REPURCHASE OF ORDINARY SHARES (Details) (ADS)
12 Months Ended
Dec. 31, 2011
2011 Share Repurchase Plan
CNY
Dec. 31, 2012
2012 Share Repurchase Plan
USD ($)
Dec. 31, 2012
2012 Share Repurchase Plan
CNY
Repurchase of ordinary shares      
Number of shares repurchased 1,641,311 319,827 319,827
Shares repurchased, value 63,631,000 $ 1,520,000 9,470,000