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Disclosure of detailed information about warrants, activity (Details)
 12 Months Ended
Dec. 31, 2017
CAD ($)
Dec. 31, 2015
CAD ($)
Statement [Line Items]    
Number of warrants outstanding in share-based payment arrangement at beginning of period   9,175,533
Weighted average exercise price of warrants outstanding in share-based payment arrangement at beginning of period   $ 4.56
Number of warrants expired in share-based payment arrangement   (9,175,533)
Weighted average exercise price of warrants expired in share-based payment arrangement   $ 4.56
Number of warrants granted in share-based payment arrangement 2,623,306  
Weighted average exercise price of warrants granted in share-based payment arrangement $ 2.00  
Number of warrants outstanding in share-based payment arrangement at end of period 2,623,306 0
Weighted average exercise price of warrants outstanding in share-based payment arrangement at end of period $ 2.00 $ 0