Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses (Details)

v3.7.0.1
Accrued Expenses (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Accrued Liabilities    
Employee compensation and benefits $ 1,340 $ 1,911
External research and preclinical development 3,176 3,290
Professional fees 642 819
Facilities 43 90
Restricted stock liability   5
Total accrued expenses $ 5,201 $ 6,115