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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)	3 Months Ended		6 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 3,621,000	$ 3,326,000	$ 5,533,000	$ 4,963,000
Other comprehensive income, net of tax:
Decrease in pension liability	110,000	98,000	207,000	195,000
Income tax effect	(33,000)	(31,000)	(64,000)	(62,000)
Decrease in pension liability, net of tax	77,000	67,000	143,000	133,000
Other comprehensive income	77,000	67,000	143,000	133,000
Total comprehensive income	$ 3,698,000	$ 3,393,000	$ 5,676,000	$ 5,096,000

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