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Inventories (Tables)
3 Months Ended
Mar. 31, 2016
Inventories Tables  
Schedule Of Inventories
   

March 31,

2016

       

December 31,

2015

 
Finished goods   $ 3,191         $ 2,946  
Production supplies     2,168           2,636  
Raw materials     2,932           2,082  
Total inventories   $ 8,291         $ 7,664