he three six June 30, 2021, he three six June 30, 2020, $2,000) and $298,000 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 three six 30 2021 2020, not write-downs or write-offs of inventory . Property and Equipment Property and equipment consist of (i) trucks, trailers and pickups; (ii) (iii) real property which includes land and buildings used for office and shop facilities and wells used 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 did not three six June 30, 2021 2020. 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 earnings. Leases The Company assesses whether an arrangement is a lease at inception. Leases with an initial term of 12 not not not The Company conducts a major part of its operations from leased facilities. Each of these leases is accounted for as an operating lease. Operating lease assets and liabilities are recognized at the lease commencement date. Operating lease liabilities represent the present value of lease payments not The Company amortizes leasehold improvements over the shorter of the life of the lease or the life of the improvements. The Company has leased trucks and equipment in the normal course of business, which may rental expense on equipment under operating leases over the lease term as it becomes payable; there were no rent escalation terms associated with these equipment leases. The Company records amortization expense on equipment under finance leases on a straight-line basis as well as interest expense based on our implicit borrowing rate at the date of the lease inception. The equipment leases contain purchase options that allow the Company to purchase the leased equipment at the end of the lease term, based on the market price of the equipment at the time of the lease termination. 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 first second 2021, no first 2020, 19 three six 30, 2021. Assets Held for Sale The Company classifies long-lived assets to be sold as held for sale in the period in which all of the following criteria are met: ( 1 2 3 4 one one 5 6 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 three six June 30, 2021 2020, 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 items 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 During the first six 2021, no first 2020, 19 three six June 30, 2021 2020. R evenue 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 30 60 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 See Note 12 Employee Retention Credits The Employee Retention Credits, a provision of the Coronavirus Aid, Relief, and Economic Security Act ("CARES Act"), was extended through December 31, 2021, 2021, second 2021, three six June 30, 2021, Earnings (Loss) Per Share Earnings per Common Share - Basic is computed by dividing net income (loss) by the weighted average number of common shares outstanding for the period. Earnings per Common Share - Diluted earnings is calculated by dividing net income (loss) by the diluted weighted average number of common shares. The diluted weighted average number of common shares is computed using the treasury stock method for common stock that may As of June 30 2021 and 2020 , there were outstanding stock options, unvested restricted stock awards and warrants to acquire an aggregate of and shares of Company common stock, respectively, which have a potentially dilutive impact on earnings per share. As of June 30 , 2021 and 2020, June 30 , 2021 and 2020, not not three six June 30, 2021 2020. 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. 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 not 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 50% may not Interest and penalties associated with tax positions are recorded in the period assessed as Other expense. The Company files income tax returns in the United States and in the states in which it conducts its business operations. The Company ’s United States federal income tax filings for tax years 2017 2020 2016 2020. 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 (an 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 minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability developed 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. Beginning in 2017 not three six 30 , 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 U.S. 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 uses a Lattice 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 The Company used the market-value of Company stock to determine the fair value of the performance-based restricted stock awarded in 2018 2019. 2021 2020. Management Estimates The preparation of the Company’s consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at 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, income tax provision and the valuation of deferred taxes. Actual results could differ from those estimates. Reclassifications Certain prior-period amounts have been reclassified for comparative purposes to conform to the current presentation. These reclassifications have no Accounting Pronouncements In June 2016, 2016 13, 326 December 15, 2022. not 2016 13 In December 2019, 2019 12, 740 740, not December 15, 2020. 2019 12 January 1, 2021, not

Note 4 - Property and Equipment

Note 4 - Property and Equipment	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	Note 4 - Property and Equipment Property and equipment consist of the following (amounts in thousands): June 30, December 31, 2021 2020 Trucks and vehicles $ 57,030 $ 57,224 Other equipment 1,924 1,319 Buildings and improvements 3,191 3,176 Land 378 378 Total property and equipment 62,523 62,097 Accumulated depreciation (44,350) (41,780 ) Property and equipment, net $ 18,173 $ 20,317 For the three six June 30, 2021, $1.2 million and $2.5 million, three six June 30, 2020,

Note 5 - Intangible Assets

Note 5 - Intangible Assets	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	Note 5 The components of our intangible assets are as follows (in thousands): June 30 , 2021 December 31, 2020 Customer relationships $ 626 $ 626 Patents and trademarks 441 441 Total intangible assets 1,067 1,067 Accumulated amortization (559 ) (450 ) Net carrying value $ 508 $ 617 The useful lives of our intangible assets are estimated to be five three six June 30, 2021, roximately $54,000 and $109,000, resp three six June 30, 2020, The following table represents the amortization expense for the next five twelve June 30 ( 2022 2023 2024 2025 2026 Customer relationships $ 125 $ 125 $ 41 $ - $ - Patents and trademarks 93 93 31 - - Total intangible asset amortization expense $ 218 $ 218 $ 72 $ - $ -

Note 6 - Discontinued Operation

Note 6 - Discontinued Operations	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	Note 6 Heat Waves Water Management During December 2019, 2020, 2021. second 2021, Dillco Effective November 1, 2018, second 2021. The following table represents a reconciliation of the carrying amounts of major classes of assets and liabilities disclosed as discontinued operations in the Balance Sheets: June 30 December 31, 2021 2020 Carrying amount of major classes of assets included as part of discontinued operations: Property and equipment, net - 321 Other assets - 32 Total major classes of assets of the discontinued operation $ - $ 353 Carrying amounts of major classes of liabilities included as part of discontinued operations: Accounts payable and accrued liabilities - 6 Other liabilities - 34 Total liabilities included as part of discontinued operations $ - $ 40 The following table represents a reconciliation of the major classes of line items constituting pretax loss of discontinued operations that are disclosed as discontinued operations in the Statements of Operations: Three Months Ended June 30 2021 2020 Revenue $ - $ - Cost of sales - (11 ) Sales, general, and administrative expenses - - Depreciation and amortization - (7 ) Other expense items that are not major - 11 Pretax loss of discontinued operations related to major classes of pretax profit - (7 ) Gain on disposal - 38 Total income on discontinued operations that is presented in the Statements of Operations $ - $ 31 Six Months Ended June 30, 2021 2020 Revenue $ - $ - Cost of sales (1 ) (11 ) Sales, general, and administrative expenses - - Depreciation and amortization (6 ) (13 ) Other expense items that are not major (1 ) (1 ) Pretax loss of discontinued operations related to major classes of pretax profit (8 ) (25 ) Gain on disposal - 92 Total (loss) income on discontinued operations that is presented in the Statements of Operations $ (8 ) $ 67

Note 7 - Debt

Note 7 - Debt	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Debt Disclosure [Text Block]	Note 7 – Debt East West Bank Revolving Credit Facility On August 10, 2017, "2017 2017 2017 September 23, 2020 ( 2017 February 1, 2021 ( January 1, 2021. April 26, 2021 ( 10 November 15, 2021 October 15, 2022. first October 15, 2022, On February 11, 2021, June 30, 2021, $14.0 June 30, 2021, 2017 1.0 million 15.0 June 30, 2021 1.0 470 60, Under the 2017 30, 2021: ( 1 December 31, 2020, not ( 2 three three March 31, 2021, seventy ( 3 In connection with amending the 2017 September 23, 2020, five 533,334 533,334 not March 23, 2021. 1,000,000 September 23, 2021 September 23, 2025. third 2020, $16.0 Debt Issuance Costs We capitalized certain debt issuance costs incurred in connection with the Credit Facility discussed above and these costs were amortized to interest expense over the term of the facility on a straight-line basis. There were no remaining unamortized debt issuance costs as of June 30, 2021 December 31, 2020. three six 30 , 2020 of these costs to Interest Expense. Paycheck Protection Program On April 10, 2020, March 27, 2020, On November 9, 2020, July 8, 2021, third 2021. Notes Payable Long-term debt consists of the following (in thousands): June 30 , December 31, 2021 2020 Senior Revolving Credit Facility with related party. All future interest through October 15, 2021 accrued to loan pursuant to the Fifth Amendment. Interest at 8.25 5.25 3 10 October 15, 2022 $ 14,980 $ 19,078 Paycheck Protection Loan. Interest is at 1 April 10, 2022 1,940 1,940 Subordinated Promissory Note with related party. Interest is at 10 - 1,250 Real Estate Loan for a facility in North Dakota, interest at 5.75 5,255 139 167 Vehicle loans for three pickups, interest at 8.59 3,966 - 31 Note payable to the seller of Heat Waves. The note was garnished by the Internal Revenue Service (“IRS”) in 2009 and is due on demand; paid in annual installments of $ 36,000 - 14 Total 17,059 22,480 Less debt discount - (70 ) Less current portion (1,720 ) (1,693 ) Long-term debt, net of debt discount and current portion $ 15,339 $ 20,717 Aggregate maturities of debt are as follows (in thousands): Twelve Months Ending June 30, 2022 $ 1,720 2023 15,316 2024 23 Thereafter - Total $ 17,059

