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Note 9 - Due to Related Party (Details Narrative) - USD ($) | 1 Months Ended | 6 Months Ended | 12 Months Ended | 22 Months Ended |
--- | --- | --- | --- | --- | ---
Oct. 31, 2021 | Sep. 30, 2021 | Oct. 31, 2021 | Oct. 31, 2021 | Dec. 31, 2020 | Oct. 31, 2021 | Apr. 30, 2021
Due To Related Party 1 [Member] |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |
[custom:PromissoryNoteOriginalPrincipalAmount] |  |  |  | $ 1,753,000 |  |  |
Debt Instrument, Interest Rate During Period |  |  |  |  |  | 3.00% |
[custom:RefundRelatedToPrepaidInventoryIssuedByCompany] |  |  | $ 132,200 |  |  |  |
[custom:DebtInstrumentOutstandingBalancePayment] |  | $ 1,620,800 |  |  |  |  |
[custom:DebtInstrumentOutstandingAccruedInterestPayment] |  | $ 45,129 |  |  |  |  |
Due To Related Party 2 [Member] |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |
[custom:PromissoryNoteOriginalPrincipalAmount] |  |  |  |  |  | $ 175,000 |
Debt Instrument, Interest Rate During Period |  |  |  |  |  | 4.75% |
[custom:DebtInstrumentOutstandingBalancePayment] | $ 85,172 |  |  |  |  |  |
[custom:DebtInstrumentOutstandingAccruedInterestPayment] | 12,942 |  |  |  |  |  |
[custom:DebtInstrumentInterestRateDuringPeriod1] |  |  |  |  |  | 5.50% |
[custom:DebtInstrumentInterestRateDuringPeriod2] |  |  |  |  |  | 6.42% |
Due to Other Related Parties, Current | $ 138,771 |  | $ 138,771 | $ 138,771 |  | $ 138,771 | $ 166,529
Due To Related Party 3 [Member] |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate During Period |  |  | 5.00% |  |  |  |
Due to Other Related Parties, Current |  |  |  |  |  |  | $ 74,000
[custom:AdvancesReceivedFromRelatedParty] |  |  |  |  | $ 79,000 |  |

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