Note 14 - Capital Stock (Details Textual) $ / shares in Units, $ in Thousands		12 Months Ended
	Jul. 12, 2005 $ / shares shares	Oct. 31, 2025 USD ($) Item $ / shares shares	Oct. 31, 2024 USD ($) $ / shares shares	Oct. 31, 2023 USD ($) $ / shares shares	Apr. 11, 2025 USD ($)	Sep. 01, 2022 USD ($)	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
Payments of Dividends		$ 10,700	$ 10,700	$ 10,700
Defined Contribution Plan, Employer Discretionary Contribution Amount		10,000	8,800	8,200
Treasury Stock, Value, Acquired, Cost Method		$ 30,244	$ 26,528	$ 4,800
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					$ 30,600	$ 50,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 26,400
Treasury Stock, Shares, Acquired (in shares) | shares		257,908	188,800	118,478
Treasury Stock, Value, Acquired, Cost Method		$ 30,100	$ 26,500	$ 4,800
Shares Acquired, Average Cost Per Share (in dollars per share) | $ / shares		$ 116.7	$ 140.31	$ 40.51
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
Preferred Stock, Depositary Shares, Number of Shares of Preferred Stock in Each Depositary Share (in shares) | shares	0.001