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Note 12 - Commitments and Off-balance-sheet Risk (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes Tables |
Summary of Contractual Amounts of Financial Instruments With Off Balance Sheet Risk [Table Text Block] |
(Dollars in thousands) |  | 2024 |  |  | 2023 |
Commercial unused lines of credit |  | $ | 1,488,782 |  |  | $ | 1,557,429 |
Unused lines of credit secured by 1 – 4 family residential properties |  |  | 84,298 |  |  |  | 74,120 |
Credit card unused lines of credit |  |  | 172,273 |  |  |  | 142,096 |
Other consumer unused lines of credit |  |  | 33,892 |  |  |  | 50,063 |
Commitments to make loans |  |  | 295,566 |  |  |  | 270,403 |
Standby letters of credit |  |  | 26,491 |  |  |  | 19,393 |
Total commitments |  | $ | 2,101,302 |  |  | $ | 2,113,504 |
Schedule of Fair Value, off-Balance-Sheet Risks [Table Text Block] |
(Dollars in thousands) |  | December 31, 2024 |  |  | December 31, 2023 |
|  | Contract |  |  | Carrying |  |  | Contract |  |  | Carrying |
|  | Amount |  |  | Value |  |  | Amount |  |  | Value |
Standby letters of credit |  | $ | 26,491 |  |  | $ | 175 |  |  | $ | 19,393 |  |  | $ | 99 |

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