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Note 9 - Taxes (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Effective Income Tax Rate Reconciliation, Percent     22.20% 23.40%
Open Tax Year     2019 2020 2021 2022 2023  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense $ 0 $ 0 $ 0 $ 0