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Summary of warrants issued and fair values (Details) - USD ($)
 1 Months Ended
Jan. 31, 2021
Oct. 31, 2020
Note 16 Warrants    
[custom:NumberOfWarrantsUponIssuance] 675,000 399,998
[custom:InitialFairValueOfWarrantsUponIssuance] $ 2,870,666 $ 267,999