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Note 11 - Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Note 11 - Income Taxes (Details) [Line Items]
Income Tax Expense (Benefit)	$ 11,878	$ (2,317)	$ (9,922)	$ (5,304)	$ (286,468)	$ (1,733)	$ 604	$ 633	$ (5,665)	$ (286,964)	$ (9,360)
Deferred Tax Assets, Valuation Allowance	635,305				642,003				635,305	642,003
Operating Loss Carryforwards											1,500,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	300				400				300	400
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense									(91)	(30)	100
Unrecognized Tax Benefits, Period Increase (Decrease)									(200)
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	1,100				$ 1,100				1,100	1,100
Domestic Tax Authority [Member]
Note 11 - Income Taxes (Details) [Line Items]
Operating Income (Loss)									3,700	57,800	0
Operating Loss Carryforwards	1,500,000								1,500,000
State and Local Jurisdiction [Member]
Note 11 - Income Taxes (Details) [Line Items]
Operating Income (Loss)									12,300	24,500	23,100
Income Tax Expense (Benefit)									4,293	$ (12,452)	$ 518
Operating Loss Carryforwards	$ 2,200,000								$ 2,200,000
Earliest Tax Year [Member]
Note 11 - Income Taxes (Details) [Line Items]
Open Tax Year									2011
Latest Tax Year [Member]
Note 11 - Income Taxes (Details) [Line Items]
Open Tax Year									2014

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