Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses (Details)

v3.5.0.2
Accrued Expenses (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Accrued Liabilities    
Employee compensation and benefits $ 1,550 $ 709
External research and preclinical development 1,853 981
Professional fees 391 399
Facilities 34 414
Restricted stock liability 6 1
Total accrued expenses $ 3,834 $ 2,504