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Note 7 - Commitments and Contingent Liabilities (Details Textual) $ in Millions | 3 Months Ended
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Jan. 31, 2024 USD ($)
Great Notch Condominium Claims[Member] |
Loss Contingencies [Line Items] |
Loss Contingency, Damages Sought, Value | $ 119.5
Spill Fund Lawsuit [Member] |
Loss Contingencies [Line Items] |
Loss Contingency, Damages Sought, Value | $ 5.3

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