Accrued Expenses (Tables)

9 Months Ended

Sep. 30, 2018

Payables and Accruals [Abstract]

Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following (in thousands):

	September 30,		December 31,
	2018		2017
Compensation expense	$	1,841	$	2,325
Professional fees	1,077		1,322
Research and development fees	1,811		791
Audit and tax fees	480		424
Other current liabilities	772		1,308
Total	$	5,981	$	6,170