Property and Equipment

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and Equipment

Property and equipment and related accumulated depreciation are as follows (in thousands):

	Estimated Useful Life (Years)	December 31,
		2016			2015
Lab equipment	5	$	457		$	1,961
Furniture and fixtures	4	16			107
Computer equipment	3	73			171
Software	3	28			25
Leasehold improvements	Lesser of useful life or remaining lease term	293			100
		867			2,364
Less accumulated depreciation and amortization		(71		)	(1,957		)
Total property and equipment, net		$	796		$	407

Depreciation expense amounted to $178,000, $366,000 and $410,000 for the years ended December 31, 2016, 2015 and 2014, respectively. During 2016, the Company disposed/sold property and equipment with a net book value of $299,000 for proceeds of $325,000.