Note 12 - Commitments and Contingencies (Details Textual) - Aquana, LLC [Member] - USD ($) $ in Thousands	1 Months Ended
Jul. 31, 2021	Jun. 30, 2025
Business Combination, Contingent Consideration, Earn Out Period (Year)	7 years
Business Combination, Required Continued Employment of Key Employees, Period (Year)	5 years
Business Combination, Contingent Consideration, Liability		$ 0

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

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