PROPERTY AND EQUIPMENT

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

PROPERTY AND EQUIPMENT

PROPERTY AND EQUIPMENT

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

	December 31,			December 31,
	2018			2017
Furniture and office equipment	$	2,237		$	5,986
Machinery and equipment	11,391			10,783
Laboratory equipment	351			3,335
Leasehold improvements	9,858			6,841
	23,837			26,945
Less: Accumulated depreciation and amortization	(10,773		)	(13,921		)
Property and equipment, net	$	13,064		$	13,024

Depreciation expense was $4.7 million, $2.0 million and $2.5 million for the years ended December 31, 2018, 2017 and 2016, respectively. Depreciation for the year ended December 31, 2018 includes $2.7 million of accelerated depreciation related of leasehold improvements in our former Newark, California headquarters in anticipation of our exit of that facility on September 30, 2018.