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Note 5 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Income Tax Expense (Benefit) $ 275 $ 220 $ 945 $ 241
Effective Income Tax Rate Reconciliation, Percent     13.86% 9.32%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate and State and Local Income Taxes, Percent     26.72%  
Deferred Tax Assets, Capital Loss Carryforwards $ 800   $ 800  
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount     $ 1,400