Accrued Liabilities (Tables)

9 Months Ended

Sep. 30, 2018

Payables and Accruals [Abstract]

Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

	September 30, 2018		December 31, 2017
Research and development related	$	7,590	$	4,962
Compensation related		2,419		2,345
Consulting and professional services		1,086		1,012
Other		632		256
	$	11,727	$	8,575