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Long-term debt (Tables)
 12 Months Ended
Dec. 31, 2019
Other Liabilities Disclosure [Abstract]  
Schedule of term loan [Table Text Block]
  December 31, 2019  December 31, 2018 
  $   $ 
       
       
Term loan facility 1,005  1,502 
Secured loan 192  330 
Total debt 1,197  1,832 
       
Less: current portion 727  692 
       
Total long-term debt 470  1,140 
Schedule of term loan principal repayments [Table Text Block]
2020727 (CAD 945)
2021470 (CAD 610)