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ROYALTY INTERESTS (Narrative) (Details) - CAD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Royalty Interests [Line Items]      
Royalty income $ 1,439 $ 2,131  
Royalty Interest Depletion $ 802 1,732  
Gold tax, percentage 5.00%    
Direct Gold Tax Amount $ 42 92  
Royalty interest 13,488 $ 14,346 $ 21,943
Corvus Royalty Interests [Member]      
Royalty Interests [Line Items]      
Royalty interest $ 350    
Corvus Royalty Interests [Member] | Bottom of range [member]      
Royalty Interests [Line Items]      
Net Smelter Return Royalty 1.00%    
Corvus Royalty Interests [Member] | Top of range [member]      
Royalty Interests [Line Items]      
Net Smelter Return Royalty 3.00%    
Millrock Royalty Interests [Member]      
Royalty Interests [Line Items]      
Royalty interest $ 211    
Leeville Mine [Member]      
Royalty Interests [Line Items]      
Gross smelter return royalty 1.00%    
East Ore Body Mine [Member]      
Royalty Interests [Line Items]      
Gross smelter return royalty 1.00%    
North Pipeline [Member]      
Royalty Interests [Line Items]      
Description of production royalty Should the property become producing, the Company will receive a production royalty of US$0.50 per yard of ore processed or 4% of net profit, whichever is greater.