Quarterly report pursuant to Section 13 or 15(d)

Loss per share (Details)

v3.7.0.1
Loss per share (Details) - shares
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Share options    
Antidilutive securities    
Potentially dilutive equity instruments excluded from the diluted loss per share (in shares) 67,828,170 44,159,031