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Changes in the derivative liability (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jul. 31, 2022 | Apr. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract] |  |
Balance, beginning of period | $ 1,607,497 | $ 2,812,767
Additions |  |
Eliminated upon conversion of notes/exercise of warrants |  | (163,141)
Changes in fair value | 92,922 | (1,042,129)
Balance, end of period | $ 1,700,419 | $ 1,607,497

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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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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