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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)
$ in Thousands
3 Months Ended
Jul. 31, 2023
Jul. 31, 2022
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME    
Net income $ 1,346 $ 1,912
Other comprehensive income, net of tax:    
Decrease in pension liability   97
Income tax effect   (31)
Decrease in pension liability, net of tax   66
Other comprehensive income   66
Total comprehensive income $ 1,346 $ 1,978