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Inventories (Tables)
 3 Months Ended
Mar. 31, 2014
Inventories [Abstract]  
Summary of composition of inventories

 
March 31,
2014
  
December 31,
2013
 
Raw materials
 
$
3,642,178
  
$
3,262,769
 
Finished goods
  
5,423,809
   
4,407,421
 
Inventories, gross
  
9,065,987
   
7,670,190
 
         
Inventory reserves
  
(302,296)
)
  
(302,296
)
         
Inventories, net
 
$
8,763,691
  
$
7,367,894