Note 8 - Income Taxes

Note 8 - Income Taxes	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 8 – Income Taxes Income tax expense during interim periods is based on applying an estimated annual effective income tax rate to year-to-date income, plus any significant unusual or infrequently occurring items which are recorded in the interim period. The provision for income taxes for the six June 30 , 2021 2020 The computation of the annual estimated effective tax rate at each interim period requires certain estimates and significant judgment including, but not may In assessing the realization of deferred tax assets, management considers whether it is more likely than not not As discussed in the Explanatory Note above, during the first 2021, 382, June 30, 2021, six June 30, 2021. six June 30, 2020,

Note 9 - Commitments and Contin

Note 9 - Commitments and Contingencies	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	Note 9 – Commitments and Contingencies As of June 30 , 2021, June 2026. uture minimum lease commitments for these operating lease commitments are as follows (in thousands): Twelve Months Ending June 30 Operating Leases Finance Leases 2022 $ 933 $ 36 2023 644 14 2024 613 14 2025 358 5 2026 359 - Thereafter - - Total future lease commitments 2,907 69 Impact of discounting (284 ) - Discounted value of lease obligations $ 2,623 $ 69 The following table summarizes the components of our gross operating lease costs incurred during the three six June 30, 2021 2020 Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Operating lease expense: Current lease cost $ 19 $ 288 $ 33 $ 579 Long-term lease cost 241 23 512 43 Total operating lease cost $ 260 $ 311 $ 545 $ 622 Finance lease expense: Amortization of right-of-use assets $ 22 $ 37 $ 47 $ 95 Interest on lease liabilities 1 5 3 12 Total lease cost $ 23 $ 42 $ 50 $ 107 Our weighted-average lease term and discount rate used during the six June 30, 2021 2020 Six Months Ended June 30, 2021 2020 Operating Weighted-average lease term (years) 3.73 4.46 Weighted-average discount rate 6.09 % 6.08 % Finance Weighted-average lease term (years) 2.45 1.78 Weighted-average discount rate 5.76 % 6.10 % Self-Insurance In June 2015, first $50,000 in medical costs per indiv The Company had an accrued liability of approximately $ 97,000 and $150,000 as of June 30 , 2021 December 31, 2020, December 31, 2020. January 1, 2021, no Effective April 1, 2015, March 31, 2018. June 30, 2021, not December 31, 2017, June 30, 2021, September 2020, June 30, 2021, no April 1, 2018, no

Note 10 - Stockholders' Equity

Note 10 - Stockholders' Equity	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	Note 10 – Stockholders ’ Equity Conversion of Subordinated Debt to Equity On August 13, 2020, In a separate transaction on February 11, 2021, one February 11, 2022 February 11, 2026. February 3, 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. 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 six months ended June 30 , 2021 Weighted Weighted Average Average Remaining Exercise Contractual Warrants Shares Price Life (Years) Outstanding at December 31, 2020 1,043,667 $ 3.73 4.7 Issued 150,418 2.51 4.2 Expired (2,000 ) 10.50 - Outstanding at June 30, 2021 1,192,085 $ 3.57 4.3 Exercisable at June 30, 2021 41,667 $ 3.00 3.4

Note 11 - Stock Options and Res

Note 11 - Stock Options and Restricted Stock	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Share-Based Payment Arrangement [Text Block]	Note 11 – Stock Options and Restricted Stock Stock Options On July 27, 2010, 2010 “2010 2010 January 1, 2016, 2010 one three 2010 2010 June 30, 2021, no 2010 On July 18, 2016, 2016 “2016 September 29, 2016. may 2016 2010 30 2021, 2,934 182,497 shares of restricted stock 2016 During t six months ended June 30, 2021 2020, The following is a summary of stock option activity for all equity plans for the six June 30, 2021: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Outstanding at December 31 , 2020 11,569 $ 5.87 0.53 Forfeited or Expired 8,635 5.98 - Outstanding at June 30 , 2021 2,934 $ 5.55 0.92 Vested at June 30, 2021 2,934 $ 5.55 0.92 Exercisable at June 30 , 2021 2,934 $ 5.55 0.92 There was no aggregate intrinsic value (the difference between the estimated fair value of the Company’s common stock on June 30 , 2021, . During the three six 30 , 2021 During the three six 30 , 2020 As of June 30 , 2021, 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: Number of Shares Weighted-Average Grant- Date Fair Value Restricted shares at December 31, 2020 24,393 $ 7.32 Granted 165,000 1.05 Vested (5,673 ) 8.11 Forfeited (1,223 ) 9.99 Restricted shares at June 30, 2021 182,497 $ 1.61 During the three June 30, 2021 2020, stock-based compensation costs for restricted stock of approximately $ and $322 ,000, in sales, general, and administrative expenses. six June 30, 2021 2020, stock-based compensation costs for restricted stock of approximately $ and $358 ,000, in sales, general, and administrative expenses. Compensation cost is revised if subsequent information indicates that the actual number of restricted stock vested due to service is likely to differ from previous estimates. The following table sets forth the weighted average outstanding of potentially dilutive instruments for the three six June 30, 2021 2020: Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Stock options 3,471 103,503 4,845 110,840 Restricted stock 1,193,887 43,667 1,159,082 43,667 Warrants 184,150 67,799 177,282 90,983 Weighted average 1,381,508 214,969 1,341,209 245,489 On January 4, 2021, December 31, 2020, October 2019 December 2020. six June 30, 2021, six June 30, 2021, 2021 $45,000 $45,000 third fourth 2021.

