CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)	12 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 21,790,000	$ 15,862,000
Other comprehensive income, net of tax:
Pension settlement	7,597,000
Income tax effect	(2,354,000)
Pension settlement, net of tax	5,243,000
Decrease in pension liability	615,000	75,000
Income tax effect	(115,000)	(25,000)
Decrease in pension liability, net of tax	500,000	50,000
Other comprehensive income	5,743,000	50,000
Total comprehensive income	$ 27,533,000	$ 15,912,000