Inventories (Tables)

3 Months Ended

Mar. 31, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory

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