Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2012

Property and Equipment

Schedule of property and equipment

	December 31,
(in thousands)	2012			2011
Computer equipment	$	3,027		$	3,158
Software		5,073			4,628
Furniture and fixtures		3,829			3,821
Laboratory equipment		29,229			28,894
Leasehold improvements		17,416			17,263
		58,574			57,764
Less accumulated depreciation and amortization		(49,420	)		(47,392	)
Property and equipment, net	$	9,154		$	10,372