Property and Equipment

12 Months Ended

Dec. 31, 2016

Property Plant And Equipment [Abstract]

Property and Equipment

(4) Property and Equipment

Property and equipment at December 31, 2016 and 2015 consisted of the following (in thousands):

	Estimated		December 31,
	Useful Life In Years		2016			2015
Laboratory equipment		5	$	2,358		$	2,087
Furniture and fixtures		5		509			484
Office and computer equipment		3		232			159
Leasehold improvements				915			891
Property and equipment, gross				4,014			3,621
Less accumulated depreciation and amortization				(2,960	)		(2,678	)
Property and equipment, net			$	1,054		$	943

Depreciation and amortization expense for the years ended December 31, 2016, 2015 and 2014 was $282,000, $193,000 and $124,000, respectively.