Accrued Expenses

3 Months Ended

Mar. 31, 2016

Payables and Accruals [Abstract]

Accrued Expenses

Accrued Expenses

	March 31, 2016		December 31, 2015
Accrued research and development expenses	$	1,950	$	1,903
Accrued employee bonus compensation	215		776
Employee withholdings	25		42
Other accrued expenses	384		428
Total accrued expenses	$	2,574	$	3,149