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Basis of Presentation and Significant Accounting Policies - Comprehensive Income (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |
--- | --- | ---
Oct. 31, 2020 | Oct. 31, 2019 | Oct. 31, 2018 | Nov. 01, 2018
Significant Accounting Policies [Line Items] |  |  |  |
Unrealized Gain (Loss) on Investments |  |  | $ 2,247 |
Retained earnings | $ 89,512 | $ 122,557 |  |
Unrealized and realized net loss on Limoneira shares | $ (8,537) | $ (9,722) |  |
Limoneira |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Limoneira's stock price | $ 13.83 | $ 18.92 | $ 24.65 |
Limoneira |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Unrealized Gain (Loss) on Investments |  |  | $ 1,700 |
Number of securities sold |  | 51,271 |  |
Loss on sale of investments |  | $ 100 |  |
Investment shares held (in shares) | 1,677,299 |  |  |
Unrealized and realized net loss on Limoneira shares | $ (8,500) | $ (9,600) |  |
Limoneira | Cumulative effect adjustment |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Retained earnings |  |  |  | $ 12,100

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