Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) $ in Thousands	9 Months Ended	12 Months Ended
	Jan. 31, 2024 USD ($) $ / shares shares	Apr. 30, 2023 USD ($) $ / shares shares
Allowance for doubtful accounts receivable | $	$ 220	$ 418
Property and equipment, accumulated depreciation | $	32,454	32,371
Capitalized software, accumulated amortization | $	43,534	43,202
Other intangibles, accumulated amortization | $	$ 16,258	$ 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)	36,933,495	36,907,242
Common stock, shares outstanding (in shares)	31,398,542	32,318,610
Class A treasury stock shares (in shares)	5,534,953	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