Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) $ in Thousands	3 Months Ended	12 Months Ended
	Jul. 31, 2023 USD ($) $ / shares shares	Apr. 30, 2023 USD ($) $ / shares shares
Allowance for doubtful accounts receivable | $	$ 457	$ 418
Property and equipment, accumulated depreciation | $	32,731	32,371
Capitalized software, accumulated amortization | $	43,340	43,202
Other intangibles, accumulated amortization | $	$ 14,295	$ 14,062
Share conversion ratio	1	1
Class A Common Shares
Common stock, par value (in usd per share) | $ / shares	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	36,929,495	36,907,242
Common stock, shares outstanding (in shares)	36,929,495	36,907,242
Common stock, shares outstanding, net (in shares)	32,340,863	32,318,610
Common stock, shares issued, net (in shares)	32,340,863	32,318,610
Class A treasury stock shares (in shares)	4,588,632	4,588,632
Class B Common Shares
Common stock, par value (in usd per share) | $ / shares	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	10,000,000	10,000,000
Common stock, shares issued (in shares)	1,821,587	1,821,587
Common stock, shares outstanding (in shares)	1,821,587	1,821,587