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Note 5 - Loan Restructurings - Schedule of Modified Loans With Subsequent Default (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Payment Deferral [Member] |  |  |  |
Loans, modified, subsequent default | $ 0 | $ 0 | $ 124 | $ 0
Payment Deferral [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |  |
Loans, modified, subsequent default | 0 |  | 124 |
Payment Deferral [Member] | Residential Portfolio Segment [Member] | 1-4 Family Residential [Member] |  |  |  |
Loans, modified, subsequent default |  | 0 |  | 0
Payment Deferral [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] |  |  |  |
Loans, modified, subsequent default | 0 | 0 | 0 | 0
Extended Maturity [Member] |  |  |  |
Loans, modified, subsequent default | 0 | 37 | 0 | 37
Extended Maturity [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |  |
Loans, modified, subsequent default | 0 |  | 0 |
Extended Maturity [Member] | Residential Portfolio Segment [Member] | 1-4 Family Residential [Member] |  |  |  |
Loans, modified, subsequent default |  | 37 |  | 37
Extended Maturity [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] |  |  |  |
Loans, modified, subsequent default | 0 | 0 | 0 | 0
Contractual Interest Rate Reduction [Member] |  |  |  |
Loans, modified, subsequent default | 0 | 29 | 0 | 29
Contractual Interest Rate Reduction [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |  |
Loans, modified, subsequent default | 0 |  | 0 |
Contractual Interest Rate Reduction [Member] | Residential Portfolio Segment [Member] | 1-4 Family Residential [Member] |  |  |  |
Loans, modified, subsequent default |  | 0 |  | 0
Contractual Interest Rate Reduction [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] |  |  |  |
Loans, modified, subsequent default | 0 | 29 | 0 | 29
Extended Maturity and Interest Rate Reduction [Member] |  |  |  |
Loans, modified, subsequent default | 0 | 20 | 19 | 20
Extended Maturity and Interest Rate Reduction [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |  |
Loans, modified, subsequent default | 0 |  | 0 |
Extended Maturity and Interest Rate Reduction [Member] | Residential Portfolio Segment [Member] | 1-4 Family Residential [Member] |  |  |  |
Loans, modified, subsequent default |  | 0 |  | 0
Extended Maturity and Interest Rate Reduction [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] |  |  |  |
Loans, modified, subsequent default | $ 0 | $ 20 | $ 19 | $ 20

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