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Note 11 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2017	Oct. 31, 2016	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Income Tax Expense (Benefit)	$ 464	$ 287,036	$ (1,017)	$ 466	$ 9,852	$ 1,567	$ (9,143)	$ 2,979		$ 286,949	$ 5,255	$ (5,665)
Deferred Tax Assets, Valuation Allowance	918,203				627,943					918,203	627,943
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	12,305	(50,173)	(7,699)	323	32,141	1,093	(17,604)	(13,194)		(45,244)	2,436	(21,765)
Gain (Loss) on Extinguishment of Debt		$ (42,258)	$ (242)	$ 7,646	3,200					(34,854)	$ (3,200)
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Refunds on Previous Taxes Paid, Percent											(114.80%)
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	300				300					300	$ 300
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense										(45)	(2)	(91)
Unrecognized Tax Benefits, Period Increase (Decrease)										(200)
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	1,100				$ 1,100					$ 1,100	1,100
Scenario, Forecast [Member]
Increase in Interest Incurred Per Year, Amount									$ 23,400
Earliest Tax Year [Member]
Open Tax Year										2013
Latest Tax Year [Member]
Open Tax Year										2016
Domestic Tax Authority [Member]
Operating Income (Loss)										$ 0	(4,400)	(3,700)
Income Tax Expense (Benefit)										275,688	2,798	(9,958)
Operating Loss Carryforwards	1,600,000									1,600,000
State and Local Jurisdiction [Member]
Operating Income (Loss)										(18,200)	(16,400)	(12,300)
Income Tax Expense (Benefit)										11,261	$ 2,457	$ 4,293
Operating Loss Carryforwards	2,300,000									2,300,000
Deferred Tax Assets, Valuation Allowance	918,200									918,200
State and Local Jurisdiction [Member] | Between 2018 and 2022 [Member]
Operating Loss Carryforwards	247,100									247,100
State and Local Jurisdiction [Member] | Between 2023 and 2027 [Member]
Operating Loss Carryforwards	463,100									463,100
State and Local Jurisdiction [Member] | Between 2028 and 2032 [Member]
Operating Loss Carryforwards	1,200,000									1,200,000
State and Local Jurisdiction [Member] | Between 2033 and 2037 [Member]
Operating Loss Carryforwards	$ 348,600									$ 348,600

X

- Definition

Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense related a federal specified liability loss refund.

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