Accrued Expenses - (Tables)

12 Months Ended

Dec. 31, 2014

Payables and Accruals [Abstract]

Schedule of Accrued Expenses

Accrued expenses consist of the following (in thousands):

	December 31,
	2014		2013
Compensation and other employee related costs	$	10,960	$	8,715
Contributions withheld for Employee Stock Purchase Plan	94		976
Royalties	1,575		1,184
Clinical and regulatory costs	376		327
Government grants	858		974
Rent	1,841		1,893
Taxes	2,479		939
Other	1,183		1,316
	$	19,366	$	16,324