Inventory (Tables)

9 Months Ended

Sep. 30, 2013

Inventory

Schedule of inventory

	September 30, 2013		December 31, 2012
	(in thousands)
Raw materials	$	591	$	591
Work-in-process	14,357		7,884
Finished goods	359		278
	15,307		8,753
Inventories—current	359		278
Inventories—non-current	$	14,948	$	8,475