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Accumulated Other Comprehensive Income (Loss) (Tables)
12 Months Ended
Apr. 30, 2025
Equity [Abstract]  
Schedule of Before Tax Income (Loss) Related Income Tax Effect and Accumulated Balances The before tax income (loss), related income tax effect, and accumulated balances are as follows:
$ in thousandsForeign
Currency
Translation
Adjustment
Minimum
Pension
Liability
Adjustment
Total
Accumulated
Other
Comprehensive
Income (Loss)
Balance at April 30, 2023$(2,833)$(609)$(3,442)
Foreign currency translation adjustment(549)(49)(598)
Change in unrecognized actuarial loss on pension obligations— 509 509 
Settlement loss included in net income
— 4,019 4,019 
Income taxes on postretirement benefit plans
— (3,870)(3,870)
Balance at April 30, 2024(3,382)— (3,382)
Foreign currency translation adjustment(421) (421)
Balance at April 30, 2025$(3,803)$ $(3,803)