Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Share capital - The changes in warrants (Details)

v3.19.3
Share capital - The changes in warrants (Details) - Warrants - $ / shares
9 Months Ended 12 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Disclosure of classes of share capital [line items]    
Number of warrants, Warrants outstanding, beginning 22,369,718 11,856,857
Number of warrants, Warrants issued 0 10,807,093
Number of warrants, Warrants exercised (1,116,323) (294,232)
Number of warrants, Warrants outstanding, ending 21,253,395 22,369,718
Weighted average exercise price, Warrants outstanding, beginning $ 5.03 $ 4.70
Weighted average exercise price, Warrants issued 0.00 5.36
Weighted average exercise price, Warrants exercised 3.82 5.08
Weighted average exercise price, Warrants outstanding, ending $ 4.41 $ 5.03