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Note 12 - Reduction of Inventory to Fair Value - Inventory Impairments by Homebuilding Segment (Details)
$ in Millions
12 Months Ended
Oct. 31, 2022
USD ($)
Oct. 31, 2021
USD ($)
Dollar amount of impairment $ 8.4 $ 2.0
Homebuilding [Member]    
Number of communities 1 3
Dollar amount of impairment $ 8.4 $ 2.0
Pre-impairment value [1] $ 10.6 $ 11.5
Homebuilding [Member] | Northeast [Member]    
Number of communities 0 0
Dollar amount of impairment $ 0.0 $ 0.0
Pre-impairment value [1] $ 0.0 $ 0.0
Homebuilding [Member] | Southeast [Member]    
Number of communities 0 2
Dollar amount of impairment $ 0.0 $ 1.2
Pre-impairment value [1] $ 0.0 $ 9.2
Homebuilding [Member] | West [Member]    
Number of communities 1 1
Dollar amount of impairment $ 8.4 $ 0.8
Pre-impairment value [1] $ 10.6 $ 2.3
[1] Represents carrying value, net of prior period impairments, if any, at the time of recording the applicable period's impairments.