Property, Plant, and Equipment (Tables)

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

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

	Estimated Useful Life (in years)			December 31,
				2014			2013
Automobiles	5			$	23		$	—
Leasehold improvements	5	to	20	2,144			2,869
Computer equipment	3	to	7	25,397			35,554
Machinery and equipment	3	to	5	6,709			5,648
Furniture and fixtures	5			1,108			688
Work in progress (1)	N/A			421			4,281
Total cost				35,802			49,040
Accumulated depreciation				(26,168		)	(40,541		)
				$	9,634		$	8,499

⁽¹⁾ Work in progress includes production tooling construction in progress and, in 2013, internal use software development.

Depreciation expense was as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012
Depreciation expense	$	1,983	$	1,254	$	1,199