Note 6 - Fair Value Measurements (Details Textual) $ in Thousands	6 Months Ended
Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)	Nov. 14, 2024 USD ($)
Derivative Asset	$ 2,431	$ 2,730
Long-Term Debt, Fair Value	248,800	286,600
Long-Term Debt, Gross	250,000	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
Enercon Technologies, Ltd [Member] \| Earnout Payment [Member] \| Fair Value, Inputs, Level 3 [Member]
Business Combination, Contingent Consideration, Liability	4,575	$ 3,487
Business Combination, Contingent Consideration, Change in Contingent Consideration, Liability, Increase (Decrease)	$ 1,100
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	0.455	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	0.0617	0.0666
Foreign Exchange Forward [Member]
Derivative Assets (Liabilities), at Fair Value, Net	$ 700	$ (1,000)
Interest Rate Swap [Member]
Derivative Asset	1,700	2,700
Investments Held in Rabbi Trust [Member]
Debt Securities, Available-for-Sale	$ 100	$ 600

Fair value portion of asset recognized for present right to economic benefit.

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