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Note 4 - Reduction of Inventory to Fair Value (Details Textual)
$ in Thousands
 3 Months Ended 6 Months Ended
Apr. 30, 2022
USD ($)
Apr. 30, 2021
USD ($)
Apr. 30, 2022
USD ($)
Apr. 30, 2021
USD ($)
Oct. 31, 2021
USD ($)
Number of Communities Evaluated for Impairment     392 362  
Impairment of Real Estate $ 0 $ 0 $ 0 $ 800  
Homebuilding [Member]          
Number of Communities Evaluated for Impairment     392    
Impairment of Real Estate     $ 0 $ 800  
Number of Communities Performed Detailed Impairment Calculations       1  
Carrying Value of Communities Tested for Impairment       $ 2,300  
Land Option Write Offs $ 600 $ 100 $ 700 $ 1,200  
Number of Walk Away Lots 713 149 1,133 569  
Number of Previously Mothballed Community Re-activated 1   1    
Number of Communities Mothballed 5   5   6
Inventory Real Estate Mothballed Communities $ 1,700   $ 1,700   $ 4,300
Inventory Real Estate Mothballed Communities Accumulated Impairment Charges 27,500   27,500   57,500
Liabilities from Inventory Real Estate Not Owned 123,793   123,793   62,762
Homebuilding [Member] | Model Sale Leaseback Financing Arrangements [Member]          
Inventory Real Estate, Other Options 46,500   46,500   32,500
Liabilities from Inventory Real Estate Not Owned 49,300   49,300   31,500
Homebuilding [Member] | Land Banking Arrangement [Member]          
Inventory Real Estate, Other Options 152,700   152,700   66,200
Liabilities from Inventory Real Estate Not Owned $ 74,500   $ 74,500   $ 31,300
Homebuilding [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]          
Inventory, Measurement Input       0.193