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Long term debt
12 Months Ended
Jan. 31, 2020
Borrowings Abstract  
Long term debt

17. Long term debt

  Mortgage on  Equipment and    
  building  Vehicle loans  Total 
Balance, January 31, 2019, 2018 and 2017$ $ $ 
Assumed in PP&E acquisitions 513,294  186,463  699,757 
Payments (16,910) (62,511) (79,421)
Balance, January 31, 2020$496,384 $123,952 $620,336 
Current portion$23,707 $102,412 $126,119 
Long-term portion$472,677 $21,540 $494,217