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SEGMENTED INFORMATION (Narrative) (Details) - CAD ($)
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Statement [Line Items]        
Royalty interest $ 21,943,743 $ 25,831,152 $ 28,798,980 $ 29,327,960
Serbia [Member]        
Statement [Line Items]        
Royalty interest $ 200,000