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Note 14 - Capital Stock (Details Textual)
$ / shares in Units, $ in Thousands
 12 Months Ended
Jul. 12, 2005
$ / shares
shares
Oct. 31, 2024
USD ($)
Item
$ / shares
shares
Oct. 31, 2023
USD ($)
$ / shares
shares
Oct. 31, 2022
USD ($)
$ / shares
shares
Sep. 01, 2022
USD ($)
Aug. 15, 2018
Jan. 11, 2018
Class of Stock [Line Items]              
Common Stock Dividends Percent of Increase from Class A to Class B   110.00%          
Conversion of Stock From Class B to Class A Conversion Ratio   1          
Shareholder Ownership Percentage of Increase             50.00%
Preferred Stock, Shares Issued, Total (in shares) | shares   5,600 5,600        
Preferred Stock, Depositary Shares, Number of Shares of Preferred Stock in Each Depositary Share (in shares) | shares 0.001            
Payments of Dividends   $ 10,700 $ 10,700 $ 10,700      
Defined Contribution Plan, Employer Discretionary Contribution Amount   8,800 8,200 8,300      
Treasury Stock, Value, Acquired, Cost Method   $ 26,528 $ 4,800 $ 12,222      
Minimum [Member]              
Class of Stock [Line Items]              
Shareholder Ownership Percentage             5.00%
Common Class A [Member]              
Class of Stock [Line Items]              
Common Stock Voting Rights Votes per Share Number | Item   1          
Shareholder Ownership Percentage           4.90%  
Number of Rights             1
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, Authorized Amount         $ 50,000    
Stock Repurchase Program, Remaining Authorized Repurchase Amount   $ 6,500          
Treasury Stock, Shares, Acquired (in shares) | shares   188,800 118,478 312,471      
Treasury Stock, Value, Acquired, Cost Method   $ 26,500 $ 4,800 $ 12,200      
Shares Acquired, Average Cost Per Share (in dollars per share) | $ / shares   $ 140.31 $ 40.51 $ 39.12      
Common Class B [Member]              
Class of Stock [Line Items]              
Common Stock Voting Rights Votes per Share Number | Item   10          
Preferred Class A [Member]              
Class of Stock [Line Items]              
Preferred Stock, Shares Issued, Total (in shares) | shares 5,600            
Preferred Stock, Dividend Rate, Percentage 7.625%            
Preferred Stock, Liquidation Preference Per Share (in dollars per share) | $ / shares $ 25,000