Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property Plant and Equipment

Property, plant and equipment consist of the following (in thousands):

	December 31, 2016			December 31, 2015
Leasehold improvements	$	14,592		$	13,306
Equipment		15,214			13,758
Furniture and fixtures		3,218			2,808
Construction in progress		1,264			425
Total property, plant and equipment		34,288			30,297
Less: accumulated depreciation		(19,332	)		(16,496	)
Property, plant and equipment, net	$	14,956		$	13,801

Estimated Useful Life

Property Plant and Equipment

Depreciation is calculated using the straight-line method over the estimated useful life of the asset as follows:

Classification	Estimated Useful Life
Leasehold improvements	Shorter of the term of the lease or estimated useful life
Equipment	Three to eight years
Furniture and fixtures	Three to eight years