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Note 11 - Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Tax provision at Federal statutory rate, amount | $ 66,684 | $ 84,752 | $ 99,233
Tax provision at Federal statutory rate, percent | 21.00% | 21.00% | 21.00%
State income taxes, net of Federal income tax benefit, amount | $ 27,432 | $ 36,107 | $ 44,837
State income taxes, net of Federal income tax benefit, percent | 8.60% | 9.00% | 9.50%
Excess deduction for stock option and RSUs, amount | $ (517) | $ (586) | $ (140)
Excess deduction for stock option and RSUs, percent | (0.20%) | (0.10%) | 0.00%
Low income housing and other tax credits, amount | $ (63,965) | $ (73,715) | $ (34,231)
Low income housing and other tax credits, percent | (20.10%) | (18.30%) | (7.20%)
Other, net, amount | $ 1,929 | $ 2,900 | $ 2,195
Other, net, percent | 0.60% | 0.70% | 0.40%
Total income tax expense, amount | $ 31,563 | $ 49,458 | $ 111,894
Total income tax expense, percent | 9.90% | 12.30% | 23.70%

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