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Note 5 - Fair Value Measurements - Schedule of Fair Value Measurements (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Equity Investments $ 4,084 $ 1,323
Total Assets 4,084 1,323
Forward Contract Liabilities 0 1,412
Convertible notes 1,301 689
Total Liabilities 1,301 2,101
Fair Value, Inputs, Level 1 [Member]    
Equity Investments 4,084 1,323
Total Assets 4,084 1,323
Forward Contract Liabilities 0 0
Convertible notes 0 0
Total Liabilities 0 0
Fair Value, Inputs, Level 2 [Member]    
Equity Investments 0 0
Total Assets 0 0
Forward Contract Liabilities 0 1,412
Convertible notes 0 0
Total Liabilities 0 1,412
Fair Value, Inputs, Level 3 [Member]    
Equity Investments 0 0
Total Assets 0 0
Forward Contract Liabilities 0 0
Convertible notes 1,301 689
Total Liabilities $ 1,301 $ 689