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RECEIVABLES - Disclosure of details about currency of receivables (Details) - CAD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Trade And Other Current Currencies Receivable [Line Items]    
Receivables $ 981 $ 7,506
Canadian Dollars [Member]    
Trade And Other Current Currencies Receivable [Line Items]    
Receivables 158 484
US Dollars [Member]    
Trade And Other Current Currencies Receivable [Line Items]    
Receivables 453 6,934
Swedish Krona [Member]    
Trade And Other Current Currencies Receivable [Line Items]    
Receivables 370 72
Other [Member]    
Trade And Other Current Currencies Receivable [Line Items]    
Receivables $ 0 $ 16