Note 4 - Loans and Allowance for Credit Losses - Components of Allowance for Credit Losses (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
Dec. 31, 2024 |
|
| Beginning balance | $ 4,594 | $ 4,554 | $ 4,560 | $ 4,549 | $ 4,549 |
| Provision for (recovery of) credit losses | 238 | 0 | 268 | 0 | |
| Charge-offs | (356) | (155) | (356) | (156) | (162) |
| Charge-offs | (356) | (155) | (356) | (156) | (162) |
| Recoveries | 11 | 6 | 15 | 12 | 24 |
| Ending balance | 4,487 | 4,405 | 4,487 | 4,405 | 4,560 |
| Held-to-Maturity Securities [Member] | |||||
| Beginning balance | 63 | 32 | 60 | 36 | 36 |
| Provision for (recovery of) credit losses | 18 | 95 | 21 | 91 | |
| Charge-offs | 0 | 0 | 0 | 0 | |
| Charge-offs | 0 | 0 | 0 | 0 | |
| Recoveries | 0 | 0 | 0 | 0 | |
| Ending balance | 81 | 127 | 81 | 127 | 60 |
| Loans [Member] | |||||
| Beginning balance | 4,304 | 4,318 | 4,260 | 4,284 | 4,284 |
| Provision for (recovery of) credit losses | 274 | (87) | 314 | (59) | |
| Charge-offs | (356) | (155) | (356) | (156) | |
| Charge-offs | (356) | (155) | (356) | (156) | |
| Recoveries | 11 | 5 | 15 | 12 | |
| Ending balance | 4,233 | 4,081 | 4,233 | 4,081 | 4,260 |
| Unfunded Loan Commitment [Member] | |||||
| Beginning balance | 204 | 228 | 228 | ||
| Provision for (recovery of) credit losses | (8) | (32) | |||
| Charge-offs | 0 | 0 | |||
| Charge-offs | 0 | 0 | |||
| Recoveries | 0 | 0 | |||
| Ending balance | $ 196 | $ 196 | |||
| Unfunded Loan Commitments [Member] | |||||
| Beginning balance | 227 | 240 | |||
| Provision for (recovery of) credit losses | (54) | (67) | |||
| Charge-offs | 0 | 0 | |||
| Charge-offs | 0 | 0 | |||
| Recoveries | 0 | 0 | |||
| Ending balance | $ 173 | $ 173 | $ 240 | ||