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Inventories
12 Months Ended
Dec. 31, 2011
Inventories [Abstract]  
Inventories

5. Inventories

Inventories consist of the following:

 

                 
    December 31,  
    2011     2010  

Finished products

  $ 321,378     $ 80,329  

Work-in-process

    862,000       857,044  

Raw materials

    1,662,186       1,607,827  
   

 

 

   

 

 

 

Net inventories

  $ 2,845,563     $ 2,545,200