Property, Plant, and Equipment (Tables)

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Property, Plant, and Equipment

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

	December 31,
	2014			2013
Land	$	3,951		$	3,951
Buildings	23,815			18,371
Building improvements	20,985			15,711
Leasehold improvements	5,738			5,185
Computer hardware and software	31,816			29,353
Manufacturing test equipment	15,133			14,715
Furniture and fixtures	4,130			3,917
	105,568			91,203
Less: accumulated depreciation	(57,661		)	(54,067		)
	$	47,907		$	37,136