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Note 16 - Common Stock (Details) (USD $)
In Millions, except Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Apr. 30, 2014
Jan. 31, 2014
Apr. 30, 2014
Jul. 03, 2001
Note 16 - Common Stock (Details) [Line Items]        
Common Stock Dividends, Percent of Increase from Class A to Class B   110.00%    
Shareholder Ownership, Percentage of Increase   50.00%    
Common Class A [Member]
       
Note 16 - Common Stock (Details) [Line Items]        
Common Stock Voting Rights Votes Per Share Number   1    
Shareholder Ownership Percentage   4.90%    
Number of Rights   1    
Shareholder, Percent of Stock Acquired   4.90%    
Shareholders, Pre-existing Ownership Percentage   5.00%    
Shareholders, Current Ownership Percentage   5.00%    
Shareholders Ownership Percentage on Transfers   5.00%    
Shareholders, Ownership Percentage Threshold   5.00%    
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in Shares)       4,000,000
Stock Repurchased During Period, Shares (in Shares) 0   0  
Stock Repurchase Program, Remaining Authorized Repurchase Amount (in Dollars)     $ 0.5  
Common Class B [Member]
       
Note 16 - Common Stock (Details) [Line Items]        
Common Stock Voting Rights Votes Per Share Number   10    
Minimum [Member]
       
Note 16 - Common Stock (Details) [Line Items]        
Shareholder Ownership Percentage   5.00%