Note 3 - Loans Receivable - Summary of Activity in Allowance for Loan Losses (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Beginning Balance | $ 19,049 | $ 19,460 | $ 19,308 | $ 19,450 | $ 19,450 |
| Charge-offs | 0 | (622) | (282) | (622) | (858) |
| Recoveries | 14 | 747 | 37 | 757 | |
| Provision For Credit Losses - Loans | 243 | (528) | 243 | (528) | |
| Ending Balance | 19,306 | 19,057 | 19,306 | 19,057 | 19,308 |
| Residential Portfolio Segment [Member] | |||||
| Beginning Balance | 2,440 | 2,492 | 2,436 | 2,478 | 2,478 |
| Charge-offs | 0 | 0 | (282) | 0 | |
| Recoveries | 12 | 3 | 32 | 5 | |
| Provision For Credit Losses - Loans | 105 | 21 | 371 | 33 | |
| Ending Balance | 2,557 | 2,516 | 2,557 | 2,516 | 2,436 |
| Commercial Real Estate Portfolio Segment [Member] | |||||
| Beginning Balance | 11,752 | 11,395 | 11,883 | 11,321 | 11,321 |
| Charge-offs | 0 | 0 | 0 | 0 | |
| Recoveries | 0 | 740 | 0 | 740 | |
| Provision For Credit Losses - Loans | 261 | (1,130) | 130 | (1,056) | |
| Ending Balance | 12,013 | 11,005 | 12,013 | 11,005 | 11,883 |
| Construction and Land Development [Member] | |||||
| Beginning Balance | 3,476 | 4,102 | 3,527 | 4,648 | 4,648 |
| Charge-offs | 0 | 0 | 0 | 0 | |
| Recoveries | 0 | 0 | 0 | 0 | |
| Provision For Credit Losses - Loans | (103) | (44) | (154) | (590) | |
| Ending Balance | 3,373 | 4,058 | 3,373 | 4,058 | 3,527 |
| Commercial Portfolio Segment [Member] | |||||
| Beginning Balance | 1,376 | 1,463 | 1,456 | 993 | 993 |
| Charge-offs | 0 | (622) | 0 | (622) | |
| Recoveries | 2 | 4 | 5 | 11 | |
| Provision For Credit Losses - Loans | (23) | 626 | (106) | 1,089 | |
| Ending Balance | 1,355 | 1,471 | 1,355 | 1,471 | 1,456 |
| Consumer Portfolio Segment [Member] | |||||
| Beginning Balance | 5 | 8 | 6 | 10 | 10 |
| Charge-offs | 0 | 0 | 0 | 0 | |
| Recoveries | 0 | 0 | 0 | 1 | |
| Provision For Credit Losses - Loans | 3 | (1) | 2 | (4) | |
| Ending Balance | $ 8 | $ 7 | $ 8 | $ 7 | $ 6 |