Note 12 - Segment Reporting

Note 12 - Segment Reporting	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	Note 12 - Segment Reporting Enservco’s reportable business 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 Completion and Other Services Unallocated 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 Three Months Ended June 30 , 2021: Revenues $ 2,229 $ 858 $ - $ 3,087 Cost of Revenue 2,346 1,349 - 3,695 Segment (Loss) Profit $ (117 ) $ (491 ) $ - $ (608 ) Depreciation and $ 572 $ 661 $ 104 $ 1,337 Capital Expenditures $ 70 $ 80 $ - $ 150 Identifiable assets (1) $ 10,592 $ 12,242 $ 718 $ 23,552 Three Months Ended June 30 Revenues $ 1,383 $ 758 $ - $ 2,141 Cost of Revenue 1,814 1,516 - $ 3,330 Segment (Loss) Profit $ (431 ) $ (758 ) $ - $ (1,189 ) Depreciation and $ 647 $ 567 $ 96 $ 1,310 Capital Expenditures $ 76 $ 66 $ - $ 142 Identifiable assets (1) $ 13,228 $ 15,085 $ 1,135 $ 29,448 ( 1 Identifiable assets is calculated by summing the balances of accounts receivable, net; inventories; property and equipment, net; and other assets. Production Services Completion and Other Services Unallocated Total Six Months Ended June 30, 2021: Revenues $ 4,073 $ 4,157 $ - $ 8,230 Cost of Revenue 4,313 4,491 - 8,804 Segment (Loss) Profit $ (240 ) $ (334 ) $ - $ (574) Depreciation and Amortization $ 1,100 $ 1,373 $ 200 $ 2,673 Capital Expenditures $ 89 $ 106 $ - $ 195 Identifiable assets (1) $ 10,592 $ 12,242 $ 718 $ 23,552 Six Months Ended June 30, 2020: Revenues $ 4,585 $ 6,942 $ - $ 11,527 Cost of Revenue 5,308 6,487 - $ 11,795 Segment (Loss) Profit $ (723 ) $ 455 $ (268 ) Depreciation and Amortization $ 1,317 $ 1,214 $ 175 $ 2,706 Capital Expenditures $ 159 $ 147 $ - $ 306 Identifiable assets (1) $ 13,228 $ 15,085 $ 1,135 $ 29,448 The following table reconciles the segment profits reported above to the income from operations reported in the consolidated statements of operations (in thousands): Three Months Ended June 30 , 2021 2020 Segment profit $ (608 ) $ (1,189 ) Sales, general, and administrative expenses (992 ) (1,247 ) Severance and transition costs - (139 ) Loss on disposals of equipment (19 ) (23 ) Depreciation and amortization (1,337 ) (1,310 ) Loss from operations $ (2,956 ) $ (3,908 ) Six Months Ended June 30, 2021 2020 Segment profit $ (574 ) $ (268 ) Sales, general, and administrative expenses (1,997 ) (3,009 ) Severance and transition costs (139 ) Loss on disposals of equipment (70 ) (38 ) Depreciation and amortization (2,673 ) (2,706 ) Loss from operations $ (5,314 ) $ (6,160 ) Geographic Areas The Company only does business in the United States, in what it believes are three three Three Months Ended June 30 , 2021 2020 BY GEOGRAPHY Production Services: Rocky Mountain Region (1) $ 588 $ 348 Central USA Region (2) 1,414 943 Eastern USA Region (3) 227 92 Total Production Services 2,229 1,383 Completion and Other Services: Rocky Mountain Region (1) 755 711 Central USA Region (2) - (2 ) Eastern USA Region (3) 103 49 Total Completion and Other Services 858 758 Total Revenues $ 3,087 $ 2,141 Six Months Ended June 30, 2021 2020 BY GEOGRAPHY Production Services: Rocky Mountain Region (1) $ 1,032 $ 1,541 Central USA Region (2) 2,654 2,816 Eastern USA Region (3) 387 228 Total Production Services 4,073 4,585 Completion and Other Services: Rocky Mountain Region(1) 2,707 5,717 Central USA Region(2) - 107 Eastern USA Region(3) 1,450 1,118 Total Completion and Other Services 4,157 6,942 Total Revenues $ 8,230 $ 11,527 Notes to tables: ( 1 Includes the D-J 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 Oil Field 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).

Significant Accounting Policies

Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2021
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 one may
Accounts Receivable [Policy Text Block]	Accounts Receivable Accounts receivable are stated at the amounts billed to customers, net of an allowance for 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 status of existing receivables. The losses ultimately incurred could differ materially in the near term from the amounts estimated in determining the allowance. As of June 30, 2021 December 31, 2020, he three six June 30, 2021, he three six June 30, 2020, $2,000) and $298,000
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 three six 30 2021 2020, not write-downs or write-offs of inventory .
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment Property and equipment consist of (i) trucks, trailers and pickups; (ii) (iii) real property which includes land and buildings used for office and shop facilities and wells used 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 did not three six June 30, 2021 2020. 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 earnings.
Lessee, Leases [Policy Text Block]	Leases The Company assesses whether an arrangement is a lease at inception. Leases with an initial term of 12 not not not The Company conducts a major part of its operations from leased facilities. Each of these leases is accounted for as an operating lease. Operating lease assets and liabilities are recognized at the lease commencement date. Operating lease liabilities represent the present value of lease payments not The Company amortizes leasehold improvements over the shorter of the life of the lease or the life of the improvements. The Company has leased trucks and equipment in the normal course of business, which may rental expense on equipment under operating leases over the lease term as it becomes payable; there were no rent escalation terms associated with these equipment leases. The Company records amortization expense on equipment under finance leases on a straight-line basis as well as interest expense based on our implicit borrowing rate at the date of the lease inception. The equipment leases contain purchase options that allow the Company to purchase the leased equipment at the end of the lease term, based on the market price of the equipment at the time of the lease termination.
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 first second 2021, no first 2020, 19 three six 30, 2021. Assets Held for Sale The Company classifies long-lived assets to be sold as held for sale in the period in which all of the following criteria are met: ( 1 2 3 4 one one 5 6 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 three six June 30, 2021 2020, 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 items 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 During the first six 2021, no first 2020, 19 three six June 30, 2021 2020.
Revenue [Policy Text Block]	R evenue 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 30 60 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 See Note 12
Employee Retention Tax Credit [Policy Text Block]	Employee Retention Credits The Employee Retention Credits, a provision of the Coronavirus Aid, Relief, and Economic Security Act ("CARES Act"), was extended through December 31, 2021, 2021, second 2021, three six June 30, 2021,
Earnings Per Share, Policy [Policy Text Block]	Earnings (Loss) Per Share Earnings per Common Share - Basic is computed by dividing net income (loss) by the weighted average number of common shares outstanding for the period. Earnings per Common Share - Diluted earnings is calculated by dividing net income (loss) by the diluted weighted average number of common shares. The diluted weighted average number of common shares is computed using the treasury stock method for common stock that may As of June 30 2021 and 2020 , there were outstanding stock options, unvested restricted stock awards and warrants to acquire an aggregate of and shares of Company common stock, respectively, which have a potentially dilutive impact on earnings per share. As of June 30 , 2021 and 2020, June 30 , 2021 and 2020, not not three six June 30, 2021 2020.
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. 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 not 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 50% may not Interest and penalties associated with tax positions are recorded in the period assessed as Other expense. The Company files income tax returns in the United States and in the states in which it conducts its business operations. The Company ’s United States federal income tax filings for tax years 2017 2020 2016 2020.
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 (an 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 minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability developed 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. Beginning in 2017 not three six 30 , 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 U.S. 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 uses a Lattice 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 The Company used the market-value of Company stock to determine the fair value of the performance-based restricted stock awarded in 2018 2019. 2021 2020.
Use of Estimates, Policy [Policy Text Block]	Management Estimates The preparation of the Company’s consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at 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, income tax provision and the valuation of deferred taxes. Actual results could differ from those estimates.
Reclassification, Comparability Adjustment [Policy Text Block]	Reclassifications Certain prior-period amounts have been reclassified for comparative purposes to conform to the current presentation. These reclassifications have no
New Accounting Pronouncements, Policy [Policy Text Block]	Accounting Pronouncements In June 2016, 2016 13, 326 December 15, 2022. not 2016 13 In December 2019, 2019 12, 740 740, not December 15, 2020. 2019 12 January 1, 2021, not

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation (Tables)	6 Months Ended
	Jun. 30, 2021
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 operations in 2018. Dillco Fluid Service, Inc was dissolved during the second quarter of 2021. HE Services LLC Nevada 100% by Heat Waves No active business operations. Owned construction equipment used by Heat Waves. HE Services LLC was dissolved on December 23, 2020.

