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Note 11 - Mortgages (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Apr. 30, 2022
Apr. 30, 2022
Oct. 31, 2021
JP Morgan Chase Bank [Member]      
Line of Credit Facility, Maximum Borrowing Capacity $ 50,000 $ 50,000  
Warehouse Agreement Borrowings $ 23,900 $ 23,900 $ 45,700
JP Morgan Chase Bank [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]      
Debt Instrument Variable Rate Basis Adjusted Secured Overnight Financing Rate SOFR 0.696% 0.696%  
JP Morgan Chase Bank [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Minimum [Member]      
Debt Instrument, Basis Spread on Variable Rate 2.375% 2.375%  
JP Morgan Chase Bank [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Maximum [Member]      
Debt Instrument, Basis Spread on Variable Rate 2.50% 2.50%  
Customers Bank [Member]      
Line of Credit Facility, Maximum Borrowing Capacity $ 50,000 $ 50,000  
Warehouse Agreement Borrowings $ 34,200 $ 34,200 40,500
Customers Bank [Member] | Bloomberg Short-term Bank Yield Index (BSBY) [Member] | Minimum [Member]      
Debt Instrument, Basis Spread on Variable Rate 2.125% 2.125%  
Customers Bank [Member] | Bloomberg Short-term Bank Yield Index (BSBY) [Member] | Maximum [Member]      
Debt Instrument, Basis Spread on Variable Rate 4.50% 4.50%  
Nonrecourse Mortgages Secured By Inventory [Member] | Mortgages [Member] | Homebuilding [Member]      
Secured Debt, Total $ 196,192 $ 196,192 125,089
Debt Instrument, Collateral Amount $ 574,300 $ 574,300 $ 448,500
Debt, Weighted Average Interest Rate 4.90% 4.90% 4.40%
Comerica Master Repurchase Agreement [Member]      
Line of Credit Facility, Maximum Borrowing Capacity $ 60,000 $ 60,000  
Warehouse Agreement Borrowings 16,400 16,400 $ 48,700
Line of Credit Facility, Maximum Borrowing Capacity Reversion After Initial Period $ 50,000 $ 50,000  
Comerica Master Repurchase Agreement [Member] | Bloomberg Short-term Bank Yield Index (BSBY) [Member]      
Debt Instrument Variable Rate Basis Floor Rate 0.50% 0.50%  
Comerica Master Repurchase Agreement [Member] | Bloomberg Short-term Bank Yield Index (BSBY) [Member] | Minimum [Member]      
Debt Instrument, Basis Spread on Variable Rate 1.875% 1.875%  
Comerica Master Repurchase Agreement [Member] | Bloomberg Short-term Bank Yield Index (BSBY) [Member] | Maximum [Member]      
Debt Instrument, Basis Spread on Variable Rate 3.25% 3.25%