Note 9 - Fair Value Measurements - Schedule of Financial Assets on a Non-recurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Collateral Dependent Loans [Member] | ||
| Collateral dependent loans | $ 7,164 | $ 9,236 |
| Mortgage Servicing Rights [Member] | ||
| Collateral dependent loans | 23,202 | 21,800 |
| Fair Value, Inputs, Level 1 [Member] | Collateral Dependent Loans [Member] | ||
| Collateral dependent loans | 0 | 0 |
| Fair Value, Inputs, Level 1 [Member] | Mortgage Servicing Rights [Member] | ||
| Collateral dependent loans | 0 | 0 |
| Fair Value, Inputs, Level 2 [Member] | Collateral Dependent Loans [Member] | ||
| Collateral dependent loans | 0 | 0 |
| Fair Value, Inputs, Level 2 [Member] | Mortgage Servicing Rights [Member] | ||
| Collateral dependent loans | 0 | 0 |
| Fair Value, Inputs, Level 3 [Member] | Collateral Dependent Loans [Member] | ||
| Collateral dependent loans | 7,164 | 9,236 |
| Fair Value, Inputs, Level 3 [Member] | Mortgage Servicing Rights [Member] | ||
| Collateral dependent loans | $ 23,202 | $ 21,800 |