Annual report pursuant to Section 13 and 15(d)

Accrued Expenses (Details)

v3.8.0.1
Accrued Expenses (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Accrued Liabilities    
External research and preclinical development $ 5,875 $ 3,290
Employee compensation and benefits 2,494 1,911
Professional fees 1,225 819
Facilities 134 90
Restricted stock liability   5
Total accrued expenses $ 9,728 $ 6,115