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v3.26.1

Stock Options and Share-Based Compensation - Additional Information (Detail) - USD ($) $ in Thousands |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Aug. 26, 2015 | Aug. 31, 2023 | Apr. 30, 2026 | Apr. 30, 2025 | Apr. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Deferred income tax benefit |  |  | $ 20 | $ 2,202 |
Options outstanding (in shares) |  |  | 0 | 0 | 24,700
Restricted Stock Units (RSUs) |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Shares available for issuance (in shares) |  |  | 226,280 | 187,226 | 168,791
2017 Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Shares available for future grants (in shares) |  | 168,791 |  |  |
2017 Plan | Restricted Stock Units (RSUs) | Share-Based Payment Arrangement, Tranche One |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Shares available for issuance (in shares) |  | 64,633 |  |  |
2008 Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of shares authorized under stock option plan (in shares) |  |  | 300,000 |  |
Increase in number of shares available under stock option plan (in shares) | 300,000 |  |  |  |
2008 Plan | Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Terms of award (in years) |  |  | 10 years |  |
Two Thousand Twenty Three Omnibus Incentive Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Shares available for future grants (in shares) |  |  | 290,636 |  |
Two Thousand Twenty Three Omnibus Incentive Plan | Restricted Stock Units (RSUs) |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation expense |  |  | $ 2,126 | $ 1,441 |
Deferred income tax benefit |  |  | $ 452 | $ 337 |
Vesting period (in years) |  |  | 3 years |  |
Remaining estimated compensation expense |  |  | $ 2,311 |  |
Remaining estimated compensation expense, period |  |  | 1 year 7 months 6 days |  |
Two Thousand Twenty Three Omnibus Incentive Plan | Restricted Stock Units (RSUs) | Share-Based Payment Arrangement, Tranche One |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Shares available for issuance (in shares) |  | 374,633 |  |  |
Increase in number of shares reserved for issuance (in shares) |  | 310,000 |  |  |
Two Thousand Twenty Three Omnibus Incentive Plan | Service Components | Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period (in years) |  |  | 3 years |  |

X
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