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Share-Based Compensation Expense (Details 2) (Stock Options [Member])
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12 Months Ended | |
|---|---|---|
|
Oct. 31, 2010
Y
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Oct. 31, 2009
|
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Stock Options [Member]
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| Weighted average assumptions for option-based awards | ||
| Expected volatility | 61.90% | |
| Risk-free interest rate, minimum | 2.00% | |
| Risk-free interest rate, maximum | 3.00% | |
| Expected term, minimum (years) | 5.3 | |
| Expected term, maximum (years) | 5.5 | |
| Expected dividend yield | 0.00% | |