Annual report pursuant to Section 13 and 15(d)

Share based compensation - Unrecognized Compensation Cost (Details)

v3.8.0.1
Share based compensation - Unrecognized Compensation Cost (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2017
USD ($)
Share based compensation  
Unrecognized compensation cost $ 10,086
Expected weighted-average cost recognition period (in years) 2 years 10 months 24 days