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PRINCIPAL ACCOUNTING POLICIES (Details 5)
0 Months Ended 12 Months Ended
Dec. 31, 2012
USD ($)
Dec. 31, 2012
CNY
Dec. 31, 2011
CNY
May 01, 2012
Starway Hong Kong
CNY
May 01, 2012
Starway Hong Kong
Hanting
USD ($)
May 01, 2012
Starway Hong Kong
Hanting
CNY
Dec. 31, 2012
Starway Hong Kong
Hanting
CNY
Investment transaction disclosures              
Equity sold (as a percent)         51.00% 51.00% 51.00%
Consideration received on sale of noncontrolling interest         $ 2,700,000 17,100,000 17,131,759
Company's noncontrolling interest (as a percent)       49.00%      
Noncontrolling interest in Starway $ 15,288,284 95,247,538 102,770,969 16,500,000