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Leases, Commitments and Contingencies - Additional Information (Detail) - USD ($) | 12 Months Ended
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Apr. 30, 2024 | Apr. 30, 2023
Commitments and Contingencies Disclosure [Abstract] |  |
ROU assets | $ 7,454,000 | $ 9,170,000
Operating lease payments | $ 2,594,000 | 2,278,640
Remaining lease term (in years) | 8 years |
Option to extend, term (in years) | 5 years |
Option to terminate, term (in years) | 1 year |
Operating lease expense | $ 3,458,000 | 3,344,000
Operating lease, short term, expense | $ 864,000 | $ 1,065,000
Operating lease, weighted average remaining lease term (in years) | 4 years 2 months 12 days | 5 years 1 month 6 days
Operating lease, weighted average discount rate (as a percent) | 5.10% | 5.00%
Finance lease, weighted average remaining lease term (in years) | 4 years 6 months | 3 years 1 month 6 days
Finance lease, weighted average discount rate (as a percent) | 8.30% | 6.80%
Lease not yet commenced amount | $ 681,000 |
Term of contract | 3 years |

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