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Note 16 - Income Taxes (Details) (USD $) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 30, 2015 | Apr. 30, 2014 | Apr. 30, 2015 | Apr. 30, 2014 | Oct. 31, 2014
Income Tax Disclosure [Abstract] |  |  |  |  |
Income Tax Expense (Benefit) | $ (9,922,000)us-gaap_IncomeTaxExpenseBenefit | $ 604,000 us-gaap_IncomeTaxExpenseBenefit | $ (15,226,000)us-gaap_IncomeTaxExpenseBenefit | $ 1,237,000 us-gaap_IncomeTaxExpenseBenefit |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount |  |  |  |  | (285,100,000)us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Deferred Tax Assets, Valuation Allowance | $ 642,500,000 us-gaap_DeferredTaxAssetsValuationAllowance |  | $ 642,500,000 us-gaap_DeferredTaxAssetsValuationAllowance |  | $ 642,000,000 us-gaap_DeferredTaxAssetsValuationAllowance

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Details
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e32123-109318 + Details
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