Share-Based Payments - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Mar. 29, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value (in dollars per share)	$ 3.02	$ 3.72
Share repurchase program, authorized amount			$ 5,000
Treasury stock (in shares)	120,333
Treasury stock average price (in dollars per share)	$ 5.73
Treasury stock approximate value	$ 708
Remaining repurchase amount	$ 4,300
Equity Incentive Plan 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)	1,300,000
Expiration term of awards	10 years
Strike price as percent of market value	100.00%
Equity Incentive Plan 2021 | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)	2,000,000