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Warrants (Details 9)
12 Months Ended
Oct. 31, 2019
IfrsStatementLineItems [Line Items]  
Expected dividend yield Nil
Warrants Eight [Member]  
IfrsStatementLineItems [Line Items]  
Expected dividend yield Nil
Risk-free interest rate 1.64%
Expected life 4 years
Expected volatility 101.00% [1]
[1] Based on the volatility of comparable publicly traded companies