Note 2 - Restatement of Previ_2

Note 2 - Restatement of Previously Issued Financial Statements (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]	June 30, 2021 As Previously Restated Adjustments As Restated Condensed Consolidated Balance Sheet (unaudited) Deferred tax liability, net $ - $ 948 $ 948 Total long-term liabilities 17,205 948 18,153 Total liabilities 21,422 948 22,370 Accumulated deficit (31,916 ) (948 ) (32,864 ) Total stockholders' equity 8,926 (948 ) 7,978 For the Three Months Ended June 30, 2021 As Previously Restated Adjustments As Restated Condensed Consolidated Statement of Operations (unaudited) Deferred income tax benefit $ - $ 477 $ 477 Loss from continuing operations (1,910 ) 477 (1,433 ) Net loss (1,910 ) 477 (1,433 ) Loss from continuing operations per common share - basic and diluted (0.17 ) 0.04 (0.13 ) Net loss per share - basic and diluted (0.17 ) 0.04 (0.13 ) For the Six Months Ended June 30, 2021 As Previously Restated Adjustments As Restated Condensed Consolidated Statement of Operations (unaudited) Deferred income tax expense $ - $ (948 ) $ (948 ) Loss from continuing operations (4,379 ) (948 ) (5,327 ) Net loss (4,387 ) (948 ) (5,335 ) Loss from continuing operations per common share - basic and diluted (0.43 ) (0.09 ) (0.52 ) Net loss per share - basic and diluted (0.43 ) (0.09 ) (0.52 ) Additional Paid-in Capital Accumulated Deficit Total Stockholders Equity Consolidated Statement of Stockholders' Equity (Deficit) (unaudited) As Previously Restated: Net loss (for the three months ended March 31, 2021) $ - $ (2,477 ) $ (2,477 ) Balance at March 31, 2021 40,760 (30,006 ) 10,811 Net loss (for the three months ended June 30, 2021) - (1,910 ) (1,910 ) Balance at June 30, 2021 40,785 (31,916 ) 8,926 Adjustments: Net loss (for the three months ended March 31, 2021) $ - $ (1,425 ) $ (1,425 ) Balance at March 31, 2021 - (1,425 ) (1,425 ) Net loss (for the three months ended June 30, 2021) - 477 477 Balance at June 30, 2021 - 477 477 As Restated: Net loss (for the three months ended March 31, 2021) $ - $ (3,902 ) $ (3,902 ) Balance at March 31, 2021 40,760 (31,431 ) 9,386 Net loss (for the three months ended June 30, 2021) - (1,433 ) (1,433 ) Balance at June 30, 2021 40,785 (32,864 ) 7,978 For the Six Months Ended June 30, 2021 As Previously Restated Adjustments As Restated Condensed Consolidated Statement of Cash Flows (unaudited) OPERATING ACTIVITIES Net loss $ (4,387 ) $ (948 ) $ (5,335 ) Net loss from continuing operations (4,379 ) (948 ) (5,327 ) Deferred income tax expense - 948 948

Note 4 - Property and Equipme_2

Note 4 - Property and Equipment (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Property, Plant and Equipment [Table Text Block]	June 30, December 31, 2021 2020 Trucks and vehicles $ 57,030 $ 57,224 Other equipment 1,924 1,319 Buildings and improvements 3,191 3,176 Land 378 378 Total property and equipment 62,523 62,097 Accumulated depreciation (44,350) (41,780 ) Property and equipment, net $ 18,173 $ 20,317

Note 5 - Intangible Assets (Tab

Note 5 - Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Schedule of Finite-Lived Intangible Assets [Table Text Block]	June 30 , 2021 December 31, 2020 Customer relationships $ 626 $ 626 Patents and trademarks 441 441 Total intangible assets 1,067 1,067 Accumulated amortization (559 ) (450 ) Net carrying value $ 508 $ 617
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	2022 2023 2024 2025 2026 Customer relationships $ 125 $ 125 $ 41 $ - $ - Patents and trademarks 93 93 31 - - Total intangible asset amortization expense $ 218 $ 218 $ 72 $ - $ -

Note 6 - Discontinued Operati_2

Note 6 - Discontinued Operations (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Disposal Groups, Including Discontinued Operations [Table Text Block]	June 30 December 31, 2021 2020 Carrying amount of major classes of assets included as part of discontinued operations: Property and equipment, net - 321 Other assets - 32 Total major classes of assets of the discontinued operation $ - $ 353 Carrying amounts of major classes of liabilities included as part of discontinued operations: Accounts payable and accrued liabilities - 6 Other liabilities - 34 Total liabilities included as part of discontinued operations $ - $ 40 Three Months Ended June 30 2021 2020 Revenue $ - $ - Cost of sales - (11 ) Sales, general, and administrative expenses - - Depreciation and amortization - (7 ) Other expense items that are not major - 11 Pretax loss of discontinued operations related to major classes of pretax profit - (7 ) Gain on disposal - 38 Total income on discontinued operations that is presented in the Statements of Operations $ - $ 31 Six Months Ended June 30, 2021 2020 Revenue $ - $ - Cost of sales (1 ) (11 ) Sales, general, and administrative expenses - - Depreciation and amortization (6 ) (13 ) Other expense items that are not major (1 ) (1 ) Pretax loss of discontinued operations related to major classes of pretax profit (8 ) (25 ) Gain on disposal - 92 Total (loss) income on discontinued operations that is presented in the Statements of Operations $ (8 ) $ 67

Note 7 - Debt (Tables)

Note 7 - Debt (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Schedule of Long-Term Debt Instruments [Table Text Block]	June 30 , December 31, 2021 2020 Senior Revolving Credit Facility with related party. All future interest through October 15, 2021 accrued to loan pursuant to the Fifth Amendment. Interest at 8.25 5.25 3 10 October 15, 2022 $ 14,980 $ 19,078 Paycheck Protection Loan. Interest is at 1 April 10, 2022 1,940 1,940 Subordinated Promissory Note with related party. Interest is at 10 - 1,250 Real Estate Loan for a facility in North Dakota, interest at 5.75 5,255 139 167 Vehicle loans for three pickups, interest at 8.59 3,966 - 31 Note payable to the seller of Heat Waves. The note was garnished by the Internal Revenue Service (“IRS”) in 2009 and is due on demand; paid in annual installments of $ 36,000 - 14 Total 17,059 22,480 Less debt discount - (70 ) Less current portion (1,720 ) (1,693 ) Long-term debt, net of debt discount and current portion $ 15,339 $ 20,717
Schedule of Maturities of Long-Term Debt [Table Text Block]	Twelve Months Ending June 30, 2022 $ 1,720 2023 15,316 2024 23 Thereafter - Total $ 17,059

Note 9 - Commitments and Cont_2

Note 9 - Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Twelve Months Ending June 30 Operating Leases Finance Leases 2022 $ 933 $ 36 2023 644 14 2024 613 14 2025 358 5 2026 359 - Thereafter - - Total future lease commitments 2,907 69 Impact of discounting (284 ) - Discounted value of lease obligations $ 2,623 $ 69
Lease, Cost [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Operating lease expense: Current lease cost $ 19 $ 288 $ 33 $ 579 Long-term lease cost 241 23 512 43 Total operating lease cost $ 260 $ 311 $ 545 $ 622 Finance lease expense: Amortization of right-of-use assets $ 22 $ 37 $ 47 $ 95 Interest on lease liabilities 1 5 3 12 Total lease cost $ 23 $ 42 $ 50 $ 107 Six Months Ended June 30, 2021 2020 Operating Weighted-average lease term (years) 3.73 4.46 Weighted-average discount rate 6.09 % 6.08 % Finance Weighted-average lease term (years) 2.45 1.78 Weighted-average discount rate 5.76 % 6.10 %

Note 10 - Stockholders' Equity

Note 10 - Stockholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]	Weighted Weighted Average Average Remaining Exercise Contractual Warrants Shares Price Life (Years) Outstanding at December 31, 2020 1,043,667 $ 3.73 4.7 Issued 150,418 2.51 4.2 Expired (2,000 ) 10.50 - Outstanding at June 30, 2021 1,192,085 $ 3.57 4.3 Exercisable at June 30, 2021 41,667 $ 3.00 3.4

