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Inventories
12 Months Ended
Dec. 31, 2012
Inventories  
Inventories

(4) Inventories

        The major components of inventories at December 31, 2012 and 2011 were as follows:

 
  2012   2011  

Finished products

  $ 1,554,203   $ 804,049  

Work-in-process

    1,599,761     1,652,708  

Raw materials

    3,191,018     2,023,172  
           

 

  $ 6,344,982   $ 4,479,929