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v3.22.2

Fair Value Measurements (Tables) | 12 Months Ended
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Apr. 30, 2022
Fair Value Disclosures [Abstract] |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions | Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
|  | April 30, 2022 |  |  | April 30, 2021 |
Dividend rate |  |  | N/A |  |  |  | 0.0 | %
Risk-free rate |  |  | N/A |  |  |  | 0.01% -0.02 | %
Expected life (years) |  |  | N/A |  |  |  | 0.2 - 0.6 |
Expected volatility |  |  | N/A |  |  |  | 1.498 |

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