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Note 9 - Income Taxes (Details Textual)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Effective Income Tax Rate Reconciliation, Percent, Total (5.20%) 36.30% (0.40%) 20.50%