Inventories (Tables)

12 Months Ended

Dec. 31, 2012

Components of Inventory

Inventories consist of the following:

At December 31,	2011		2012
Raw materials	$	18,315	$	38,511
Work-in-progress		3,455		11,508
Finished goods		4,745		5,619
	$	26,515	$	55,638