| Stockholders' Equity (Schedule of Assumptions Used In Valuing Stock Options) (Details) | 3 Months Ended | 
|---|---|
| Jan. 31, 2014 | |
| Stock Incentive Plan To Employees And Directors [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Expected life (years) | 3 years 9 months | 
| Expected volatility | 45.00% | 
| Weighted-average volatility | 45.00% | 
| Risk-free interest rate | 0.38% | 
| Dividend yield | 0.00% | 
| Stock Incentive Plan To Non Employees [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Expected volatility | |
| Weighted-average volatility | |
| Risk-free interest rate | |
| Dividend yield | 
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Weighted average expected volatility rate of share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
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