Annual report pursuant to Section 13 and 15(d)

Research Agreement (Details)

v3.8.0.1
Research Agreement (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Research Agreement          
Revenue $ 1,101 $ 317 $ 1,101 $ 317 $ 317
Multinational Pharmaceutical Company | Research Agreement          
Research Agreement          
Revenue     $ 1,100 $ 300