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Note 5 - Loans - Analysis of Allowance for Loans Losses by Portfolio Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Balance | $ 158,092 | $ 152,272 | $ 153,317 | [1] | $ 146,297
Charge-offs | (3,427) | (5,143) | (9,016) |  | (11,416)
Recoveries | 655 | 836 | 1,298 |  | 2,233
Provision for credit losses on loans | 5,435 | 4,282 | 15,156 |  | 15,133
Balance | 160,755 | 152,247 | 160,755 |  | 152,247
Commercial Real Estate Portfolio Segment [Member] | Commercial, Financial, and Agricultural Loans [Member] |  |  |  |  |
Balance | 56,216 | 43,465 | 52,121 |  | 42,830
Charge-offs | (3,020) | (4,783) | (8,217) |  | (10,398)
Recoveries | 616 | 825 | 1,220 |  | 2,187
Provision for credit losses on loans | 3,226 | 6,454 | 11,914 |  | 11,342
Balance | 57,038 | 45,961 | 57,038 |  | 45,961
Real Estate Portfolio Segment[Member] | Construction Loans [Member] |  |  |  |  |
Balance | 40,450 | 40,443 | 44,658 |  | 42,889
Charge-offs | 0 | (19) | 0 |  | (19)
Recoveries | 0 | 0 | 8 |  | 3
Provision for credit losses on loans | (3,092) | (2,401) | (7,308) |  | (4,850)
Balance | 37,358 | 38,023 | 37,358 |  | 38,023
Real Estate Portfolio Segment[Member] | Real Estate Loan [Member] |  |  |  |  |
Balance | 59,684 | 66,237 | 55,126 |  | 58,652
Charge-offs | (252) | 0 | (438) |  | (157)
Recoveries | 2 | 0 | 8 |  | 0
Provision for credit losses on loans | 5,322 | 37 | 10,060 |  | 7,779
Balance | 64,756 | 66,274 | 64,756 |  | 66,274
Consumer Portfolio Segment [Member] |  |  |  |  |
Balance | 1,742 | 2,127 | 1,412 |  | 1,926
Charge-offs | (155) | (341) | (361) |  | (842)
Recoveries | 37 | 11 | 62 |  | 43
Provision for credit losses on loans | (21) | 192 | 490 |  | 862
Balance | $ 1,603 | $ 1,989 | $ 1,603 |  | $ 1,989
[1] | Derived from audited financial statements.

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