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Inventories (Tables)
 12 Months Ended
Dec. 31, 2013
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current
Inventories consist of the following:
(in thousands)
 
2013
 
2012
Inventory work-in-process, January 1
$
453

 
$
897

Production
—

 
579

Spoilage
(453
)
 
(1,023
)
Inventory work-in-process, December 31
$
—

 
$
453