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Note 17 – Warrants (Tables) | 9 Months Ended
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Jan. 31, 2024
Note 17 Warrants |
[custom:ScheduleOfWarrantsIssuedAndFairValueTableTextBlock] |
|  | Upon Issuance |  | Outstanding at January 31, 2024
Date of Transaction |  | Number of Warrants |  | Initial Fair Value |  | Number of Warrants |  | Fair Value
| October 2020 |  |  |  | 399,998 |  |  | $ | 267,999 |  |  |  | 266,666 |  |  | $ | 87,196 |
| January 2021 |  |  |  | 675,000 |  |  | $ | 2,870,666 |  |  |  | 540,000 |  |  | $ | 198,189 |
[custom:ScheduleOfAttributesOfWarrantsOustandingTableTextBlock] |
|  | Weighted-average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value
| April 30, 2022 |  |  |  | 3.89 |  |  | $ | 427,533 |
| April 30, 2023 |  |  |  | 2.89 |  |  | $ | — |
| January 31, 2024 |  |  |  | 2.13 |  |  | $ | — |

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