Income Taxes (Details Textuals) (USD $)	3 Months Ended	9 Months Ended
Apr. 30, 2011	Jul. 31, 2011	Jul. 31, 2010	Oct. 31, 2010
Income Taxes (Textuals) [Abstract]
Time period of forward tax losses		20 years
Operating Loss Carryforwards		$ 10,000,000
Income tax refunds	154,300,000	154,524,000	152,744,000
Valuation allowances against our entire net deferred tax assets		359,800,000		364,200,000
Recognized cumulative valuation allowances against state deferred tax assets		$ 45,000,000		$ 45,000,000

Income Taxes Textuals.

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- Definition

Recognized cumulative valuation allowances.

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- Definition

The sum of the portions of deferred tax assets as of the balance sheet date for which, based on the weight of available evidence, it is more likely than not will not be realized through future reductions of tax-based income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 17
-Subparagraph e

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43-49

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- Definition

The sum of domestic, foreign and state and local operating loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 48
-Subparagraph a

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- Definition

The expiration date of each operating loss carryforward included in total operating loss carryforwards, or the applicable range of such expiration dates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 48
-Subparagraph a

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The amount of cash received during the period as refunds for the overpayment of taxes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 29

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