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Note 6 - Fair Value Measurements (Details Textual) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2025 USD ($) | Dec. 31, 2024 USD ($) | Nov. 14, 2024 USD ($)
Derivative Asset | $ 2,141 | $ 2,730 |
Long-Term Debt, Fair Value | 279,600 | 286,600 |
Long-Term Debt, Gross | 280,000 | 287,500 |
Fair Value, Nonrecurring [Member] |  |  |
Assets, Fair Value Disclosure, Total | 0 | 0 |
Enercon Technologies, Ltd [Member] | Earnout Payment [Member] |  |  |
Business Combination, Contingent Consideration, Liability |  |  | $ 3,300
Business Combination, Contingent Consideration, Change in Contingent Consideration, Liability, Increase (Decrease) | 600 |  |
Enercon Technologies, Ltd [Member] | Earnout Payment [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Business Combination, Contingent Consideration, Liability | $ 4,063 | $ 3,487 |
Enercon Technologies, Ltd [Member] | Earnout Payment [Member] | Fair Value, Inputs, Level 3 [Member] | Measurement Input, Price Volatility [Member] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | 0.426 | 0.521 |
Enercon Technologies, Ltd [Member] | Earnout Payment [Member] | Fair Value, Inputs, Level 3 [Member] | Measurement Input, Expected Term [Member] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | 2 |  |
Enercon Technologies, Ltd [Member] | Earnout Payment [Member] | Fair Value, Inputs, Level 3 [Member] | Measurement Input, Discount Rate [Member] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | 0.0626 | 0.0666 |
Foreign Exchange Forward [Member] |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | $ (500) | $ (1,000) |
Interest Rate Swap [Member] |  |  |
Derivative Asset | 2,100 | 2,700 |
Investments Held in Rabbi Trust [Member] |  |  |
Debt Securities, Available-for-Sale | $ 400 | $ 600 |

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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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