Inventory (Tables)

6 Months Ended

Jun. 30, 2015

Inventory

Schedule of inventory

	June 30, 2015		December 31, 2014
	(in thousands)
Raw materials	$	289	$	591
Work-in-process	18,259		18,487
Finished goods	1,897		358
	20,445		19,436
Inventories—current	1,897		358
Inventories—non-current	$	18,548	$	19,078