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Note 2 - Acquisitions (Details Textual) - USD ($) $ in Thousands			12 Months Ended
	Mar. 31, 2021	Jan. 08, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Jan. 01, 2022
Payments to Acquire Businesses, Net of Cash Acquired, Total			$ (0)		$ 16,811
Goodwill, Ending Balance			25,099	$ 26,651	26,651		$ 26,651
EOS Power Panama Inc. [Member]
Revenues, Total						$ 12,000
rms Connectors, Inc. [Member]
Payments to Acquire Businesses, Net of Cash Acquired, Total		$ 9,000
Goodwill, Ending Balance		$ 0
EOS Power Panama Inc. [Member]
Payments to Acquire Businesses, Net of Cash Acquired, Total	$ 7,800
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	2,160			2,200	2,200
Goodwill, Ending Balance	$ 2,499
EOS Power Panama Inc. [Member] | Customer Relationships [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				1,900	$ 1,900
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)					16 years
EOS Power Panama Inc. [Member] | Trade Names [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				300	$ 300
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)					2 years
The 2021 Acquisitions [Member]
Business Combination, Acquisition Related Costs			0		$ 500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			2,160
Goodwill, Ending Balance			$ 2,499
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual				17,100
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual				$ 1,900

X

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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