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Note 12 - Reduction of Inventory to Fair Value (Details Textual)
$ in Millions
12 Months Ended
Oct. 31, 2022
USD ($)
Oct. 31, 2021
USD ($)
Oct. 31, 2020
USD ($)
Number of Communities Evaluated for Impairment 374 374 354
Number of Communities Performed Detailed Impairment Calculations 1 3 3
Impairment of Real Estate $ 8.4 $ 2.0 $ 2.0
Land Option Write Offs 5.7 1.6 6.8
Homebuilding [Member]      
Carrying Value of Communities Tested for Impairment 10.6 11.5 5.4
Impairment of Real Estate $ 8.4 $ 2.0 $ 2.0
Number of Communities Impaired 1 3 2
Number of Communities Tested for Impairment for Which Undiscounted Future Cash Flow that Did Not Exceed Carrying Amount By Less Than 20 Percent     1
Carrying Value of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount by Less than 20 Percent     $ 0.6
Percentage Undiscounted Cash Flow Exceeds Carrying Amount     20.00%
Land Option Write Offs $ 5.7 $ 1.6 $ 6.8
Homebuilding [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]      
Inventory, Measurement Input   17.3 17.3
Homebuilding [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]      
Inventory, Measurement Input   19.3 19.3