Note 11 - Stock Options and R_2

Note 11 - Stock Options and Restricted Stock (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Share-Based Payment Arrangement, Option, Activity [Table Text Block]	Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Outstanding at December 31 , 2020 11,569 $ 5.87 0.53 Forfeited or Expired 8,635 5.98 - Outstanding at June 30 , 2021 2,934 $ 5.55 0.92 Vested at June 30, 2021 2,934 $ 5.55 0.92 Exercisable at June 30 , 2021 2,934 $ 5.55 0.92
Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]	Number of Shares Weighted-Average Grant- Date Fair Value Restricted shares at December 31, 2020 24,393 $ 7.32 Granted 165,000 1.05 Vested (5,673 ) 8.11 Forfeited (1,223 ) 9.99 Restricted shares at June 30, 2021 182,497 $ 1.61
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Stock options 3,471 103,503 4,845 110,840 Restricted stock 1,193,887 43,667 1,159,082 43,667 Warrants 184,150 67,799 177,282 90,983 Weighted average 1,381,508 214,969 1,341,209 245,489

Note 12 - Segment Reporting (Ta

Note 12 - Segment Reporting (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Production Services Completion and Other Services Unallocated Total Three Months Ended June 30 , 2021: Revenues $ 2,229 $ 858 $ - $ 3,087 Cost of Revenue 2,346 1,349 - 3,695 Segment (Loss) Profit $ (117 ) $ (491 ) $ - $ (608 ) Depreciation and $ 572 $ 661 $ 104 $ 1,337 Capital Expenditures $ 70 $ 80 $ - $ 150 Identifiable assets (1) $ 10,592 $ 12,242 $ 718 $ 23,552 Three Months Ended June 30 Revenues $ 1,383 $ 758 $ - $ 2,141 Cost of Revenue 1,814 1,516 - $ 3,330 Segment (Loss) Profit $ (431 ) $ (758 ) $ - $ (1,189 ) Depreciation and $ 647 $ 567 $ 96 $ 1,310 Capital Expenditures $ 76 $ 66 $ - $ 142 Identifiable assets (1) $ 13,228 $ 15,085 $ 1,135 $ 29,448 Production Services Completion and Other Services Unallocated Total Six Months Ended June 30, 2021: Revenues $ 4,073 $ 4,157 $ - $ 8,230 Cost of Revenue 4,313 4,491 - 8,804 Segment (Loss) Profit $ (240 ) $ (334 ) $ - $ (574) Depreciation and Amortization $ 1,100 $ 1,373 $ 200 $ 2,673 Capital Expenditures $ 89 $ 106 $ - $ 195 Identifiable assets (1) $ 10,592 $ 12,242 $ 718 $ 23,552 Six Months Ended June 30, 2020: Revenues $ 4,585 $ 6,942 $ - $ 11,527 Cost of Revenue 5,308 6,487 - $ 11,795 Segment (Loss) Profit $ (723 ) $ 455 $ (268 ) Depreciation and Amortization $ 1,317 $ 1,214 $ 175 $ 2,706 Capital Expenditures $ 159 $ 147 $ - $ 306 Identifiable assets (1) $ 13,228 $ 15,085 $ 1,135 $ 29,448
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]	Three Months Ended June 30 , 2021 2020 Segment profit $ (608 ) $ (1,189 ) Sales, general, and administrative expenses (992 ) (1,247 ) Severance and transition costs - (139 ) Loss on disposals of equipment (19 ) (23 ) Depreciation and amortization (1,337 ) (1,310 ) Loss from operations $ (2,956 ) $ (3,908 ) Six Months Ended June 30, 2021 2020 Segment profit $ (574 ) $ (268 ) Sales, general, and administrative expenses (1,997 ) (3,009 ) Severance and transition costs (139 ) Loss on disposals of equipment (70 ) (38 ) Depreciation and amortization (2,673 ) (2,706 ) Loss from operations $ (5,314 ) $ (6,160 )
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	Three Months Ended June 30 , 2021 2020 BY GEOGRAPHY Production Services: Rocky Mountain Region (1) $ 588 $ 348 Central USA Region (2) 1,414 943 Eastern USA Region (3) 227 92 Total Production Services 2,229 1,383 Completion and Other Services: Rocky Mountain Region (1) 755 711 Central USA Region (2) - (2 ) Eastern USA Region (3) 103 49 Total Completion and Other Services 858 758 Total Revenues $ 3,087 $ 2,141 Six Months Ended June 30, 2021 2020 BY GEOGRAPHY Production Services: Rocky Mountain Region (1) $ 1,032 $ 1,541 Central USA Region (2) 2,654 2,816 Eastern USA Region (3) 387 228 Total Production Services 4,073 4,585 Completion and Other Services: Rocky Mountain Region(1) 2,707 5,717 Central USA Region(2) - 107 Eastern USA Region(3) 1,450 1,118 Total Completion and Other Services 4,157 6,942 Total Revenues $ 8,230 $ 11,527

Note 1 - Basis of Presentatio_2

Note 1 - Basis of Presentation - Current Ownership Hierarchy (Details)	6 Months Ended
	Jun. 30, 2021
Heat Waves Hot Oil Service LLC at Colorado [Member]
Subsidiary or Equity Method Investee	100.00%
Adler Hot Oil Service, LLC [Member]
Subsidiary or Equity Method Investee	100.00%
Heat Waves Water Management LLC at Colorado [Member]
Subsidiary or Equity Method Investee	100.00%
Dillco Fluid Service, Inc. at Kansas [Member]
Subsidiary or Equity Method Investee	100.00%
HE Services LLC at Nevada [Member]
Subsidiary or Equity Method Investee	100.00%

Note 2 - Restatement of Previ_3

Note 2 - Restatement of Previously Issued Financial Statements (Details Textual) - shares	3 Months Ended	6 Months Ended
	Mar. 31, 2021	Jun. 30, 2021
Change in Control Pursuant to Issuance of Common Stock, Shares (in shares)	4,199,998	4,199,998

Note 2 - Restatement of Previ_4

Note 2 - Restatement of Previously Issued Financial Statements - Effects of Restatements on Financial Statement (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Deferred tax liability, net	$ 948				$ 948		$ 0
Total long-term liabilities	18,153				18,153		23,054
Total liabilities	22,370				22,370		27,628
Accumulated deficit	(32,864)				(32,864)		(27,529)
Total stockholders' equity	7,978	$ 9,386	$ (9,504)	$ (5,474)	7,978	$ (9,504)	2,555	$ (2,676)
Deferred income tax benefit	477		(9)		(948)	(9)
Loss from continuing operations	(1,433)		(4,388)		(5,327)	(7,261)
Net loss	$ (1,433)	(3,902)	$ (4,357)	(2,837)	$ (5,335)	$ (7,194)
Loss from continuing operations per common share - basic and diluted (in dollars per share)	$ (0.13)		$ (1.19)		$ (0.52)	$ (1.96)
Net loss per share - basic and diluted (in dollars per share)	$ (0.13)		$ (1.18)		$ (0.52)	$ (1.95)
Deferred income tax expense	$ (477)		$ 9		$ 948	$ 9
Retained Earnings [Member]
Total stockholders' equity	(32,864)	(31,431)	(32,214)	(27,857)	(32,864)	(32,214)	(27,529)	(25,020)
Net loss	(1,433)	(3,902)	(4,357)	(2,837)
Additional Paid-in Capital [Member]
Total stockholders' equity	40,785	40,760	22,691	22,364	40,785	$ 22,691	$ 30,052	$ 22,325
Net loss	0	0		$ 0
Previously Reported [Member]
Deferred tax liability, net	0				0
Total long-term liabilities	17,205				17,205
Total liabilities	21,422				21,422
Accumulated deficit	(31,916)				(31,916)
Total stockholders' equity	8,926	10,811			8,926
Deferred income tax benefit
Loss from continuing operations	(1,910)				(4,379)
Net loss	$ (1,910)	(2,477)			$ (4,387)
Loss from continuing operations per common share - basic and diluted (in dollars per share)	$ (0.17)				$ (0.43)
Net loss per share - basic and diluted (in dollars per share)	$ (0.17)				$ (0.43)
Deferred income tax expense
Previously Reported [Member] | Retained Earnings [Member]
Total stockholders' equity	(31,916)	(30,006)			(31,916)
Net loss	(1,910)	(2,477)
Previously Reported [Member] | Additional Paid-in Capital [Member]
Total stockholders' equity	40,785	40,760			40,785
Revision of Prior Period, Adjustment [Member]
Deferred tax liability, net	948				948
Total long-term liabilities	948				948
Total liabilities	948				948
Accumulated deficit	(948)				(948)
Total stockholders' equity	(948)				(948)
Deferred income tax benefit	477				(948)
Loss from continuing operations	477				(948)
Net loss	$ 477				$ (948)
Loss from continuing operations per common share - basic and diluted (in dollars per share)	$ 0.04				$ (0.09)
Net loss per share - basic and diluted (in dollars per share)	$ 0.04				$ (0.09)
Deferred income tax expense	$ (477)				$ 948
Revision of Prior Period, Error Correction, Adjustment [Member]
Total stockholders' equity	477	(1,425)			477
Net loss	477	(1,425)
Revision of Prior Period, Error Correction, Adjustment [Member] | Retained Earnings [Member]
Total stockholders' equity	477	(1,425)			$ 477
Net loss	$ 477	$ (1,425)

