Loans Receivable and Allowance for Loan Losses: Summary of TDR Loans (Details) - USD ($)	Sep. 30, 2023	Sep. 30, 2022
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans included in impaired loans	$ 2,495,000	$ 2,615,000
TDR Loans, commitment to lend additional funds		0
Allowance for loan losses	$ 15,817,000	$ 13,703,000

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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