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SUBSEQUENT EVENTS (Details) (USD $) | 0 Months Ended | 12 Months Ended | 0 Months Ended | 1 Months Ended | 0 Months Ended
--- | --- | --- | --- | --- | ---
Jul. 26, 2010 | Feb. 28, 2013 | Feb. 29, 2012 | Feb. 28, 2011 | Mar. 02, 2013 Subsequent events | Jun. 30, 2013 Subsequent events Century Mingde | Mar. 02, 2013 Subsequent events Minimum | Mar. 02, 2013 Subsequent events Maximum
Subsequent events |  |  |  |  |  |  |  |
Number of nonvested shares granted | 5,419,500 | 6,845,800 | 586,100 | 5,419,500 | 564,000 |  |  |
Vesting period of nonvested shares |  |  |  |  |  |  | 1 year | 10 years
Fair value per non-vested share granted (in dollars per share) | $ 4.05 | $ 5.56 | $ 5.40 | $ 4.05 | $ 4.46 |  |  |
Portion of the total purchase price received in the process of redemption of the investmentPortion of the total purchase price received in the process of redemption of the investment |  |  |  |  |  | $ 809,000 |  |

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