Note 9 - Commitments and Contingencies (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	Dec. 31, 2022	Nov. 30, 2021
Performance and Payment Bonds Outstanding Amount	$ 16,400
Syndicated Term Note [Member]
Debt Instrument, Fair Value Disclosure, Total	$ 536
Stock in Connection With Syndicated Debt [Member]
Stock Issued, Reference Price Per Share (in dollars per share)	$ 0.15	$ 2.36
Orbital Solar Services [Member]
Performance and Payment Bonds, Remaining Cost to Complete Jobs	$ 16,000
Front Line Power Construction, LLC [Member]
Performance and Payment Bonds Outstanding Amount	$ 400

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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