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Inventories (Tables)
12 Months Ended
Dec. 31, 2012
Inventories [Abstract]  
Schedule Of Inventories
                 
   
December 31,
 
   
2012
   
2011
 
Finished goods
  $ 2,462,548     $ 1,976,050  
Production supplies
    2,599,668       2,042,611  
Raw materials
    876,970       935,814  
Total inventories
  $ 5,939,186     $ 4,954,475