Derivatives and Hedging Activities (Schedule of Cash Flow Hedge Included in Accumulated Other Comprehensive Income (Loss), Net of Income Taxes) (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Dec. 31, 2022 |
Sep. 30, 2022 |
Dec. 31, 2021 |
Sep. 30, 2021 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
| Derivative Instruments, Gain (Loss) [Line Items] | ||||||
| Net increase in accumulated other comprehensive income, net of tax | $ 3 | $ 1,879 | $ 1,172 | $ 413 | $ 1,882 | $ 1,585 |
| Interest rate swap agreement | ||||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||||
| Net interest (income) expense recognized as a result of interest rate swap | (345) | 579 | (313) | 1,157 | ||
| Unrealized gain in fair value of interest rate swap | 349 | 999 | 2,849 | 983 | ||
| Net increase in accumulated other comprehensive income | 4 | 1,578 | 2,536 | 2,140 | ||
| Income tax effect | 1 | 406 | 652 | 555 | ||
| Net increase in accumulated other comprehensive income, net of tax | $ 3 | $ 1,172 | $ 1,884 | $ 1,585 | ||