Commitments And Contingent Liabilities (Schedule of Off Balance Sheet Risks) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022
Commitments And Contingencies Off-balance Sheet Risks, Disclosure Information [Line Items]
Mortgage loans held for sale	$ 12,549	$ 9,661
Commitments To Originate
Commitments And Contingencies Off-balance Sheet Risks, Disclosure Information [Line Items]
Total Commitments	330,943
Total Allowance	2,478
Commitments To Originate Fixed-Rate Mortgage Loans
Commitments And Contingencies Off-balance Sheet Risks, Disclosure Information [Line Items]
Total Commitments	107,867
Total Allowance	436
Commitments To Originate Adjustable-Rate Mortgage Loans
Commitments And Contingencies Off-balance Sheet Risks, Disclosure Information [Line Items]
Total Commitments	100,271
Total Allowance	416
Commitments To Originate Equity Loans and Lines of Credit Including Bridge Loans
Commitments And Contingencies Off-balance Sheet Risks, Disclosure Information [Line Items]
Total Commitments	122,805
Total Allowance	1,626
Unfunded Commitments
Commitments And Contingencies Off-balance Sheet Risks, Disclosure Information [Line Items]
Total Commitments	4,288,014
Total Allowance	23,632
Unfunded Commitments Equity Lines of Credit
Commitments And Contingencies Off-balance Sheet Risks, Disclosure Information [Line Items]
Total Commitments	4,228,265
Total Allowance	23,147
Unfunded Commitments Construction Loans
Commitments And Contingencies Off-balance Sheet Risks, Disclosure Information [Line Items]
Total Commitments	59,749
Total Allowance	$ 485