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Loans, Modifications in Last 12 Months, Performance - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2025 | Sep. 30, 2024
Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | $ 7,324 | $ 3,783
Financial Asset, 30-89 Days Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | 880 | 622
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | 433 |
Commercial and Industrial Sector | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | 458 | 424
Commercial and Industrial Sector | Financial Asset, 30-89 Days Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | 0 | 0
Commercial and Industrial Sector | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | 0 |
Residential Mortgage [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | 4,424 | 1,462
Residential Mortgage [Member] | Financial Asset, 30-89 Days Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | 880 | 568
Residential Mortgage [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | 433 |
Automobile Loan [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount |  | 22
Automobile Loan [Member] | Financial Asset, 30-89 Days Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount |  | 21
Home Equity Line of Credit [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | 221 | 235
Home Equity Line of Credit [Member] | Financial Asset, 30-89 Days Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | 0 | 33
Home Equity Line of Credit [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | 0 |
Other Consumer [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | 2,220 | 1,642
Other Consumer [Member] | Financial Asset, 30-89 Days Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | 0 | $ 0
Other Consumer [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items] |  |
Financing Receivable, Modified in Period, Amount | $ 0 |

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