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Disclosure of net income (loss) per share (Details) - CAD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Earnings per share [abstract]      
Net income (loss) $ 62,117,601 $ (7,393,384) $ (2,683,482)
Weighted average number of common shares outstanding - basic 79,979,320 78,002,082 73,874,415
Dilutive effect of stock options and warrants outstanding 674,154 0 0
Weighted average number of common shares outstanding - diluted 80,653,474 78,002,082 73,874,415
Basic earnings (loss) per share $ 0.78 $ (0.09) $ (0.04)
Diluted earnings (loss) per share $ 0.77 $ (0.09) $ (0.04)