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FINANCIAL INSTRUMENTS (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]      
Accounts payable and accrued liabilities $ 5,885 $ 3,512 $ 3,726
Due to related parties 157 187 199
Term facility 5,884 4,667 4,667
Equipment loans 411 398 1,191
Finance lease obligations 869 1,233 1,377
Total 1,819 $ 2,349 $ 2,812
Financial instruments [member]      
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]      
Accounts payable and accrued liabilities 5,885    
Due to related parties 157    
Minimum rental and lease payments 246    
Term facility 7,669    
Equipment loans 978    
Finance lease obligations 1,889    
Total 16,824    
Not later than one year [member]      
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]      
Accounts payable and accrued liabilities 5,885    
Due to related parties 157    
Minimum rental and lease payments 162    
Term facility 1,432    
Equipment loans 550    
Finance lease obligations 942    
Total 9,128    
Later Than One Year And Not Later Than Five Years [Member]      
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]      
Accounts payable and accrued liabilities    
Due to related parties    
Minimum rental and lease payments 74    
Term facility 6,237    
Equipment loans 428    
Finance lease obligations 947    
Total 7,686    
Later than five years [member]      
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]      
Accounts payable and accrued liabilities    
Due to related parties    
Minimum rental and lease payments 10    
Term facility    
Equipment loans    
Finance lease obligations    
Total $ 10