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Loans and Allowance for Credit Losses - PCD Loans Acquired (Details) - USD ($) |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 20, 2023 | Feb. 25, 2022 | Sep. 30, 2024 | Jun. 30, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Fair value of PCD loans at acquisition |  |  | $ 558,000 | $ 560,000
Citizens Bancshares Company |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Purchase price of PCD loans at acquisition | $ 27,481,000 |  |  |
Allowance for credit losses at acquisition | (1,121,000) |  |  |
Fair value of PCD loans at acquisition | $ 26,360,000 |  |  |
Fortune |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Purchase price of PCD loans at acquisition |  | $ 15,055,000 |  |
Allowance for credit losses at acquisition |  | (120,000) |  |
Fair value of PCD loans at acquisition |  | $ 14,935,000 |  |

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