Note 11 - Financial Instrument Commitments (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Commitments And Contingencies Disclosure [Line Items] | ||
| Total financial instrument commitments | $ 531,665 | $ 420,595 |
| Commitments to Extend Credit [Member] | ||
| Commitments And Contingencies Disclosure [Line Items] | ||
| Total financial instrument commitments | 510,477 | 401,073 |
| Standby Letters of Credit [Member] | ||
| Commitments And Contingencies Disclosure [Line Items] | ||
| Total financial instrument commitments | $ 21,188 | $ 19,522 |