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Note 3 - Loans - Analysis of Allowance for Loans Losses by Portfolio Segment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Balance, beginning of year | $ 153,317 | $ 146,297 | $ 116,660
Charge-offs | (13,684) |  |
Recoveries | 3,272 | 2,886 | 2,167
Provision | 21,553 | 18,715 | 37,607
Balance, end of year | 164,458 | 153,317 | 146,297
Charge-offs | (13,684) | (14,581) | (10,137)
Commercial Real Estate Portfolio Segment [Member] |  |  |
Charge-offs | (12,115) | (13,229) |
Commercial Real Estate Portfolio Segment [Member] | Commercial, Financial, and Agricultural Loans [Member] |  |  |
Balance, beginning of year | 52,121 | 42,830 | 41,869
Charge-offs | (12,115) |  |
Recoveries | 3,021 | 2,800 | 2,012
Provision | 12,303 | 19,720 | 8,205
Balance, end of year | 55,330 | 52,121 | 42,830
Charge-offs |  | (13,229) | (9,256)
Real Estate Portfolio Segment[Member] | Construction Loans [Member] |  |  |
Balance, beginning of year | 44,658 | 42,889 | 26,994
Charge-offs | 0 |  |
Recoveries | 8 | 3 | 0
Provision | (6,069) | 1,874 | 15,895
Balance, end of year | 38,597 | 44,658 | 42,889
Charge-offs | 0 | (108) | 0
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member] |  |  |
Balance, beginning of year | 17,702 | 16,843 | 16,204
Charge-offs | (237) |  |
Recoveries | 29 | 0 | 0
Provision | 4,808 | 976 | 809
Balance, end of year | 22,302 | 17,702 | 16,843
Charge-offs | (237) | (117) | (170)
Real Estate Portfolio Segment[Member] | One to Four Family [Member] |  |  |
Balance, beginning of year | 12,029 | 12,219 | 6,978
Charge-offs | (761) |  |
Recoveries | 2 | 0 | 0
Provision | 2,826 | (136) | 5,292
Balance, end of year | 14,096 | 12,029 | 12,219
Charge-offs | (761) | (54) | (51)
Real Estate Portfolio Segment[Member] | Non-owner Occupied Commercial [Member] |  |  |
Balance, beginning of year | 25,395 | 29,590 | 22,647
Charge-offs | 0 |  |
Recoveries | 0 | 0 | 0
Provision | 5,933 | (4,195) | 6,943
Balance, end of year | 31,328 | 25,395 | 29,590
Charge-offs | 0 | 0 | 0
Consumer Portfolio Segment [Member] |  |  |
Balance, beginning of year | 1,412 | 1,926 | 1,968
Charge-offs | (571) |  |
Recoveries | 212 | 83 | 155
Provision | 1,752 | 476 | 463
Balance, end of year | 2,805 | 1,412 | 1,926
Charge-offs | $ (571) | $ (1,073) | $ (660)

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