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4. Leases (Details) - USD ($)
3 Months Ended
Apr. 30, 2020
Nov. 30, 2019
Oct. 31, 2019
Operating lease right-of-use assets $ 794,798 $ 1,497,000 $ 0
Operating Lease, Liability 1,326,463 $ 1,620,000  
Impairment to Right-of-Use Assets 423,000    
Leases      
Impairment to Right-of-Use Assets 248,000    
Passur Network 1      
Impairment to Right-of-Use Assets $ 175,000