Loans Receivable And Allowance For Credit Losses (Reserve for Off-Balance Sheet Credit Exposures) (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
| Beginning Balance | $ 4,725 | $ 3,834 | $ 6,003 | $ 4,095 |
| Provision for credit losses | 913 | (155) | (365) | (432) |
| Ending Balance | $ 5,638 | $ 3,679 | $ 5,638 | 3,679 |
| Accounting Standards Update 2022-02 [Member] | Accounting Standards Update 2022-02 Cumulative Effect, Period of Adoption [Member] | ||||
| Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
| Beginning Balance | $ 16 | |||