Note 12 - Commitments and Contingent Liabilities - Off Balance Sheet Commitments to Extend Credit (Details) - USD ($) $ in Thousands |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Off balance sheet commitments to extend credit | $ 2,530,278 | $ 2,438,242 |
| Commercial and Industrial Loans [Member] | ||
| Off balance sheet commitments to extend credit | 851,192 | 876,503 |
| Construction and Development [Member] | ||
| Off balance sheet commitments to extend credit | 587,692 | 566,045 |
| Home Equity Loans [Member] | ||
| Off balance sheet commitments to extend credit | 429,714 | 403,461 |
| Credit Cards [Member] | ||
| Off balance sheet commitments to extend credit | 93,788 | 92,060 |
| Overdrafts [Member] | ||
| Off balance sheet commitments to extend credit | 55,979 | 58,078 |
| Letters of Credit [Member] | ||
| Off balance sheet commitments to extend credit | 28,109 | 30,472 |
| Other Off Balance Sheet Commitments [Member] | ||
| Off balance sheet commitments to extend credit | 82,402 | 86,010 |
| Future Loan Commitments [Member] | ||
| Off balance sheet commitments to extend credit | $ 401,402 | $ 325,613 |