Note 6 - Fair Value - Schedule of Fair Value, Assets and Liabilities Measured on Nonrecurring Basis (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Other real estate owned (OREO) | $ 2,862 | $ 2,862 |
| Fair Value, Nonrecurring [Member] | ||
| Collateral-dependent loans | 3,087 | 2,672 |
| Other real estate owned (OREO) | 2,862 | 2,862 |
| Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | ||
| Collateral-dependent loans | 0 | 0 |
| Other real estate owned (OREO) | 0 | 0 |
| Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | ||
| Collateral-dependent loans | 0 | 0 |
| Other real estate owned (OREO) | 0 | 0 |
| Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | ||
| Collateral-dependent loans | 3,087 | 2,672 |
| Other real estate owned (OREO) | $ 2,862 | $ 2,862 |