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Inventories
3 Months Ended
Mar. 31, 2015
Inventory Disclosure [Abstract]  
Inventories
Note 4. Inventories

Following is a summary of inventory at March 31, 2015 and December 31, 2014, in thousands:

  

    March 31,     December 31,  
    2015     2014  
Raw materials   $ 7,292     $ 8,465  
Work in progress     4,628       6,126  
Finished goods     3,770       4,800  
Supplies     927       915  
Total Inventories     16,617       20,306  
Inventory reserve     (132 )     (131 )
Net Inventories   $ 16,485     $ 20,175