The amount of benefit earned during the period from the employee retention credit.

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Amount of employee retention credit receivable, classified as current.

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The amount of stock issuance expenses not specifically disclosed.

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The cash inflow from the additional capital contribution to the entity, net of issuance cost.

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Represents the revenue as a percentage of sales associated with new wind turbine installations.

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Represents the percentage of sales agent commission.

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The maximum value of shares issuable with respect to the agreement.

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Face amount or stated value per share of common stock.

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Amount of short-term and long-term debt and lease obligation.

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Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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Number of new stock issued during the period.

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Note 1 - Basis of Presentation (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Mar. 09, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Revenue as Percentage of Sales Associated with New Wind Turbine Installations		63.00%	74.00%
Debt and Lease Obligation, Total		$ 17,803
Debt, Current, Total		6,532
Line of Credit, Current		4,468
Long-term Debt, Excluding Current Maturities, Total		$ 9,380		$ 9,381
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.001	$ 0.001		$ 0.001
Proceeds from Issuance of Common Stock, Net		$ 6,101
Employee Retention Credit Receivable, Current		3,372
Nonoperating Income (Expense) [Member]
Employee Retention Credit Benefit		3,372
The ATM Agreement [Member]
Value of Shares Issuable, Maximum	$ 10,000
Sales Agent Commission Percentage	2.75%
Stock Issued During Period, Shares, New Issues (in shares)	1,100,000
Proceeds from Issuance of Common Stock, Net	$ 6,436
Payments of Stock Issuance Costs	$ 182
Other Stock Issuance Expenses		335
Paycheck Protection Program CARES Act [Member]
Long-term Debt, Excluding Current Maturities, Total		$ 9,151