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Right of Use Assets and Lease Obligations - Narratives (Details) - CAD ($)
$ in Thousands
 12 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Disclosure of quantitative information about right-of-use assets [line items]    
Sublease rentals due $ 506 $ 1,716
Impairment loss $ 1,210  
Minimum    
Disclosure of quantitative information about right-of-use assets [line items]    
Term of lease contract 5 years  
Maximum    
Disclosure of quantitative information about right-of-use assets [line items]    
Term of lease contract 10 years  
Other revenue    
Disclosure of quantitative information about right-of-use assets [line items]    
Sublease rental income $ 439  
General and administrative expenses    
Disclosure of quantitative information about right-of-use assets [line items]    
Variable lease operating costs $ 2,906