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Note 11 - Mortgages (Details Textual) - USD ($)
$ in Millions
3 Months Ended
Jan. 31, 2025
Oct. 31, 2024
JP Morgan Chase Bank [Member]    
Debt Instrument [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity $ 50.0  
Warehouse Agreement Borrowings $ 0.0 $ 7.3
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]    
Warehouse Agreement Borrowings $ 52.1 78.6
Line of Credit Facility, Maximum Borrowing Capacity Reversion After Initial Period $ 100.0  
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 $ 50.0  
Warehouse Agreement Borrowings $ 46.5 45.5
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%  
Nonrecourse Mortgages Secured By Inventory [Member] | Mortgages [Member] | Home Building [Member]    
Debt Instrument [Line Items]    
Secured Debt $ 87.6 90.7
Debt Instrument, Collateral Amount $ 219.4 $ 249.7
Debt, Weighted Average Interest Rate 8.20% 8.70%