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Disclosure of detailed information about royalty interest (Details) - CAD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Statement [Line Items]      
Royalty interest, beginning balance $ 25,831,152 $ 28,798,980 $ 29,327,960
Acquisition   145,000  
Depletion (2,282,276) (2,163,221) (1,716,848)
Impairment charge     (3,973,699)
Cumulative translation adjustments (1,605,133) (949,607) 5,161,567
Royalty interest, ending balance $ 21,943,743 $ 25,831,152 $ 28,798,980