Loans Receivable and Allowance for Loan Losses: Summary of TDR Loans (Details) - USD ($)	Sep. 30, 2024	Sep. 30, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	$ 17,478,000	$ 15,817,000

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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