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Accumulated Other Comprehensive Income (Loss)
 12 Months Ended
Apr. 30, 2024
Equity [Abstract]  
Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss)
The Company's other comprehensive income (loss) consists of unrealized gains and losses on the translation of the assets, liabilities, and equity of its foreign subsidiaries, and additional minimum pension liability adjustments, net of income taxes. 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, 2022$(2,543)$(1,199)$(3,742)
Foreign currency translation adjustment(290)— (290)
Change in unrecognized actuarial loss on pension obligations— 590 590 
Balance at April 30, 2023(2,833)(609)(3,442)
Foreign currency translation adjustment(549)(49)(598)
Change in unrecognized actuarial loss on pension obligations— 509 509 
Settlement loss included in net income
— 4,019 4,019 
Income taxes on postretirement benefit plans
— (3,870)(3,870)
Balance at April 30, 2024$(3,382)$— $(3,382)