Accrued Liabilities

6 Months Ended

Jun. 30, 2015

Payables and Accruals [Abstract]

Accrued Liabilities

4. Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

	June 30, 2015		December 31, 2014
Accrued research and development services	$	7,585	$	7,814
Accrued compensation and benefits		3,528		4,167
Accrued consulting and professional fees		3,666		1,497
Other		1,683		340
	$	16,462	$	13,818