Loans And Allowance For Credit Losses (Schedule Of Loans Modified During The Period) (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]
Modified Loans	$ 1,880	$ 1,519	$ 5,059	$ 6,345
Modified Loans, to Total Financing Receivables, Percentage	0.01%	0.01%	0.03%	0.04%
Construction/Permanent Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	$ 0	$ 0	$ 0	$ 0
Residential Non Home Today
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	$ 1,163	$ 788	$ 3,642	$ 4,551
Modified Loans, to Total Financing Receivables, Percentage	0.01%	0.01%	0.03%	0.04%
Residential Home Today
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	$ 246	$ 162	$ 537	$ 550
Modified Loans, to Total Financing Receivables, Percentage	0.66%	0.39%	1.45%	1.31%
Home Equity Line of Credit
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	$ 401	$ 569	$ 810	$ 1,199
Modified Loans, to Total Financing Receivables, Percentage	0.01%	0.02%	0.02%	0.04%
Home Equity Loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	$ 70	$ 0	$ 70	$ 45
Modified Loans, to Total Financing Receivables, Percentage	0.01%	0.00%	0.01%	0.01%
Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	$ 0	$ 0	$ 0	$ 0
Interest Rate Reduction \| Residential Non Home Today
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	0	0	0	0
Interest Rate Reduction \| Residential Home Today
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	0	0	0	0
Interest Rate Reduction \| Home Equity Line of Credit
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	0	0	0	0
Interest Rate Reduction \| Home Equity Loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	0	0	0	0
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	427	238	1,068	633
Term Extension \| Residential Non Home Today
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	427	182	997	529
Term Extension \| Residential Home Today
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	0	56	25	104
Term Extension \| Home Equity Line of Credit
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	0	0	46	0
Term Extension \| Home Equity Loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	0	0	0	0
Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	924	1,130	2,381	3,910
Significant Payment Delay \| Residential Non Home Today
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	658	590	1,662	2,704
Significant Payment Delay \| Residential Home Today
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	90	69	352	221
Significant Payment Delay \| Home Equity Line of Credit
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	106	471	297	940
Significant Payment Delay \| Home Equity Loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	70	0	70	45
Rate Reduction & Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	529	151	1,274	1,302
Rate Reduction & Term Extension \| Residential Non Home Today
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	78	16	650	843
Rate Reduction & Term Extension \| Residential Home Today
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	156	37	157	225
Rate Reduction & Term Extension \| Home Equity Line of Credit
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	295	98	467	234
Rate Reduction & Term Extension \| Home Equity Loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	0	0	0	0
Other Loan Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	0	0	336	500
Other Loan Modification \| Residential Non Home Today
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	0	0	333	475
Other Loan Modification \| Residential Home Today
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	0	0	3	0
Other Loan Modification \| Home Equity Line of Credit
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	0	0	0	25
Other Loan Modification \| Home Equity Loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modified Loans	$ 0	$ 0	$ 0	$ 0

Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

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