v3.25.2
Loans And Allowance For Credit Losses (Schedule of Gross Charge-Offs) (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, Credit Quality Indicator [Line Items]        
Year One, Originated, Current Fiscal Year, Writeoff     $ 0 $ 11
Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff     0 0
Year Three, Originated, Two Years before Current Fiscal Year, Writeoff     0 26
Year Four, Originated, Three Years before Current Fiscal Year, Writeoff     0 18
Year Five, Originated, Four Years before Current Fiscal Year, Writeoff     17 0
Originated, More than Five Years before Current Fiscal Year, Writeoff     33 298
Revolving Loans Amortized Cost Basis     393 369
Revolving Loans Converted to Term     374 292
Charge-offs $ 220 $ 263 817 1,014
Construction/Permanent Loans        
Financing Receivable, Credit Quality Indicator [Line Items]        
Charge-offs     0 0
Residential Non Home Today        
Financing Receivable, Credit Quality Indicator [Line Items]        
Year One, Originated, Current Fiscal Year, Writeoff     0 11
Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff     0 0
Year Three, Originated, Two Years before Current Fiscal Year, Writeoff     0 10
Year Four, Originated, Three Years before Current Fiscal Year, Writeoff     0 0
Year Five, Originated, Four Years before Current Fiscal Year, Writeoff     0 0
Originated, More than Five Years before Current Fiscal Year, Writeoff     18 195
Revolving Loans Amortized Cost Basis     0 0
Revolving Loans Converted to Term     0 0
Charge-offs 0 29 18 216
Residential Home Today        
Financing Receivable, Credit Quality Indicator [Line Items]        
Year One, Originated, Current Fiscal Year, Writeoff     0 0
Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff     0 0
Year Three, Originated, Two Years before Current Fiscal Year, Writeoff     0 0
Year Four, Originated, Three Years before Current Fiscal Year, Writeoff     0 0
Year Five, Originated, Four Years before Current Fiscal Year, Writeoff     0 0
Originated, More than Five Years before Current Fiscal Year, Writeoff     15 103
Revolving Loans Amortized Cost Basis     0 0
Revolving Loans Converted to Term     0 0
Charge-offs 7 73 15 103
Home Equity Line of Credit        
Financing Receivable, Credit Quality Indicator [Line Items]        
Year One, Originated, Current Fiscal Year, Writeoff     0 0
Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff     0 0
Year Three, Originated, Two Years before Current Fiscal Year, Writeoff     0 0
Year Four, Originated, Three Years before Current Fiscal Year, Writeoff     0 0
Year Five, Originated, Four Years before Current Fiscal Year, Writeoff     0 0
Originated, More than Five Years before Current Fiscal Year, Writeoff     0 0
Revolving Loans Amortized Cost Basis     393 369
Revolving Loans Converted to Term     374 292
Charge-offs 213 143 767 661
Home Equity Loan        
Financing Receivable, Credit Quality Indicator [Line Items]        
Year One, Originated, Current Fiscal Year, Writeoff     0 0
Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff     0 0
Year Three, Originated, Two Years before Current Fiscal Year, Writeoff     0 16
Year Four, Originated, Three Years before Current Fiscal Year, Writeoff     0 18
Year Five, Originated, Four Years before Current Fiscal Year, Writeoff     17 0
Originated, More than Five Years before Current Fiscal Year, Writeoff     0 0
Revolving Loans Amortized Cost Basis     0 0
Revolving Loans Converted to Term     0 0
Charge-offs $ 0 $ 18 $ 17 $ 34