Inventories (Tables)

9 Months Ended

Sep. 30, 2013

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories consist of the following:

	September 30, 2013		December 31, 2012
	(in thousands)
Raw materials	$	3,223	$	2,471
Work-in-process		2,525		2,084
Finished products		7,334		6,304
Total inventory	$	13,082	$	10,859