Note 8 - Fair Value Measures - Assets Measured on a Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - Individually Evaluated Loans [Member] - USD ($) $ in Thousands |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Fair Value, Inputs, Level 1 [Member] | ||
| Loans individually evaluated, net of reserve | $ 0 | $ 0 |
| Fair Value, Inputs, Level 2 [Member] | ||
| Loans individually evaluated, net of reserve | 73 | 0 |
| Fair Value, Inputs, Level 3 [Member] | ||
| Loans individually evaluated, net of reserve | $ 0 | $ 0 |