v2.4.0.6
Estimated Annual Amortization Expense (Detail)
12 Months Ended
Dec. 31, 2011
USD ($)
Dec. 31, 2011
CNY
Expected Amortization Expense [Line Items]    
2012 $ 1,760,367 11,079,577
2013 1,377,716 8,671,209
2014 595,610 3,748,707
2015 294,966 1,856,488
2016 $ 171,627 1,080,202