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Note 3 - Equity Method Investment (Details Textual) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Aug. 23, 2024
Equity Method Investments $ 6,906 $ 6,808  
AQF Asia [Member]      
Equity Method Investment, Ownership Percentage     50.00%
Equity Method Investments $ 6,906 $ 6,808 $ 7,000