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Transaction costs
12 Months Ended
Jan. 31, 2020
Transaction costs [abstract]  
Transaction costs
30.

Transaction costs

  
 

Transaction costs for the years ended January 31:

  2020  2019  2018 
Acquisition of subsidiaries$331,973 $2,154,102 $ 
Financing commissions   2,819,889   
 $331,973 $4,973,991 $