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Stock-based Compensation - Summary of Stock Option Activity (Details) - $ / shares | 3 Months Ended | 12 Months Ended
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Jul. 31, 2024 | Apr. 30, 2024
Service-based Stock Option |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] |  |
Beginning Balance, Number of options outstanding | 18,659 |
Granted, Number of options outstanding | 1,500 |
Ending Balance, Number of options outstanding | 20,159 | 18,659
Non-vested, Number of options outstanding | 12,929 |
Vested, Number of options outstanding | 7,230 |
Weighted average exercise price |  |
Beginning Balance, Weighted average exercise price | $ 121 |
Granted, Weighted average exercise price | 5.15 |
Ending Balance, Weighted average exercise price | 121 | $ 121
Nonvested, Weighted average exercise price | 42 |
Vested, Weighted average exercise price | $ 264 |
Average remaining contractual life (in years) |  |
Outstanding, Average remaining contractual life (in years) | 8 years 8 months 12 days | 8 years 10 months 24 days
Granted, Average remaining contractual life (in years) | 9 years 9 months 18 days |
Non-vested, Average remaining contractual life (in years) | 9 years 3 months 18 days |
Vested, Average remaining contractual life (in years) | 7 years 8 months 12 days |
Performance-based Stock Option |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] |  |
Beginning Balance, Number of options outstanding | 5,456 |
Ending Balance, Number of options outstanding | 5,456 | 5,456
Non-vested, Number of options outstanding | 3,565 |
Vested, Number of options outstanding | 1,891 |
Weighted average exercise price |  |
Beginning Balance, Weighted average exercise price | $ 502 |
Ending Balance, Weighted average exercise price | 502 | $ 502
Nonvested, Weighted average exercise price | 626 |
Vested, Weighted average exercise price | $ 268 |
Average remaining contractual life (in years) |  |
Outstanding, Average remaining contractual life (in years) | 5 years 8 months 12 days | 5 years 10 months 24 days
Non-vested, Average remaining contractual life (in years) | 5 years 4 months 24 days |
Vested, Average remaining contractual life (in years) | 6 years |

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- Definition Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Contractual Term. + References No definition available. + Details
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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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