Note 5 - Debt (Details Textual) - USD ($)											1 Months Ended				2 Months Ended	3 Months Ended		4 Months Ended	12 Months Ended
	Mar. 24, 2022	Mar. 18, 2022	Mar. 09, 2022	Dec. 23, 2021	Jul. 08, 2021	Apr. 26, 2021	Mar. 18, 2021	Feb. 11, 2021	Sep. 23, 2020	Apr. 10, 2020	May 31, 2022	Dec. 31, 2021	Nov. 30, 2021	Oct. 31, 2021	Mar. 31, 2022	Mar. 31, 2022	Sep. 30, 2021	Sep. 30, 2022	Dec. 31, 2021	Dec. 31, 2020	Mar. 22, 2022	Dec. 21, 2021	Nov. 12, 2021	Mar. 24, 2021	Dec. 31, 2019	Aug. 10, 2017
Long-term Debt, Total												$ 14,434,000							$ 14,434,000	$ 22,480,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)												$ 3.57							$ 3.57	$ 3.73					$ 3.34
Gains (Losses) on Restructuring of Debt																			$ 0	$ 11,916,000
Effect on Basic and Diluted Earnings Per Share, Convertible Securities (in dollars per share)																				$ 2.85
Proceeds from Sale of Productive Assets, Total												$ 272,000
Interest Expense, Total																			57,000	$ 1,695,000
Gain (Loss) on Extinguishment of Debt, Total																			$ 1,964,000	$ (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
Subsequent Event [Member] | Heat Waves Hot Oil Service LLC at Colorado [Member]
Maximum Percentage on Advance to Accounts Receivable Factored	85.00%
Maximum Amount on Advance to Accounts Receivable Factored	$ 10,000,000.0
Receivable Fee, Percentage of Receivable Purchased in Addition to Fund Usage Daily Fee	0.10%
Funds Usage Daily Fee, Percentage	0.021%
Revolving Credit Facility [Member]
Debt Instrument, Term (Year)																			10 years	10 years
Debt Instrument, Interest Rate, Stated Percentage												8.25%							8.25%	8.25%
Debt Instrument, Interest Rate, Calculated Monthly and Paid in Arrears												5.25%							5.25%	5.25%
Debt Instrument, Interest Rate, Accrued on Principal Balance												3.00%							3.00%	3.00%
Long-term Debt, Total												$ 14,102,000							$ 14,102,000	$ 19,078,000
Utica Leaseco, LLC [Member] | Master Lease Agreement [Member] | Subsequent Event [Member] | Heat Waves Hot Oil Service LLC at Colorado [Member]
Debt Instrument, Face Amount	$ 6,225,000
Debt Instrument, Term (Year)	51 months
Debt Instrument, Periodic Payment, Total	$ 168,075
Debt Instrument, Covenant, Option, Payment of Lease Facility in Exchange for Reduced Payment schedule	$ 1,000,000.0
Utica Leaseco, LLC [Member] | Master Lease Agreement [Member] | Subsequent Event [Member] | Heat Waves Hot Oil Service LLC at Colorado [Member] | Minimum [Member]
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid, Percentage of Principle	1.00%
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid	$ 62,250
Utica Leaseco, LLC [Member] | Master Lease Agreement [Member] | Subsequent Event [Member] | Heat Waves Hot Oil Service LLC at Colorado [Member] | Maximum [Member]
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid, Percentage of Principle	10.00%
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid	$ 622,500
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												80.00%	80.00%				70.00%
Debt Instrument, Covenant, Maximum Capital Expenditures																	$ 1,200,000
Repayments of Long-term Debt, Total								$ 3,000,000.0
Long-term Debt, Total												$ 13,500,000							$ 13,500,000
Debt, Weighted Average Interest Rate												8.25%							8.25%
Line of Credit Facility, Remaining Borrowing Capacity																	1,000,000.0
Long-term Debt, Gross												$ 14,100,000							$ 14,100,000
Interest Payable												38,000							38,000
Debt Instrument, Non-compliance, Projected Gross Revenue, Amount Lower Than Requirement														$ 172,000
Debt Instrument, Fee Amount																							$ 70,000
Gains (Losses) on Restructuring of Debt																				11,900,000
The 2017 Credit Agreement [Member] | East West Bank [Member] | Forecast [Member]
Debt Instrument, Covenant, Percentage of Projected Gross Revenue Achieved											80.00%							70.00%
The 2017 Credit Agreement [Member] | East West Bank [Member] | Subsequent Event [Member]
Debt Instrument, Covenant, Percentage of Projected Gross Revenue Achieved															80.00%
The 2017 Credit Agreement [Member] | East West Bank [Member] | Equipment Term Loan [Member]
Debt Instrument, Face Amount									$ 17,000,000.0
Repayments of Long-term Debt, Total				$ 272,000
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									16,000,000.0
Line of Credit Facility, Maximum Borrowing Capacity									$ 1,000,000.0
Debt Instrument, Term (Year)						10 years
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage									0.50%
The 2022 Refinancing Agreement [Member] | East West Bank [Member] | Revolving Credit Facility [Member]
Long-term Debt, Gross												14,100,000							14,100,000
Line of Credit Facility, Fair Value of Amount Outstanding																								$ 13,800,000
Repayments of Lines of Credit							$ 8,400,000
Lines of Credit, Percentage of Net Proceeds From Receivables Financing, Payments for Refinancing.							5.00%
Lines of Credit, Value of Net Proceeds From Receivables Financing, Payments for Refinancing.							$ 1,000,000.0
Long-Term Line of Credit, Noncurrent												5,400,000							5,400,000
The 2022 Refinancing Agreement [Member] | East West Bank [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member]
Line of Credit Facility, Fair Value of Amount Outstanding	$ 13,800,000
Repayments of Lines of Credit		$ 8,400,000
Lines of Credit, Percentage of Net Proceeds From Receivables Financing, Payments for Refinancing.		500.00%
Lines of Credit, Value of Net Proceeds From Receivables Financing, Payments for Refinancing.		$ 1,000,000.0
Cross River Working Capital Note [Member] | Subsequent Event [Member]
Debt Instrument, Face Amount			$ 1,200,000																		$ 1,200,000
Debt Instrument, Term (Year)			6 years
Debt Instrument, Interest Rate, Stated Percentage			7.00%
Interest Payable			$ 15,000
Subordinated Debt with Related Party [Member]
Debt Instrument, Face Amount																						$ 220,000
Long-term Debt, Total												220,000							220,000	0
Interest Payable																						10,000
Debt Instrument, Fee Amount												$ 10,000							10,000	$ 10,000
Deposit Assets, Total																						$ 210,000
Interest Expense, Total																			$ 1,000
Subordinated Debt with Related Party [Member] | Subsequent Event [Member]
Repayments of Subordinated Debt, Total																$ 162,000
Paycheck Protection Program CARES Act [Member]
Debt Instrument, Interest Rate, Stated Percentage												1.00%							1.00%	1.00%
Long-term Debt, Total												$ 0							$ 0	$ 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										$ 1,900,000
Debt Instrument, Decrease, Forgiveness					$ 1,900,000
Debt Instrument, Decrease, Forgiveness of Accrued Interest					$ 24,000
Paycheck Protection Program CARES Act [Member] | East West Bank [Member] | Other Income (Expense) [Member]
Gain (Loss) on Extinguishment of Debt, Total																	$ 2,000,000.0