Inventory (Tables)

6 Months Ended

Jun. 30, 2012

Inventory

Summary of inventories by major category

	June 30,		December 31,
	2012		2011
Raw materials	$	63,951	$	50,533
Work in process	105,434		115,170
Finished goods	53,809		23,870
Total	$	223,194	$	189,573