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Land Use Rights (Details) (USD $)
3 Months Ended
Mar. 31, 2013
Dec. 31, 2012
Mar. 31, 2013
Minimum [Member]
Mar. 31, 2013
Maximum [Member]
Components of land use rights        
Land use rights, Useful Life     45 years 50 years
Land use rights $ 4,298,395 $ 4,274,916    
Less: accumulated amortization (544,949) (518,574)    
Land use rights, net $ 3,753,446 $ 3,756,342