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Loan Agreement (Details)
9 Months Ended
Sep. 30, 2012
USD ($)
Aug. 31, 2012
USD ($)
Aug. 31, 2012
CNY
Loan Agreement [Abstract]      
Debt instrument, face amount   $ 2,000,000 12,500,000
Letter of credit pledged as collateral 2,300,000    
Restricted cash $ 2,300,000    
Debt instrument, interest rate 7.50%    
Debt instrument, maturity date Aug. 29, 2013