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Inventories (Details) (USD $)
Sep. 30, 2013
Dec. 31, 2012
Sep. 30, 2012
Dec. 31, 2011
Summary of inventories        
Trade goods $ 51,112   $ 83,944  
Advances given for purchases 28,000       
Total $ 51,112 $ 111,461 $ 83,783 $ 55,689