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Disclosure of detailed information about options, valuation assumptions (Details) - CAD
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Statement [Line Items]    
Expected stock price volatility 81.72% 87.15%
Expected life of options 5.0 5.0
Risk free interest rate 1.53% 0.68%
Expected forfeitures 0.00% 0.00%
Expected dividend yield 0.00% 0.00%
Weighted average fair value per option granted in the year CAD 2.13 CAD 1.65