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Note 8 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Effective Income Tax Rate Reconciliation, Percent (561.70%) 34.80% (486.20%) 35.20%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent     21.00% 21.00%
Effective Income Tax Reconciliation, Change In Uncertain Tax Positions, Percent (599.20%)   (553.80%)  
Unrecognized Tax Benefits $ 115   $ 115