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2. Inventory (Tables)
6 Months Ended
Jun. 30, 2012
Inventory Tables  
Schedule of Inventory
   

June 30,

2012

   

December 31,

2011

 
Raw materials   $ 440,924     $ 628,366  
Work-in-progress     1,790,590       2,056,771  
Finished goods     733,822       1,296,860  
Total inventory   $ 2,965,336     $ 3,981,997