CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)
Net income	$ 1,108	$ 3,621	$ 2,454	$ 5,533
Other comprehensive income, net of tax:
Decrease in pension liability		110	1	207
Income tax effect		(33)		(64)
Decrease in pension liability, net of tax		77	1	143
Other comprehensive income		77	1	143
Total comprehensive income	$ 1,108	$ 3,698	$ 2,455	$ 5,676