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Consolidated Statements of Comprehensive (Loss) Income (Parenthetical) (USD $)
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12 Months Ended | ||
|---|---|---|---|
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Nov. 30, 2011
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Nov. 30, 2010
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Nov. 30, 2009
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| Consolidated Statements of Comprehensive (Loss) Income [Abstract] | |||
| Unrealized holding gain (loss),net of deferred tax (expense) benefit | $ 52,666 | $ (14,972) | $ 39,900 |