Note 7 - Commitments and Contingencies - Schedule of Fair Value, off-Balance-Sheet Risks (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability | $ 143,466 | $ 132,344 |
| Commitments to Extend Credit [Member] | ||
| Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability | 142,428 | 131,306 |
| Standby Letters of Credit [Member] | ||
| Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability | $ 1,038 | $ 1,038 |