Inventory (Tables)

9 Months Ended

Sep. 30, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory

Inventory consisted of the following at:

	December 31,				September 30, 2013
	2011		2012
	(In thousands)
					(Unaudited)
Raw materials	$	1,568	$	2,120	$	1,608
Work in process		889		962		1,824
Finished goods		1,039		2,298		2,284
	$	3,496	$	5,380	$	5,716