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Note 4 - Credit Quality - Loans Modified as Troubled Debt Restructurings (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Financial Asset, Not Past Due [Member] |  |
Loans modified | $ 1,913 | $ 1,921
Financial Asset, 30 to 89 Days Past Due [Member] |  |
Loans modified | 213 | 204
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans modified | 165 | 135
Non-farm, Non-residential [Member] | Financial Asset, Not Past Due [Member] |  |
Loans modified | 589 | 625
Non-farm, Non-residential [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Loans modified | 0 | 0
Non-farm, Non-residential [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans modified | 0 | 0
Commercial and Industrial [Member] | Financial Asset, Not Past Due [Member] |  |
Loans modified | 48 | 144
Commercial and Industrial [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Loans modified | 0 | 0
Commercial and Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans modified | 0 | 135
Single Family Owner Occupied [Member] | Financial Asset, Not Past Due [Member] |  |
Loans modified | 1,248 | 1,140
Single Family Owner Occupied [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Loans modified | 213 | 174
Single Family Owner Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans modified | 165 | 0
Consumer Loans [Member] | Financial Asset, Not Past Due [Member] |  |
Loans modified | 6 | 10
Consumer Loans [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Loans modified | 0 | 0
Consumer Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans modified | 0 | 0
Single Family Non-owner Occupied [Member] | Financial Asset, Not Past Due [Member] |  |
Loans modified | 22 | 0
Single Family Non-owner Occupied [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Loans modified | 0 | 30
Single Family Non-owner Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans modified | 0 | 0
Home Equity Lines [Member] | Financial Asset, Not Past Due [Member] |  |
Loans modified | 0 | 2
Home Equity Lines [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Loans modified | 0 |
Home Equity Lines [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans modified | 0 |
Agricultural [Member] | Financial Asset, Not Past Due [Member] |  |
Loans modified | 0 |
Agricultural [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Loans modified | 0 |
Agricultural [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans modified | 0 |
Payment Deferral [Member] |  |
Amortized cost basis | 1,103 | 1,299
Payment Deferral [Member] | Non-farm, Non-residential [Member] |  |
Amortized cost basis | $ 589 | $ 625
Percentage of total financing receivable | 0.07% | 0.07%
Delayed period (Month) | 6 months | 6 months
Payment Deferral [Member] | Commercial and Industrial [Member] |  |
Amortized cost basis | $ 13 | $ 135
Percentage of total financing receivable | 0.10% | 0.06%
Delayed period (Month) | 6 years |
Deferred principal |  | $ 8
Payment Deferral [Member] | Single Family Owner Occupied [Member] |  |
Amortized cost basis | $ 479 | $ 509
Percentage of total financing receivable | 0.08% | 0.08%
Deferred principal | $ 66 | $ 66
Payment Deferral [Member] | Single Family Non-owner Occupied [Member] |  |
Amortized cost basis | $ 22 | $ 30
Percentage of total financing receivable | 0.01% | 0.02%
Delayed period (Month) | 6 months | 6 months
Extended Maturity [Member] |  |
Amortized cost basis | $ 105 | $ 148
Extended Maturity [Member] | Commercial and Industrial [Member] |  |
Amortized cost basis | $ 35 | $ 144
Percentage of total financing receivable | 0.01% | 0.06%
Delayed period (Month) |  | 2 years
Extended Maturity [Member] | Commercial and Industrial [Member] | Minimum [Member] |  |
Delayed period (Month) | 24 years |
Extended Maturity [Member] | Commercial and Industrial [Member] | Maximum [Member] |  |
Delayed period (Month) | 46 years |
Extended Maturity [Member] | Single Family Owner Occupied [Member] |  |
Amortized cost basis | $ 69 |
Percentage of total financing receivable | 0.01% |
Extended term (Year) | 10 years 6 months |
Extended Maturity [Member] | Consumer Loans [Member] |  |
Amortized cost basis | $ 1 | $ 2
Percentage of total financing receivable | 0.00% | 0.00%
Extended Maturity [Member] | Consumer Loans [Member] | Minimum [Member] |  |
Extended term (Year) | 60 months | 60 months
Extended Maturity [Member] | Consumer Loans [Member] | Maximum [Member] |  |
Extended term (Year) | 84 months | 84 months
Extended Maturity [Member] | Home Equity Lines [Member] |  |
Amortized cost basis |  | $ 2
Percentage of total financing receivable |  | 0.00%
Delayed period (Month) |  | 2 years
Term Extension and Rate Reduction [Member] |  |
Amortized cost basis | $ 993 | $ 813
Term Extension and Rate Reduction [Member] | Single Family Owner Occupied 1 [Member] |  |
Amortized cost basis | $ 988 | $ 806
Percentage of total financing receivable | 0.16% | 0.12%
Extended term (Year) | 10 months | 10 months
Term Extension and Rate Reduction [Member] | Consumer Loans [Member] |  |
Amortized cost basis | $ 5 | $ 7
Percentage of total financing receivable | 0.01% | 0.01%
Interest rate after modification | 10.50% | 10.50%
Contractual Interest Rate Reduction [Member] |  |
Amortized cost basis | $ 90 |
Contractual Interest Rate Reduction [Member] | Single Family Owner Occupied 1 [Member] |  |
Amortized cost basis | $ 90 |
Percentage of total financing receivable | 0.01% |
Extended term (Year) | 3 years 1 month 24 days |
Interest rate after modification | 1.95% |

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