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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 |  |

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