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Note 12 – Convertible Notes (Details Narrative) - USD ($) | 2 Months Ended | 3 Months Ended | 4 Months Ended | 7 Months Ended | 17 Months Ended | 18 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Oct. 31, 2020 | Jul. 31, 2021 | Apr. 30, 2021 | Apr. 30, 2021 | Apr. 30, 2021 | Apr. 30, 2021 | Jul. 31, 2022
Convertible Debenture 2019 Notes [Member] |  |  |  |  |  |  |
Short-Term Debt [Line Items] |  |  |  |  |  |  |
[custom:ConvertibleNoteIssuedAccreditedInvestor] |  |  |  |  |  | $ 300,000 |
[custom:ConvertibleNoteIssuedDirector] |  |  |  |  | $ 125,000 |  |
[custom:ConvertibleNoteIssuedChiefExecutiveOfficer] |  |  |  |  | $ 25,000 |  |
Debt Instrument, Interest Rate During Period |  |  |  |  |  | 12.00% |
[custom:ConvertibleNotesPrincipalConversion] | $ 450,000 |  |  |  |  |  |
[custom:ConvertibleNotesAccruedInterestConversion] | $ 45,204 |  |  |  |  |  |
[custom:ConvertibleNotesConversionShares] | 710,444 |  |  |  |  |  |
Convertible Debenture 2020 Notes [Member] |  |  |  |  |  |  |
Short-Term Debt [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate During Period |  |  |  | 12.00% |  |  |
[custom:ConvertiblePromissoryNotePrincipalAmount] |  |  |  | $ 600,000 |  |  |
[custom:WarrantsToPurchaseCommonStock] |  |  |  | 399,998 |  |  |
[custom:DerivativeLiabilityInitialValue] |  |  |  | $ 728,587 |  |  |
[custom:DerivativeLiabilityInitialValueRelatedToDerivativeFeaturesOfNotes] |  |  |  | 460,588 |  |  |
[custom:DerivativeLiabilityInitialValueRelatedToDerivativeFeaturesOfWarrants] |  |  |  | 267,999 |  |  |
[custom:DebtDiscountToReduceInitialCarryingValueOfNotes] |  |  |  | 580,000 |  |  |
[custom:DebtDiscountAppliedAgainstTransactionFees] |  |  |  | $ 20,000 |  |  |
[custom:ExcessLiabilityOverNetProceedsRecognizedAsDerivativeExpense] |  | $ 148,587 |  |  |  |  |
[custom:WarrantsOutstanding-0] |  |  |  |  |  |  | 266,666
Derivative Liability |  |  |  |  |  |  | $ 557,297
Convertible Debenture 2021 Notes [Member] |  |  |  |  |  |  |
Short-Term Debt [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate During Period |  |  | 12.00% |  |  |  |
[custom:ConvertiblePromissoryNotePrincipalAmount] |  |  | $ 500,000 |  |  |  |
[custom:WarrantsToPurchaseCommonStock] |  |  | 675,000 |  |  |  |
[custom:DerivativeLiabilityInitialValue] |  |  | $ 4,981,701 |  |  |  |
[custom:DerivativeLiabilityInitialValueRelatedToDerivativeFeaturesOfNotes] |  |  | 2,111,035 |  |  |  |
[custom:DerivativeLiabilityInitialValueRelatedToDerivativeFeaturesOfWarrants] |  |  | 2,870,666 |  |  |  |
[custom:DebtDiscountToReduceInitialCarryingValueOfNotes] |  |  | $ 500,000 |  |  |  |
[custom:ExcessLiabilityOverNetProceedsRecognizedAsDerivativeExpense] |  | $ 4,481,701 |  |  |  |  |
[custom:WarrantsOutstanding-0] |  |  |  |  |  |  | 540,000
Derivative Liability |  |  |  |  |  |  | $ 1,143,122

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