Changes in the derivative liability (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jan. 31, 2022 |
Jan. 31, 2021 |
Jan. 31, 2022 |
Jan. 31, 2021 |
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| Derivative Instruments and Hedging Activities Disclosure [Abstract] | ||||
| Balance, beginning of period | $ 2,376,565 | $ 812,390 | $ 2,812,767 | |
| Additions | 4,981,701 | 5,710,288 | ||
| Eliminated upon exercise of warrants | (163,141) | |||
| Changes in fair value | (1,026,466) | 3,350,135 | (1,299,527) | 3,433,938 |
| Balance, end of period | $ 1,350,099 | $ 9,144,226 | $ 1,350,099 | $ 9,144,226 |
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- References No definition available.
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- References No definition available.
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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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