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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	$ 604,000us-gaap_IncomeTaxExpenseBenefit	$ (15,226,000)us-gaap_IncomeTaxExpenseBenefit	$ 1,237,000us-gaap_IncomeTaxExpenseBenefit
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount					(285,100,000)us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Deferred Tax Assets, Valuation Allowance	$ 642,500,000us-gaap_DeferredTaxAssetsValuationAllowance		$ 642,500,000us-gaap_DeferredTaxAssetsValuationAllowance		$ 642,000,000us-gaap_DeferredTaxAssetsValuationAllowance

X

- 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

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X

- 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

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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

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