Inventories (Tables)

12 Months Ended

Dec. 31, 2014

Inventory Disclosure [Abstract]

Summary of Inventory

Inventory is comprised of the following:

	December 31,
	2014		2013
Component parts	$	15,727	$	12,203
Work-in-process and finished goods		18,148		13,450
Total	$	33,875	$	25,653