Accrued Liabilities

12 Months Ended

Dec. 31, 2012

Accrued Liabilities [Abstract]

Accrued Liabilities

ACCRUED LIABILITIES

Accrued liabilities consisted of the following (in thousands):

	December 31,
	2012			2011
Accrued payroll and employee related expenses	$	9,951		$	8,064
Accrued taxes	1,003			516
Deferred rent	800			683
Accrued clinical study expense	671			353
Employee stock purchase plan liability	602			412
Accrued royalty expense and license agreement termination (see Note 13)	528			3,533
Accrued legal costs	479			496
Accrued indemnification costs (see Note 14)	10			2,900
Accrued acquisition milestone payment (see Note 4)	—			6,000
Other accrued expenses	2,948			2,005
Total accrued liabilities	16,992			24,962
Less: long-term portion	(991		)	(706		)
Accrued liabilities: current portion	$	16,001		$	24,256