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Inventories (Tables)
12 Months Ended
Dec. 31, 2015
Inventories Tables  
Schedule Of Inventories
    December 31,  
    2015     2014  
Finished goods   $ 2,946     $ 2,373  
Production supplies     2,636       2,070  
Raw materials     2,082       1,371  
Total inventories   $ 7,664     $ 5,814