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Inventories (Tables)
12 Months Ended
Dec. 31, 2012
Inventories Tables  
Schedule of Inventory

Inventories are stated at the lower of cost (first-in, first-out method) or market (net realizable value) and consisted of the following at December 31, (in thousands):

 

    2012     2011  
Raw materials   $ 3,383     $ 3,908  
Work-in-process     1,600       1,850  
Finished goods     2,272       2,646  
Total inventories, net   $ 7,255     $ 8,404