Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property and equipment consists of the following (in thousands):

	DECEMBER 31,
	2013			2014
Laboratory equipment	$	1,934		$	2,060
Leasehold improvements	98			135
Computer equipment and software	188			285
Office equipment, furniture, and fixtures	47			124
	2,267			2,604
Less: accumulated depreciation and amortization	(1,972		)	(2,203		)
Total property and equipment, net	$	295		$	401