Note 3 - Summary of Significa_2

Note 3 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Accounts Receivable, Allowance for Credit Loss, Current	$ 213,000		$ 213,000		$ 322,000
Accounts Receivable, Credit Loss Expense (Reversal)	35,000	$ 2,000	3,000	$ 298,000
Inventory Write-down	0	0	0	0
Interest Costs Capitalized	0	0	0	0
Impairment of Long-Lived Assets Held-for-use	0		0
Impairment of Long-Lived Assets to be Disposed of	0	0	0	0
Goodwill and Intangible Asset Impairment, Total	0	$ 0	0	$ 0
Employee Retention Tax Credit, Maximum Amount Per Employee Per Quarter			7,000
Employee Retention Tax Credit	$ 1,000,000		$ 1,200,000
Share-based Compensation Arrangement by Share-based Payment Award, Options and Warrants, Outstanding, Number (in shares)	1,377,516	173,166	1,377,516	173,166
Share-based Compensation Arrangement by Share-based Payment Award, Options and Warrants, Outstanding, Aggregate Intrinsic Value	$ 0	$ 0	$ 0	$ 0
Payments of Dividends, Total	$ 0
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]
Open Tax Year	2017 2018 2019 2020
State and Local Jurisdiction [Member]
Open Tax Year	2016 2017 2018 2019 2020
Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	5 years
Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	30 years

Note 4 - Property and Equipme_3

Note 4 - Property and Equipment (Details Textual) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Depreciation, Total	$ 1.2	$ 1.1	$ 2.5	$ 2.5

Note 4 - Property and Equipme_4

Note 4 - Property and Equipment - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Property and equipment, gross	$ 62,523	$ 62,097
Accumulated depreciation	(44,350)	(41,780)
Property and equipment, net	18,173	20,317
Vehicles [Member]
Property and equipment, gross	57,030	57,224
Property, Plant and Equipment, Other Types [Member]
Property and equipment, gross	1,924	1,319
Building and Building Improvements [Member]
Property and equipment, gross	3,191	3,176
Land [Member]
Property and equipment, gross	$ 378	$ 378

Note 5 - Intangible Assets (Det

Note 5 - Intangible Assets (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Finite-Lived Intangible Asset, Useful Life (Year)	5 years
Amortization of Intangible Assets, Total	$ 54,000	$ 51,000	$ 109,000	$ 102,000

Note 5 - Intangible Assets - Co

Note 5 - Intangible Assets - Components of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Intangible assets, gross	$ 1,067	$ 1,067
Accumulated amortization	(559)	(450)
Net carrying value	508	617
Customer Relationships [Member]
Intangible assets, gross	626	626
Intellectual Property [Member]
Intangible assets, gross	$ 441	$ 441

Note 5 - Intangible Assets - Ex

Note 5 - Intangible Assets - Expected Future Amortization Expense (Details) $ in Thousands	Jun. 30, 2021USD ($)
Expected amortization expense, 2022	$ 218
Expected amortization expense, 2023	218
Expected amortization expense, 2024	72
Expected amortization expense, 2025	0
Expected amortization expense, 2026	0
Customer Relationships [Member]
Expected amortization expense, 2022	125
Expected amortization expense, 2023	125
Expected amortization expense, 2024	41
Expected amortization expense, 2025	0
Expected amortization expense, 2026	0
Patents and Trademarks [Member]
Expected amortization expense, 2022	93
Expected amortization expense, 2023	93
Expected amortization expense, 2024	31
Expected amortization expense, 2025	0
Expected amortization expense, 2026	$ 0

Note 6 - Discontinued Operati_3

Note 6 - Discontinued Operations - Information by Major Classes of Line Items Disclosed as Discontinued Operations in the Consolidated Statements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Total income on discontinued operations that is presented in the Statements of Operations	$ 0	$ 31	$ (8)	$ 67
Dillco Fluid Service, Inc [Member]
Property and equipment, net	0		0		$ 321
Other assets	0		0		32
Total major classes of assets of the discontinued operation	0		0		353
Accounts payable and accrued liabilities	0		0		6
Other liabilities	0		0		34
Total liabilities included as part of discontinued operations	0		0		$ 40
Revenue	0	0	0	0
Cost of sales	0	(11)	(1)	(11)
Sales, general, and administrative expenses	0	0	0	0
Depreciation and amortization	0	(7)	(6)	(13)
Other expense items that are not major	0	11	(1)	(1)
Pretax loss of discontinued operations related to major classes of pretax profit	0	(7)	(8)	(25)
Gain on disposal	0	38	0	92
Total income on discontinued operations that is presented in the Statements of Operations	$ 0	$ 31	$ (8)	$ 67

Note 7 - Debt (Details Textual)

Note 7 - Debt (Details Textual) - USD ($)	Jul. 08, 2021	Feb. 11, 2021	Sep. 23, 2020	Apr. 10, 2020	Sep. 30, 2020	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Aug. 10, 2017
Repayments of Long-term Debt, Total							$ 72,000	$ 49,000
Long-term Debt, Total							$ 17,059,000		$ 22,480,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)							$ 3.57		$ 3.73
Interest Expense [Member]
Amortization of Debt Issuance Costs						$ 24,000		58,000
Other Assets [Member]
Unamortized Debt Issuance Expense							$ 0		$ 0
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
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]
Debt Instrument, Interest Rate, Stated Percentage							8.25%		8.25%
Debt Instrument, Interest Rate, Calculated Monthly and Paid in Arrears							5.25%		5.25%
Debt Instrument, Interest Rate, Accrued on Principal Balance							3.00%		3.00%
Long-term Debt, Total							$ 14,980,000		$ 19,078,000
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			3.00%
Debt Instrument, Covenant, Minimum Liquidity									$ 1,500,000
Debt Instrument, Covenant, Percentage of Projected Gross Revenue Achieved							70.00%
Debt Instrument, Covenant, Maximum Capital Expenditures							$ 1,200,000
Gains (Losses) on Restructuring of Debt					$ 11,900,000
The 2017 Credit Agreement [Member] | East West Bank [Member] | Equipment Term Loan [Member]
Debt Instrument, Face Amount			$ 17,000,000
Repayments of Long-term Debt, Total		$ 3,000,000
Long-term Debt, Total							$ 14,000,000
Debt, Weighted Average Interest Rate							8.25%
Long-term Debt, Gross							$ 15,000,000
Interest Payable							1,000,000
The 2017 Credit Agreement [Member] | East West Bank [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity, Percent of Eligible Receivables										85.00%
Line of Credit Facility, Maximum Borrowing Capacity, Percentage of Trucks and Equipment										85.00%
Line of Credit Facility, Decrease, Forgiveness			16,000,000
Line of Credit Facility, Maximum Borrowing Capacity			$ 1,000,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage			0.50%
Line of Credit Facility, Remaining Borrowing Capacity							$ 1,000,000
Paycheck Protection Program CARES Act [Member]
Debt Instrument, Interest Rate, Stated Percentage							1.00%		1.00%
Long-term Debt, Total							$ 1,940,000		$ 1,940,000
Proceeds from Issuance of Long-term Debt, Total							$ 0	$ 1,940,000
Paycheck Protection Program CARES Act [Member] | East West Bank [Member]
Proceeds from Issuance of Long-term Debt, Total				$ 1,939,900
Debt Instrument, Decrease, Forgiveness	$ 1,900,000
Debt Instrument, Decrease, Forgiveness of Accrued Interest	$ 24,000

