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Leases - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Oct. 31, 2023 | Oct. 31, 2022 | Oct. 31, 2023 | Oct. 31, 2022 | Apr. 30, 2023
Leases [Abstract] |  |  |  |  |
Right of use assets | $ 8,393 |  | $ 8,393 |  | $ 9,170
Operating cash paid to settle lease liabilities |  |  | $ 1,282 | $ 1,026 |
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 | 847 | $ 900 | $ 1,714 | 1,734 |
Operating lease, short term, expense | $ 204 | $ 398 | $ 432 | $ 708 |
Weighted average remaining lease term, operating lease (in years) | 4 years 7 months 6 days |  | 4 years 7 months 6 days |  |
Weighted average discount rate, operating lease | 5.10% |  | 5.10% |  |
Weighted average remaining lease term, finance lease (in years) | 5 years |  | 5 years |  |
Weighted average discount rate, finance lease | 8.50% |  | 8.50% |  |
Lease not yet commenced |  |  | $ 681 |  |
Operating lease, lease not yet commenced, term (in years) | 3 years |  | 3 years |  |

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- Definition Weighted average discount rate for finance lease calculated at point in time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(4) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI https://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 + Details
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- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + Details
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