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Income Taxes (Details Textual) (USD $) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 31, 2013 | Jul. 31, 2012 | Jul. 31, 2013 | Jul. 31, 2012 | Oct. 31, 2012
Income Taxes (Textual) [Abstract] |  |  |  |  |
State taxes net of federal benefit, percentage | 6.40% |  |  |  | 6.50%
Income Tax Reconciliation Decrease in Deferred Tax Assets Valuation Allowance | $ 1,856,000 | $ 27,847,000 | $ 3,133,000 | $ 31,164,000 | $ 394,718,000
Recognized cumulative valuation allowances against state deferred tax assets | $ 53,900,000 |  | $ 53,900,000 |  | $ 57,000,000
Number of states | 19 |  | 19 |  |

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- Definition Cumulative valuation allowance - state. + References No definition available. + Details
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- Definition Estimated state income tax rate. + References No definition available. + Details
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- Details
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- Definition Income tax reconciliation decrease in deferred tax asset valuation allowance. + References No definition available. + Details
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- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
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