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TRADE AND SETTLEMENT RECEIVABLES, AND OTHER ASSETS - Disclosure of detailed information about receivables (Details) - CAD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Trade And Other Current Receivable [Line Items]    
Receivables $ 2,876 $ 981
Royalty income receivable [Member]    
Trade And Other Current Receivable [Line Items]    
Receivables 66 15
Refundable taxes [Member]    
Trade And Other Current Receivable [Line Items]    
Receivables 1,723 174
Recoverable exploration expenditures and advances [Member]    
Trade And Other Current Receivable [Line Items]    
Receivables 679 460
Other [Member]    
Trade And Other Current Receivable [Line Items]    
Receivables $ 408 $ 332