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Modifications BFD - Payment Status (Details) - Aging Loan Modification Member - USD ($) $ in Thousands | Sep. 30, 2024 | Sep. 30, 2023
--- | --- | ---
Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | $ 58,262 | $ 23,801
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 0 | 0
Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 34 | 1,164
Commercial And Industrial [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 10,467 | 7,409
Commercial And Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 0 | 0
Commercial And Industrial [Member] | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 0 | 504
Commercial Real Estate [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 43,731 | 16,252
Commercial Real Estate [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 0 | 0
Commercial Real Estate [Member] | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 0 | 660
Construction [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 3,488 |
Construction [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 0 |
Construction [Member] | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 0 |
Small Business [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 146 | 140
Small Business [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 0 | 0
Small Business [Member] | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 34 | $ 0
Residential Real Estate [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 297 |
Residential Real Estate [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 0 |
Residential Real Estate [Member] | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 0 |
Home Equity Loan [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 133 |
Home Equity Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | 0 |
Home Equity Loan [Member] | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | $ 0 |

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