Note 12 - Income Taxes (Details) - Provision for Income Taxes (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2014		Oct. 31, 2013		Oct. 31, 2012
Provision for Income Taxes [Abstract]
Federal									$ (1,690)		$ (9,878)		$ 277
State (1)									2,466	[1]	518	[1]	(35,328)	[1]
Total current income tax expense (benefit):									776		(9,360)		(35,051)
Federal									(272,822)
State									(14,918)
Total deferred income tax (benefit):									(287,740)
Total	$ (286,468)	$ (1,733)	$ 604	$ 633	$ 795	$ 1,922	$ (2,583)	$ (9,494)	$ (286,964)		$ (9,360)		$ (35,051)

[1] The current state income tax (benefit) expense is net of the use of state net operating losses totaling $24.5 million, $23.1 million, and $3.4million for the years ended October 31, 2014, 2013, and 2012, respectively.