Accrued Expenses

6 Months Ended

Jun. 30, 2016

Payables and Accruals [Abstract]

Accrued Expenses

Accrued Expenses

	June 30, 2016		December 31, 2015
Accrued research and development expenses	$	2,193	$	1,903
Accrued employee bonus compensation	413		776
Employee withholdings	25		42
Other accrued expenses	279		428
Total accrued expenses	$	2,910	$	3,149