Note 6 - Fair Value Measurements - Fair Value of Earnout Liabilities (Details) - Earnout Payment [Member] - Enercon Technologies, Ltd [Member] - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024	Nov. 14, 2024
Business Combination, Contingent Consideration, Liability			$ 3,300
Fair Value, Inputs, Level 3 [Member]
Earnout payment liability - 2025	$ 2,862	$ 2,041
Earnout payment liability - 2026	1,713	1,446
Business Combination, Contingent Consideration, Liability	$ 4,575	$ 3,487

Amount of liability recognized arising from contingent consideration in a business combination.

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