Inventories (Tables)

6 Months Ended

Jun. 30, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory

Inventories consist of the following:	(in thousands)
	June 30,			December 31,
	2013			2012
Inventory work-in-process, January 1	$	453		$	897
Production	5			579
Spoilage	(458		)	(1,023		)
Inventory work-in-process, end of period	$	—		$	453