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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 |  |  |  |  |  |

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