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Note 11 - Mortgages (Details Textual) - USD ($)
9 Months Ended
Jun. 06, 2025
Jul. 31, 2025
Oct. 31, 2024
JP Morgan Chase Bank [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity   $ 50,000,000  
Warehouse Agreement Borrowings   $ 9,000,000 $ 7,300,000
JP Morgan Chase Bank [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   2.00%  
JP Morgan Chase Bank [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   2.25%  
Customers Bank [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity   $ 100,000,000  
Warehouse Agreement Borrowings   $ 55,500,000 78,600,000
Customers Bank [Member] | Bloomberg Short-term Bank Yield Index ("BSBY") rate or SOFR | Minimum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   2.125%  
Customers Bank [Member] | Bloomberg Short-term Bank Yield Index ("BSBY") rate or SOFR | Maximum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   4.50%  
Hinsdale Bank & Trust Company, N.A. [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity   $ 50,000,000  
Warehouse Agreement Borrowings   $ 45,500,000 45,500,000
Hinsdale Bank & Trust Company, N.A. [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   1.75%  
Debt Instrument Variable Rate Basis Floor Rate   2.75%  
Plains Capital Bank [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 75,000,000    
Warehouse Agreement Borrowings   $ 0  
Plains Capital Bank [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]      
Debt Instrument [Line Items]      
Debt Instrument Variable Rate Basis Floor Rate 5.50%    
Plains Capital Bank [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate 2.125%    
Plains Capital Bank [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate 9.00%    
Nonrecourse Mortgages Secured By Inventory [Member] | Mortgages [Member] | Home Building [Member]      
Debt Instrument [Line Items]      
Secured Debt   53,500,000 90,700,000
Debt Instrument, Collateral Amount   $ 123,800,000 $ 249,700,000
Debt, Weighted Average Interest Rate   8.10% 8.70%