Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Share capital (Details 3)

v3.19.1
Share capital (Details 3) - $ / shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disclosure of classes of share capital [line items]    
Number of warrants, Warrants issued 1,020,094  
Number of warrants, Warrants exercised (294,232)  
Warrants    
Disclosure of classes of share capital [line items]    
Number of warrants, Warrants outstanding, beginning 11,856,857 9,266,793
Number of warrants, Warrants issued 10,807,093 2,592,564
Number of warrants, Warrants exercised (294,232) (2,500)
Number of warrants, Warrants outstanding, ending 22,369,718 11,856,857
Weighted average exercise price, Warrants outstanding, beginning $ 4.70 $ 3.28
Weighted average exercise price, Warrants issued 5.36 9.82
Weighted average exercise price, Warrants exercised 5.08 4.00
Weighted average exercise price, Warrants outstanding, ending $ 5.03 $ 4.70