Property and Equipment

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

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



	December 31,
	2016			2015
Leasehold improvements	$	3,274		$	2,684
Lab and clean room equipment	8,666			4,564
Furniture and equipment	7,051			4,577
Construction in Progress	3,300			2,629
Property and equipment, gross	22,291			14,454
Less accumulated depreciation	(8,505		)	(4,979		)
Property and equipment, net	$	13,786		$	9,475

Included in property and equipment is approximately $427,000 of capital leases. The corresponding liability of approximately $31,000 is included in other liabilities in the accompanying consolidated balance sheet. Also included is approximately $1,000,000 in leasehold improvements paid for by the landlord of our main operating facility with a corresponding liability included in long term liabilities, which is amortized over the term of the lease. As of December 31, 2016 and 2015, the liability was $188,000 and $361,000, respectively.

Depreciation expense for the years ended December 31, 2016, 2015, and 2014 was approximately $3,333,000, $1,799,000, and $1,197,000, respectively.