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Note 10 - Mortgages and Notes Payable (Details) (USD $)
 1 Months Ended 6 Months Ended 6 Months Ended 1 Months Ended 6 Months Ended 0 Months Ended
Apr. 30, 2014
Oct. 31, 2013
Apr. 30, 2014
Corporate, Non-Segment [Member]
Mortgages [Member]
Nonrecourse Mortgages [Member]
Apr. 30, 2014
Corporate, Non-Segment [Member]
Mortgages [Member]
Apr. 30, 2014
Homebuilding [Member]
Mortgages [Member]
Nonrecourse Mortgages [Member]
Oct. 31, 2013
Homebuilding [Member]
Mortgages [Member]
Nonrecourse Mortgages [Member]
Apr. 30, 2014
Homebuilding [Member]
Mortgages [Member]
Apr. 30, 2014
Homebuilding [Member]
Oct. 31, 2013
Homebuilding [Member]
Jun. 30, 2013
Citi Bank [Member]
Revolving Credit Facility [Member]
Apr. 30, 2014
Citi Bank [Member]
Revolving Credit Facility [Member]
Apr. 30, 2014
Citi Bank [Member]
Letter of Credit [Member]
Apr. 30, 2014
JP Morgan Chase Bank [Member]
London Interbank Offered Rate (LIBOR) [Member]
Jan. 31, 2014
JP Morgan Chase Bank [Member]
London Interbank Offered Rate (LIBOR) [Member]
Apr. 30, 2014
JP Morgan Chase Bank [Member]
Jan. 31, 2014
JP Morgan Chase Bank [Member]
Oct. 31, 2013
JP Morgan Chase Bank [Member]
May 28, 2013
Customers Bank [Member]
London Interbank Offered Rate (LIBOR) [Member]
Apr. 30, 2014
Customers Bank [Member]
Oct. 31, 2013
Customers Bank [Member]
May 28, 2013
Customers Bank [Member]
May 28, 2013
Customers Bank [Member]
Minimum [Member]
London Interbank Offered Rate (LIBOR) [Member]
May 28, 2013
Customers Bank [Member]
Maximum [Member]
Master Repurchase Agreement [Member]
Mar. 28, 2014
Credit Suisse First Boston Mortgage Capital LLC [Member]
Master Repurchase Agreement [Member]
Apr. 30, 2014
Credit Suisse First Boston Mortgage Capital LLC [Member]
Oct. 31, 2013
Credit Suisse First Boston Mortgage Capital LLC [Member]
Apr. 30, 2014
Credit Suisse First Boston Mortgage Capital LLC [Member]
Minimum [Member]
London Interbank Offered Rate (LIBOR) [Member]
Apr. 30, 2014
Credit Suisse First Boston Mortgage Capital LLC [Member]
Maximum [Member]
Mar. 26, 2014
Comerica Master Repurchase Agreement [Member]
London Interbank Offered Rate (LIBOR) [Member]
Feb. 28, 2014
Comerica Master Repurchase Agreement [Member]
Master Repurchase Agreement [Member]
Apr. 30, 2014
Comerica Master Repurchase Agreement [Member]
Apr. 30, 2014
Letter of Credit [Member]
Oct. 31, 2013
Letter of Credit [Member]
Note 10 - Mortgages and Notes Payable (Details) [Line Items]                                                                  
Secured Debt     $ 17,200,000   $ 92,879,000 $ 62,903,000 [1]                                                      
Debt, Weighted Average Interest Rate       7.00%     5.60%                                                    
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months       500,000                                                          
Long-term Debt, Maturities, Repayments of Principal in Year Two       1,200,000                                                          
Long-term Debt, Maturities, Repayments of Principal in Year Three       1,300,000                                                          
Long-term Debt, Maturities, Repayments of Principal in Year Four       1,400,000                                                          
Long-term Debt, Maturities, Repayments of Principal in Year Five       1,500,000                                                          
Long-term Debt, Maturities, Repayments of Principal after Year Five       11,300,000                                                          
Debt Instrument, Term                   5 years                                              
Line of Credit Facility, Maximum Borrowing Capacity                   75,000,000           50,000,000         37,500,000     50,000,000           35,000,000      
Debt Instrument Basis Spread On Variable Rate Number Of Business Days Prior To First Day Of Interest Period Spread Determined                     2 days                                            
Line of Credit Facility, Amount Outstanding                     0 20,000,000                                          
Letters of Credit Outstanding, Amount                                                               5,100,000 5,100,000
Restricted Cash and Cash Equivalents 28,700,000 31,900,000           11,392,000 10,286,000 [1]                                             5,200,000 5,200,000
Debt Instrument Variable Rate Basis Adjusted London Interbank Offered Rate LIBOR                           0.1505%                                      
Debt Instrument Variable Rate Basis Floor Rate                           0.375%       0.50%                     0.25%        
Debt Instrument, Basis Spread on Variable Rate                         2.875%                 2.75% 5.25%       2.25% 2.75% 2.625%        
Debt Instrument, Interest Rate at Period End                             3.25%                               2.875%    
Warehouse Agreement Borrowings                             $ 11,400,000   $ 33,600,000   $ 9,500,000 $ 30,700,000         $ 10,400,000 $ 27,400,000         $ 4,000,000    
Debt Instrument Variable Rate Basis Effective Rate                                                 0.43%                
[1] Derived from the audited balance sheet as of October 31, 2013.