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v3.21.2

Note 2 - Acquisitions (Details Textual) - USD ($) $ in Thousands |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Mar. 31, 2021 | Jan. 08, 2021 | Sep. 30, 2021 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Payments to Acquire Businesses, Net of Cash Acquired, Total |  |  |  | $ 16,811 | $ (0) |
Goodwill, Ending Balance |  |  | $ 25,846 | 25,846 |  | $ 23,966
EOS Power Panama Inc. [Member] |  |  |  |  |  |
Revenues, Total |  |  |  |  |  | $ 12,000
Business Combination, Acquisition Related Costs |  |  | 0 | 500 |  |
rms Connectors, Inc. [Member] |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired, Total |  | $ 9,000 |  |  |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred | $ (7,800) |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  | 0 |  |  |  |
Goodwill, Ending Balance |  | $ 0 |  |  |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual |  |  | 4,300 | 12,400 |  |
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual |  |  | 200 | 1,600 |  |
EOS Power Panama Inc. [Member] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | 2,000 |  | 2,000 | 2,000 |  |
Goodwill, Ending Balance | $ 2,659 |  |  |  |  |
EOS Power Panama Inc. [Member] | Customer Relationships [Member] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  | $ 1,800 | 1,800 |  |
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 |  |  | $ 200 | $ 200 |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year) |  |  | 2 years |  |  |

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