Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) $ in Thousands	6 Months Ended	12 Months Ended
	Oct. 31, 2022 USD ($) $ / shares shares	Apr. 30, 2022 USD ($) $ / shares shares
Allowance for doubtful accounts receivable | $	$ 354	$ 423
Property and equipment, accumulated depreciation | $	31,755	31,242
Capitalized software, accumulated amortization | $	42,726	42,007
Other intangibles, accumulated amortization | $	$ 13,597	$ 13,228
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)	36,503,495	36,405,695
Common stock, shares outstanding (in shares)	36,503,495	36,405,695
Common stock, shares outstanding, net (in shares)	31,914,863	31,817,063
Common stock, shares issued, net (in shares)	31,914,863	31,817,063
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