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Loans Receivable And Allowance For Loan Losses - Loan Modifications (Details) - Commercial business $ in Thousands	9 Months Ended
	Jun. 30, 2025 USD ($)
Loan extended three months and secured a deed of trust on a land parcel
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 256
% of Total Loan Type	0.20%
Loan extension term	3 months
Loan extended seven months, monthly payment reduced with principal payments due at time of change in terms and 1.5 months after signing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 2
% of Total Loan Type	0.00%
Loan extension term	7 months
Period of payment reduction after signing	1 month 15 days

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