Inventories (Tables)

3 Months Ended

Mar. 31, 2014

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories consist of the following:

	March 31, 2014		December 31, 2013
	(in thousands)
Raw materials	$	3,730	$	3,647
Work-in-process		2,492		2,949
Finished products		7,964		6,659
Total inventory	$	14,186	$	13,255