Property and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2016

Property Plant And Equipment [Abstract]

Summary of Property and Equipment, Net

Property and equipment, net consisted of the following (in thousands):

	As of December 31,
	2016			2015
Laboratory equipment	$	2,632		$	2,528
Software and computer equipment		449			441
Furniture and fixtures		153			153
Vehicles		204			204
Leasehold improvements		1,991			1,900
Assets under construction		20			18
Property and equipment, gross		5,449			5,244
Less accumulated depreciation and amortization		(4,941	)		(4,659	)
Property and equipment, net	$	508		$	585