v3.19.2
Shareholders' equity (deficit) - Share-based compensation - Recognized share-based compensation expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Share-based compensation        
Share-based compensation expense $ 276 $ 80 $ 487 $ 204
Administration        
Share-based compensation        
Share-based compensation expense 133 21 203 50
Research and development        
Share-based compensation        
Share-based compensation expense 109 49 234 125
Commercial activities        
Share-based compensation        
Share-based compensation expense $ 34 $ 10 $ 50 $ 29