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RESTRICTED CASH (Narrative) (Details) - CAD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Restricted Cash [Line Items]    
Restricted cash $ 1,418 $ 1,947
Held as collateral for its corporate credit cards [Member]    
Restricted Cash [Line Items]    
Restricted cash 196 187
Held by wholly-owned subsidiaries for ongoing option agreements [Member]    
Restricted Cash [Line Items]    
Restricted cash $ 1,222 $ 1,760