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Note 10 - Tangible Equity Units (Details) (USD $)
 3 Months Ended 12 Months Ended 33 Months Ended 12 Months Ended
Oct. 31, 2013
Oct. 31, 2012
Jul. 31, 2012
Apr. 30, 2012
Jan. 31, 2012
Oct. 31, 2013
Oct. 31, 2012
Oct. 31, 2011
Oct. 31, 2009
Mar. 15, 2011
Feb. 14, 2011
Feb. 09, 2011
Oct. 31, 2013
Common Class A [Member]
Oct. 31, 2013
Common Class A [Member]
Minimum [Member]
Feb. 09, 2011
Common Class A [Member]
Minimum [Member]
Oct. 31, 2013
Common Class A [Member]
Maximum [Member]
Feb. 09, 2011
Common Class A [Member]
Maximum [Member]
Oct. 31, 2012
Senior Subordinated Amortizing Notes [Member]
The 7.25% Senior Subordinated Amorizing Notes [Member]
Oct. 31, 2013
Senior Subordinated Amortizing Notes [Member]
The 7.25% Senior Subordinated Amorizing Notes [Member]
Apr. 30, 2012
Senior Subordinated Amortizing Notes [Member]
The 7.25% Senior Subordinated Amorizing Notes [Member]
Feb. 09, 2011
Senior Subordinated Amortizing Notes [Member]
The 7.25% Senior Subordinated Amorizing Notes [Member]
Oct. 31, 2013
Senior Subordinated Amortizing Notes [Member]
Oct. 31, 2012
Senior Subordinated Amortizing Notes [Member]
Feb. 09, 2011
Tangible Equity Units [Member]
Oct. 31, 2013
Minimum [Member]
Oct. 31, 2013
Maximum [Member]
Note 10 - Tangible Equity Units (Details) [Line Items]                                                    
Tangible Equity Units, Units Issued (in Shares)                     450,000 3,000,000                            
Debt Instrument, Interest Rate, Stated Percentage                                   7.25% 7.25%   7.25%     7.25%    
Senior Notes                                   $ 6,100,000 $ 2,200,000     $ 2,152,000 $ 6,091,000      
Tangible Equity Units, Cash Installment, Per Note (in Dollars per share)                                     $ 0.453125              
Tangible Equity Units, Stated Amount                       25                            
Tangible Equity Units, Annual Interest Rate                                         12.072%          
Tangible Equity Units, Number of Shares Upon Conversion, Per Unit (in Shares)                           4.7655 4.7655 5.8140 5.8140               4.7655 5.8140
Adjustments To Additional Paid In Capital Issuance Of Prepaid Common Stock Purchase Contracts                                               68,100,000    
Tangible Equity Units, Number Converted                       2,200,000                            
Prepaid Stock Purchase Contracts Shares Settled (in Shares)                         10,400,000                          
Debt Instrument, Repurchased Face Amount (in Dollars)   33,200,000         33,200,000     60,100,000                   3,100,000            
Gains (Losses) on Extinguishment of Debt (in Dollars) $ (760,000) $ (87,033,000) $ 6,230,000 $ 27,039,000 $ 24,698,000 $ (760,000) $ (29,066,000) $ 7,528,000 $ 41,300,000                 $ 200,000