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Note 3 - Loans and Allowance for Credit Losses - Amortized Cost of Modified Loans (Details) - USD ($) | Sep. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Modified | $ 8,184,000 |  |  |
Financial Asset, Not Past Due [Member] |  |  |  |
Modified | 8,184,000 |  |  |
Financial Asset, 30 to 89 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] |  |  |  |
Modified | 8,184,000 |  |  |
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |  |  |
Modified | 8,184,000 |  |  |
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |  |
Modified | 8,184,000 | $ 9,066,000 | $ 9,938,000 | $ 4,973,000
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Financial Asset, Not Past Due [Member] |  |  |  |
Modified | 8,184,000 |  |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |  |
Modified | 0 | 0 | 0 | 0
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Financial Asset, Not Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |  |  |
Modified | 0 | 84,000 | 87,000 | 10,435,000
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Financial Asset, Not Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |  |
Modified | 0 | 135,000 | 139,000 | 146,000
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Financial Asset, Not Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |  |
Modified | 0 | 0 | 88,000 | 91,000
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Financial Asset, Not Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Retail Portfolio Segment [Member] |  |  |  |
Modified | 0 |  |  |
Retail Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Retail Portfolio Segment [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Retail Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] |  |  |  |
Modified | 0 | 2,544,000 | 2,339,000 | 627,000
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] | Financial Asset, Not Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Retail Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |  |
Modified | 0 | $ 2,000 | $ 3,000 | $ 1,202,000
Retail Portfolio Segment [Member] | Other Consumer Loans [Member] | Financial Asset, Not Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Retail Portfolio Segment [Member] | Other Consumer Loans [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |  |
Modified | 0 |  |  |
Retail Portfolio Segment [Member] | Other Consumer Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Modified | $ 0 |  |  |

X
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