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Note 12 - Commitments and Off-balance-sheet Risk (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Summary of Contractual Amounts of Financial Instruments With Off Balance Sheet Risk [Table Text Block] |
(Dollars in thousands) |  | 2023 |  |  | 2022 |
Commercial unused lines of credit |  | $ | 1,557,429 |  |  | $ | 1,283,703 |
Unused lines of credit secured by 1 – 4 family residential properties |  |  | 74,120 |  |  |  | 71,972 |
Credit card unused lines of credit |  |  | 142,096 |  |  |  | 123,687 |
Other consumer unused lines of credit |  |  | 50,063 |  |  |  | 75,747 |
Commitments to make loans |  |  | 270,403 |  |  |  | 329,646 |
Standby letters of credit |  |  | 19,393 |  |  |  | 23,539 |
Total commitments |  | $ | 2,113,504 |  |  | $ | 1,908,294 |
Schedule of Fair Value, off-Balance-Sheet Risks [Table Text Block] |
(Dollars in thousands) |  | December 31, 2023 |  |  | December 31, 2022 |
|  | Contract |  |  | Carrying |  |  | Contract |  |  | Carrying |
|  | Amount |  |  | Value |  |  | Amount |  |  | Value |
Standby letters of credit |  | $ | 19,393 |  |  | $ | 99 |  |  | $ | 23,539 |  |  | $ | 108 |

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