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Note 11 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Income Tax Expense (Benefit), Total | $ 2,228 | $ 3,700 | $ 5,790 | $ 10,106 |
Effective Income Tax Rate Reconciliation, Percent, Total | 31.50% | 20.10% | 21.20% | 19.70% |
Effective Income Tax Rate Continuing Operations Increase (Decrease) During the Period | 11.40% |  | 1.50% |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  |  | 21.00% |  |
Unrecognized Tax Benefits, Ending Balance | $ 5,000 |  | $ 5,000 |  | $ 4,800

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