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Redeemable Preferred Stock - Redeemable Series B Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 30, 2024 | Oct. 31, 2023
Redeemable Preferred Stock |  |
Temporary equity, carrying amount, attributable to parent | $ 59,857 | $ 59,857
Series B Preferred Stock |  |
Redeemable Preferred Stock |  |
Preferred stock, shares authorized | 105,875 |
Preferred stock, liquidation preference per share | $ 1,000.00 |
Preferred stock, shares issued | 64,020 | 64,020
Preferred stock shares outstanding | 64,020 | 64,020
Temporary equity, carrying amount, attributable to parent | $ 59,900 | $ 59,900
Dividends, preferred stock, cash | $ 1,600 | $ 1,600

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