Note 7 - Debt - Summary of Long

Note 7 - Debt - Summary of Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Long-term debt	$ 17,059	$ 22,480
Less debt discount	0	(70)
Less current portion	(1,720)	(1,693)
Long-term debt, net of debt discount and current portion	15,339	20,717
Subordinated Promissory Note 1 [Member]
Long-term debt	0	1,250
Real Estate Loan 1 [Member]
Long-term debt	139	167
Vehicle Loans for Trucks [Member]
Long-term debt	0	31
Note Payable To Seller Of Heat Waves [Member]
Long-term debt	0	14
Paycheck Protection Program CARES Act [Member]
Long-term debt	1,940	1,940
Revolving Credit Facility [Member]
Long-term debt	$ 14,980	$ 19,078

Note 7 - Debt - Summary of Lo_2

Note 7 - Debt - Summary of Long-term Debt (Details) (Parentheticals) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Subordinated Promissory Note 1 [Member]
Interest rate	10.00%	10.00%
Debt Instrument, Interest Rate, Stated Percentage	10.00%	10.00%
Real Estate Loan 1 [Member]
Interest rate	5.75%	5.75%
Debt Instrument, Interest Rate, Stated Percentage	5.75%	5.75%
Periodic principal and interest payment	$ 5,255	$ 5,255
Vehicle Loans for Trucks [Member]
Periodic principal and interest payment	$ 3,966	$ 3,966
Interest rate	8.59%	8.59%
Note Payable To Seller Of Heat Waves [Member]
Periodic principal and interest payment	$ 36,000	$ 36,000
Paycheck Protection Program CARES Act [Member]
Interest rate	1.00%	1.00%
Maturity date	Apr. 10, 2022	Apr. 10, 2022
Debt Instrument, Interest Rate, Stated Percentage	1.00%	1.00%
Revolving Credit Facility [Member]
Interest rate	8.25%	8.25%
Interest rate, payable monthly	5.25%	5.25%
Interest rate, accrued	3.00%	3.00%
Amortization period (Year)	10 years	10 years
Maturity date	Oct. 15, 2022	Oct. 15, 2022
Debt Instrument, Interest Rate, Stated Percentage	8.25%	8.25%

Note 7 - Debt - Summary of Matu

Note 7 - Debt - Summary of Maturities of Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
2022	$ 1,720
2023	15,316
2024	23
Thereafter	0
Total	$ 17,059	$ 22,480

Note 8 - Income Taxes (Details

Note 8 - Income Taxes (Details Textual) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%	21.00%
Change in Control Pursuant to Issuance of Common Stock, Shares (in shares)		4,199,998		4,199,998
Deferred Tax Liabilities, Net, Total	$ 900,000			$ 900,000
Deferred Income Tax Expense (Benefit), Total	$ (477,000)		$ 9,000	$ 948,000	$ 9,000
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount, Total					$ 1.8

Note 9 - Commitments and Cont_3

Note 9 - Commitments and Contingencies (Details Textual) - USD ($)	1 Months Ended	39 Months Ended
	Jun. 30, 2015	Mar. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Self-insured Amount per Individual Claim	$ 50,000
Self-insured, Maximum Coverage Policy	$ 1,800,000
Self Insurance Reserve			$ 97,000	$ 150,000
Workers' Compensation, Maximum Coverage Policy		$ 1,800,000
Workers' Compensation, Accumulated Payments on Claims		1,800,000
Workers' Compensation, Estimated Accruals		$ 1,600,000
Other Noncurrent Assets [Member]
Worker's Compensation, Prepaid Amount			$ 189,000

Note 9 - Commitments and Cont_4

Note 9 - Commitments and Contingencies - Future Minimum Lease Commitments (Details) $ in Thousands	Jun. 30, 2021USD ($)
2022, operating leases	$ 933
2022, finance leases	36
2023, operating leases	644
2023, finance leases	14
2024, operating leases	613
2024, finance leases	14
2025, operating leases	358
2025, finance leases	5
2026, operating leases	359
2026, finance leases	0
Thereafter, operating leases	0
Thereafter, finance leases	0
Total future lease commitments, operating leases	2,907
Total future lease commitments, finance leases	69
Impact of discounting, operating leases	(284)
Impact of discounting, finance leases	0
Discounted value of lease obligations, operating leases	2,623
Discounted value of lease obligations, finance leases	$ 69

Note 9 - Commitments and Cont_5

Note 9 - Commitments and Contingencies - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Current lease cost	$ 19	$ 288	$ 33	$ 579
Long-term lease cost	241	23	512	43
Total operating lease cost	260	311	545	622
Amortization of right-of-use assets	22	37	47	95
Interest on lease liabilities	1	5	3	12
Total lease cost	$ 23	$ 42	$ 50	$ 107
Weighted-average lease term (years), operating (Year)	3 years 8 months 23 days	4 years 5 months 15 days	3 years 8 months 23 days	4 years 5 months 15 days
Weighted-average discount rate, operating	6.09%	6.08%	6.09%	6.08%
Weighted-average lease term (years), financing (Year)	2 years 5 months 12 days	1 year 9 months 10 days	2 years 5 months 12 days	1 year 9 months 10 days
Weighted-average discount rate, financing	5.76%	6.10%	5.76%	6.10%

Note 10 - Stockholders' Equit_2

Note 10 - Stockholders' Equity (Details Textual) - USD ($)	Feb. 11, 2021	Sep. 23, 2020	Aug. 13, 2020	Nov. 11, 2019	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)					$ 3.57		$ 3.73
Fair Value Adjustment of Warrants					$ 304,000	$ 0
Class of Warrant or Right, Issued During Period (in shares)					150,418
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
Fair Value Adjustment of Warrants	$ 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, Issued During Period (in shares)				1
Warrants and Rights Outstanding, Term (Year)				5 years
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
Class of Warrant or Right, Issued During Period (in shares)		1
Warrants and Rights Outstanding, Term (Year)		5 years
Class of Warrant or Right, Grants in Period, Grant Date Fair Value (in dollars per share)		$ 1.42
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, Issued During Period (in shares)	1
Warrants and Rights Outstanding, Term (Year)	5 years
Class of Warrant or Right, Grants in Period, Grant Date Fair Value (in dollars per share)	$ 2.02
Subordinated Debt [Member]
Gain (Loss) on Extinguishment of Debt, Total			$ 552,000
Conversion from Subordinated Promissory Note to Common Stock [Member]
Debt Conversion, Original Debt, Percentage of Total Debt	50.00%		50.00%
Debt Conversion, Original Debt, Amount	$ 1,250,000		$ 1,250,000
Debt Conversion, Accrued Interest, Amount	$ 62,000		$ 265,000
Debt Conversion, Converted Instrument, Shares Issued (in shares)	601,674		403,602
Debt Conversion, Converted Instrument, Amount			$ 963,000

