Loans And Allowance For Credit Losses (Schedule of Modifications Restructured Within The Last 12 Months Which Defaulted) (Details) - Real Estate Loans - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 707	$ 153	$ 707	$ 247
Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0	0	0
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0	0	0
Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	371	139	371	233
Rate Reduction & Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	14	0	14
Other Loan Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	336	0	336	0
Home Equity Loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0	0	0
Residential Non Home Today
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	630	36	630	36
Residential Non Home Today \| Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0	0	0
Residential Non Home Today \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0	0	0
Residential Non Home Today \| Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	297	22	297	22
Residential Non Home Today \| Rate Reduction & Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	14	0	14
Residential Non Home Today \| Other Loan Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	333	0	333	0
Residential Home Today
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	46	16	46	16
Residential Home Today \| Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0	0	0
Residential Home Today \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0	0	0
Residential Home Today \| Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	43	16	43	16
Residential Home Today \| Rate Reduction & Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0	0	0
Residential Home Today \| Other Loan Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	3	0	3	0
Home Equity Line of Credit
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	31	101	31	195
Home Equity Line of Credit \| Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0	0	0
Home Equity Line of Credit \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0	0	0
Home Equity Line of Credit \| Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	31	101	31	195
Home Equity Line of Credit \| Rate Reduction & Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0	0	0
Home Equity Line of Credit \| Other Loan Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 0	$ 0	$ 0	$ 0