Property and Equipment

3 Months Ended

Mar. 31, 2020

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and Equipment 

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

	March 31, 2020			December 31, 2019
Leasehold improvements	$	5,321		$	5,321
Lab and clean room equipment	15,128			14,894
Furniture and office equipment	15,405			15,118
Construction in progress	1,463			972
Property and equipment, gross	37,317			36,305
Less accumulated depreciation	(25,484		)	(23,977		)
Property and equipment, net	$	11,833		$	12,328

Depreciation expense for the three months ended March 31, 2020 and 2019, was approximately $1.5 million and $1.7 million, respectively.