Note 10 - Stockholders' Equit_3

Note 10 - Stockholders' Equity - Summary of Warrant Activity (Details) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Outstanding (in shares)	1,043,667
Outstanding, weighted average exercise price (in dollars per share)	$ 3.73
Outstanding, weighted average remaining contractual life (Year)	4 years 3 months 18 days	4 years 8 months 12 days
Issued (in shares)	150,418
Issued, weighted average exercise price (in dollars per share)	$ 2.51
Issued, weighted average remaining contractual life (Year)	4 years 2 months 12 days
Expired (in shares)	(2,000)
Expired, weighted average exercise price (in dollars per share)	$ 10.50
Outstanding (in shares)	1,192,085	1,043,667
Outstanding, weighted average exercise price (in dollars per share)	$ 3.57	$ 3.73
Exercisable (in shares)	41,667
Exercisable, weighted average exercise price (in dollars per share)	$ 3
Exercisable, weighted average remaining contractual life (Year)	3 years 4 months 24 days

Note 11 - Stock Options and R_3

Note 11 - Stock Options and Restricted Stock (Details Textual) - USD ($)	Jan. 04, 2021	Jan. 01, 2016	Jul. 27, 2010	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Jul. 18, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)				2,934				2,934		11,569
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)								0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value				$ 0				$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in shares)								0	0
Share-Based Payment Arrangement, Nonemployee [Member]
Stock Issued During Period, Value, Issued for Services	$ 311,000
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent										$ 221,000
Stock Issued During Period, Shares, Issued for Services (in shares)					118,184
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance (in shares)				182,497				182,497		24,393
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)								165,000
Restricted Stock [Member] | Share-Based Payment Arrangement, Nonemployee [Member]
Share-based Payment Arrangement, Expense								$ 45,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)								48,129
Restricted Stock [Member] | Selling, General and Administrative Expenses [Member]
Share-based Payment Arrangement, Expense					$ 25,000		$ 322,000	$ 49,000	$ 358,000
Share-Based Payment Arrangement, Option [Member]
Share-based Payment Arrangement, Expense				$ 0		$ 1,000		0	$ 3,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total				$ 0				$ 0
Option Plan 2010 Member
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum			15.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)		381,272		0				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)				2,934				2,934
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)				182,497				182,497

Note 11 - Stock Options and R_4

Note 11 - Stock Options and Restricted Stock - Summary of Stock Option Activity (Details) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Outstanding (in shares)	11,569
Outstanding, weighted average exercise price (in dollars per share)	$ 5.87
Outstanding, weighted average remaining contractual life (Year)	11 months 1 day	6 months 10 days
Forfeited or Expired (in shares)	8,635
Forfeited or Expired, weighted average exercise price (in dollars per share)	$ 5.98
Outstanding (in shares)	2,934	11,569
Outstanding, weighted average exercise price (in dollars per share)	$ 5.55	$ 5.87
Vested (in shares)	2,934
Vested, weighted average exercise price (in dollars per share)	$ 5.55
Vested, weighted average remaining contractual life (Year)	11 months 1 day
Exercisable (in shares)	2,934
Exercisable, weighted average exercise price (in dollars per share)	$ 5.55
Exercisable, weighted average remaining contractual life (Year)	11 months 1 day

Note 11 - Stock Options and R_5

Note 11 - Stock Options and Restricted Stock - Summary of Restricted Stock Options (Details) - Restricted Stock [Member]	6 Months Ended
	Jun. 30, 2021$ / sharesshares
Balance, Restricted shares (in shares) | shares	24,393
Balance, Restricted shares, Weighted average grant date fair value (in dollars per share) | $ / shares	$ 7.32
Granted, Restricted shares (in shares) | shares	165,000
Granted, Restricted shares, Weighted average grant date fair value (in dollars per share) | $ / shares	$ 1.05
Vested, Restricted shares (in shares) | shares	(5,673)
Vested, Restricted shares, Weighted average grant date fair value (in dollars per share) | $ / shares	$ 8.11
Forfeited, Restricted shares (in shares) | shares	(1,223)
Forfeited, Restricted shares, Weighted average grant date fair value (in dollars per share) | $ / shares	$ 9.99
Balance, Restricted shares (in shares) | shares	182,497
Balance, Restricted shares, Weighted average grant date fair value (in dollars per share) | $ / shares	$ 1.61

Note 11 - Stock Options and R_6

Note 11 - Stock Options and Restricted Stock - Potentially Dilutive Instruments (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Potentially dilutive instruments (in shares)	1,381,508	214,969	1,341,209	245,489
Share-Based Payment Arrangement, Option [Member]
Potentially dilutive instruments (in shares)	3,471	103,503	4,845	110,840
Restricted Stock [Member]
Potentially dilutive instruments (in shares)	1,193,887	43,667	1,159,082	43,667
Warrant [Member]
Potentially dilutive instruments (in shares)	184,150	67,799	177,282	90,983

Note 12 - Segment Reporting - R

Note 12 - Segment Reporting - Reportable Segments (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues		$ 3,087	$ 2,141	$ 8,230	$ 11,527
Cost of Revenue		3,695	3,330	8,804	11,795
Segment (Loss) Profit		(608)	(1,189)	(574)	(268)
Depreciation and amortization		1,337	1,310	2,673	2,706
Capital Expenditures		150	142	195	306
Identifiable assets	[1]	23,552	29,448	23,552	29,448
Production Services [Member]
Revenues		2,229	1,383	4,073	4,585
Cost of Revenue		2,346	1,814	4,313	5,308
Segment (Loss) Profit		(117)	(431)	(240)	(723)
Depreciation and amortization		572	647	1,100	1,317
Capital Expenditures		70	76	89	159
Identifiable assets	[1]	10,592	13,228	10,592	13,228
Completion Services [Member]
Revenues		858	758	4,157	6,942
Cost of Revenue		1,349	1,516	4,491	6,487
Segment (Loss) Profit		(491)	(758)	(334)	455
Depreciation and amortization		661	567	1,373	1,214
Capital Expenditures		80	66	106	147
Identifiable assets	[1]	12,242	15,085	12,242	15,085
Unallocated and Other Segments [Member]
Revenues		0	0	0	0
Cost of Revenue		0	0	0	0
Segment (Loss) Profit		0	0	0
Depreciation and amortization		104	96	200	175
Capital Expenditures		0	0	0	0
Identifiable assets	[1]	$ 718	$ 1,135	$ 718	$ 1,135
[1]	Identifiable assets is calculated by summing the balances of accounts receivable, net; inventories; property and equipment, net; and other assets.

Note 12 - Segment Reporting - I

Note 12 - Segment Reporting - Income From Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment profit	$ (608)	$ (1,189)	$ (574)	$ (268)
Sales, general, and administrative expenses	(992)	(1,247)	(1,997)	(3,009)
Severance and transition costs	0	(139)	0	(139)
Loss on disposals of equipment	(19)	(23)	(70)	(38)
Depreciation and amortization	(1,337)	(1,310)	(2,673)	(2,706)
Loss from operations	$ (2,956)	$ (3,908)	$ (5,314)	$ (6,160)

Note 12 - Segment Reporting -_2

Note 12 - Segment Reporting - Revenues by Geography (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue		$ 3,087	$ 2,141	$ 8,230	$ 11,527
Production Services [Member]
Revenue		2,229	1,383	4,073	4,585
Completion Services [Member]
Revenue		858	758	4,157	6,942
Rocky Mountain Region [Member] | Production Services [Member]
Revenue	[1]	588	348	1,032	1,541
Rocky Mountain Region [Member] | Completion Services [Member]
Revenue	[1]	755	711	2,707	5,717
Central USA Region [Member] | Production Services [Member]
Revenue	[2]	1,414	943	2,654	2,816
Central USA Region [Member] | Completion Services [Member]
Revenue	[2]	0	(2)	0	107
Eastern USA Region [Member] | Production Services [Member]
Revenue	[3]	227	92	387	228
Eastern USA Region [Member] | Completion Services [Member]
Revenue	[3]	$ 103	$ 49	$ 1,450	$ 1,118
[1]	Includes the D-J 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 Oil Field 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).