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Note 4 - Reduction of Inventory to Fair Value (Details Textual) - Homebuilding [Member]
$ in Thousands
 3 Months Ended
Jan. 31, 2021
USD ($)
Jan. 31, 2020
USD ($)
Oct. 31, 2020
USD ($)
Impairment of Real Estate $ 800 $ 0  
Number of Communities Evaluated for Impairment 360 383  
Number of Communities Performed Detailed Impairment Calculations 1 1  
Carrying Value of Communities Tested for Impairment $ 2,300 $ 600  
Land Option Write Offs $ 1,100 $ 2,800  
Number of Walk Away Lots 420 1,285  
Number of Previously Mothballed Communities Sold During the Period 1    
Number of Mothballed Communities Partially Reactivated 1    
Number of Communities Mothballed 11   12
Inventory Real Estate Mothballed Communities $ 9,700   $ 11,400
Inventory Real Estate Mothballed Communities Accumulated Impairment Charges 120,400   122,200
Liabilities from Inventory Real Estate Not Owned 119,432   131,204
Model Sale Leaseback Financing Arrangements [Member]      
Inventory Real Estate, Other Options 46,400   48,800
Liabilities from Inventory Real Estate Not Owned 45,000   47,200
Land Banking Arrangement [Member]      
Inventory Real Estate, Other Options 119,600   133,400
Liabilities from Inventory Real Estate Not Owned $ 74,400   $ 84,000
Measurement Input, Discount Rate [Member]      
Inventory, Measurement Input 0.193