EMPLOYEE BENEFITS - Additional Information (Detail)	12 Months Ended
Dec. 31, 2011 USD ($)	Dec. 31, 2011 CNY	Dec. 31, 2010 CNY	Dec. 31, 2009 CNY
Total amounts expensed in operations and comprehensive income for employee benefit	$ 6,763,231	42,567,100	33,346,393	22,890,106

The full-time employees of the Company's subsidiaries and the VIE subsidiary that are incorporated in the PRC are entitled to staff welfare benefits, including medical care, housing subsidies, unemployment insurance and pension benefits. These companies are required to accrue for these benefits based on certain percentages of the employees' salaries in accordance with the relevant regulations, and to make contributions to the state-sponsored pension and medical plans out of the amounts accrued for medical and pension benefits. The Group's PRC subsidiaries and VIE subsidiary have no legal obligation for the benefits beyond the contributions made.

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