Annual report [Section 13 and 15(d), not S-K Item 405]

Note 15 - Income Taxes - Reconciliation From Federal Income Tax Statutory Rates to Income Before Income Taxes (Details)

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Note 15 - Income Taxes - Reconciliation From Federal Income Tax Statutory Rates to Income Before Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income tax at statutory federal rate, amount $ 71,848 $ 58,585 $ 51,363
Income tax at statutory federal rate, percentage 21.00% 21.00% 21.00%
State income tax, net of federal tax effect, amount $ 5,023 [1] $ 1,787 $ 3,339
State income tax, net of federal tax effect, percentage 1.47% [1] 0.64% 1.37%
Energy tax credits, amount $ (4,500)    
Tax-exempt income, net of expenses, amount   $ (14) $ (92)
Energy tax credits, percentage (1.32%)    
Tax-exempt income, net of expenses, pre-tax earnings   (0.01%) (0.04%)
Other credits, amount $ (4,592)    
Bank owned life insurance contracts, amount   $ (2,002) $ (1,591)
Other credits, percentage (1.34%)    
Bank owned life insurance contracts, pre-tax earnings   (0.72%) (0.65%)
Nontaxable or nondeductible items, amount $ (2,863)    
Excess tax benefit from stock compensation, amount   $ (1,117) $ (1,242)
Nontaxable or nondeductible items, percentage (0.84%)    
Excess tax benefit from stock compensation, pre-tax earnings   (0.40%) (0.51%)
Change in unrecognized tax positions, amount $ 176    
Federal tax credits, net of related amortization, amount   $ (6,297) $ (16,002)
Change in unrecognized tax positions, percentage 0.05%    
Federal tax credits, net of related amortization, pre-tax earnings   (2.26%) (6.54%)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount $ 435    
Other, amount   $ 798 $ 1,960
Other, percentage 0.13% 0.36% 0.80%
Total income tax expense $ 65,527 [2] $ 51,740 [3] $ 37,735 [4]
Effective income tax and rate, percentage 19.15% [2] 18.61% [3] 15.43% [4]
[1] (2) State taxes in Alabama, Florida, and South Carolina make up the majority (greater than 50%) of the tax effect in this category
[2] (1) Post-adoption of ASU 2023-09
[3] (3) 2024 and 2023 are pre-adoption of ASU 2023-09
[4] (3) 2024 and 2023 are pre-adoption of ASU 2023-09