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Capital management (Tables)
 12 Months Ended
Dec. 31, 2019
Statement Line Items  
Schedule of capital management

  

    2019     2018  
Share capital     94,500       75,045  
Deficit     (101,609 )     (90,784 )
Debentures     44,039       42,156  
Convertible debentures     12,373       11,889  
Credit facilities     76,472       76,465