Quarterly report pursuant to Section 13 or 15(d)

Inventory (Details)

v2.4.0.8
Inventory (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Inventory [Line Items]    
Inventory, Net, Total $ 3,916 $ 2,053
In Process Inventory [Member]
   
Inventory [Line Items]    
Inventory, Net, Total 1,158 765
Plant Inventory [Member]
   
Inventory [Line Items]    
Inventory, Net, Total 943 1,136
Conversion Facility Inventory [Member]
   
Inventory [Line Items]    
Inventory, Net, Total $ 1,815 $ 152