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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 5) (USD $) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2011 | Feb. 29, 2012 | Feb. 28, 2011 | Feb. 29, 2008 D | Sep. 15, 2011
Auction rate securities |  |  |  |  |
Cumulative pre-tax unrealized losses on investment, tax effect |  |  | $ (460,000) |  |
Auction rate securities |  |  |  |  |
Auction rate securities |  |  |  |  |
AAA rated and similar investments maximum holding period (in days) |  |  |  | 35 |
Investment classified as non-current assets held for sale |  |  | 20,711,000 |  |
Cumulative pre-tax unrealized losses on investment |  |  | 1,340,000 |  |
Cumulative pre-tax unrealized losses on investment, tax effect |  |  | (460,000) |  |
Par value of investments |  |  |  |  | 18,800,000
Sale price of securities as a percentage of par value | 96.00% |  |  |  |
Total selling price, per agreement | 18,050,000 |  |  |  |
Value of securities liquidated at par |  | $ 3,250,000 | $ 350,000 |  |

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