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v3.24.4

Summary of restricted stock activity under the Plan (Details) - Restricted Stock [Member] - $ / shares | 6 Months Ended |
--- | --- | ---
Oct. 31, 2024 | Oct. 31, 2023 | Apr. 30, 2021
[custom:ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockUnvestedAndOutstandingNumber-0] | 1,758,313 | 175,130 | 781,060
[custom:SharebasedCompensationSharesRestrictedStockUnvestedAndOutstandingWeightedAverageExercisePrice-0] | $ 1.16 | $ 2.09 | $ 2.44
[custom:ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockGrantsInPeriodGross] | 2,497,599 | 298,643 |
[custom:ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockGrantsInPeriodWeightedAverageGrantDateFairValue] | $ 1.10 | $ 1.06 |
[custom:SharebasedCompensationArrangementBySharebasedPaymentAwardRestrictedStockNumberVestedInPeriod] | (914,416) | (485,024) |
[custom:ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockNumberVestedInPeriodWeightedAverageGrantDateFairValue] | $ 1.18 | $ 1.92 |
[custom:SharebasedCompensationArrangementBySharebasedPaymentAwardRestrictedStockNonvestedOptionsForfeitedNumberOfShares] |  | (419,549) |
[custom:ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice] |  | $ 2.09 |
[custom:SharebasedCompensationArrangementBySharebasedPaymentAwardRestrictedStockNonvestedOptionsForfeitedNumberOfShares] |  | 419,549 |

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