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Note 8 - Mortgages and Notes Payable (Details) (USD $)
 12 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended 0 Months Ended 0 Months Ended
Oct. 31, 2013
Oct. 31, 2012
Oct. 31, 2013
Homebuilding [Member]
Mortgages [Member]
Nonrecourse Mortgages [Member]
Oct. 31, 2012
Homebuilding [Member]
Mortgages [Member]
Nonrecourse Mortgages [Member]
Oct. 31, 2013
Homebuilding [Member]
Mortgages [Member]
Nonrecourse Mortgages Secured By Operating Properties [Member]
Oct. 31, 2012
Homebuilding [Member]
Mortgages [Member]
Nonrecourse Mortgages Secured By Operating Properties [Member]
Oct. 31, 2013
Homebuilding [Member]
Mortgages [Member]
Oct. 31, 2013
Homebuilding [Member]
Oct. 31, 2012
Homebuilding [Member]
Jun. 30, 2013
Citi Bank [Member]
Revolving Credit Facility [Member]
Oct. 31, 2013
Citi Bank [Member]
Revolving Credit Facility [Member]
Oct. 31, 2013
Citi Bank [Member]
Letter of Credit [Member]
Oct. 31, 2013
JP Morgan Chase Bank [Member]
London Interbank Offered Rate (LIBOR) [Member]
Oct. 31, 2013
JP Morgan Chase Bank [Member]
Oct. 31, 2012
JP Morgan Chase Bank [Member]
May 28, 2013
Customers Bank [Member]
London Interbank Offered Rate (LIBOR) [Member]
Oct. 31, 2013
Customers Bank [Member]
May 28, 2013
Customers Bank [Member]
Oct. 31, 2012
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]
Jun. 20, 2014
Credit Suisse First Boston Mortgage Capital LLC [Member]
Master Repurchase Agreement [Member]
Oct. 31, 2013
Credit Suisse First Boston Mortgage Capital LLC [Member]
Oct. 31, 2012
Credit Suisse First Boston Mortgage Capital LLC [Member]
Oct. 31, 2013
Credit Suisse First Boston Mortgage Capital LLC [Member]
Minimum [Member]
London Interbank Offered Rate (LIBOR) [Member]
Oct. 31, 2013
Credit Suisse First Boston Mortgage Capital LLC [Member]
Maximum [Member]
Oct. 31, 2013
Letter of Credit [Member]
Oct. 31, 2012
Letter of Credit [Member]
Note 8 - Mortgages and Notes Payable (Details) [Line Items]                                                        
Secured Debt     $ 62,903,000 $ 38,302,000 $ 17,733,000 $ 18,775,000                                            
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 5,960,000           63,900,000                                          
Long-term Debt, Maturities, Repayments of Principal in Year Three 263,994,000           1,200,000                                          
Long-term Debt, Maturities, Repayments of Principal in Year Four 126,293,000           1,300,000                                          
Long-term Debt, Maturities, Repayments of Principal in Year Five 69,459,000           1,400,000                                          
Long-term Debt, Maturities, Repayments of Principal in Year Two 86,491,000           1,500,000                                          
Long-term Debt, Maturities, Repayments of Principal after Year Five 992,000,000           11,300,000                                          
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum             4.00%                                          
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum             8.80%                                          
Debt Instrument, Term                   5 years                                    
Line of Credit Facility, Maximum Borrowing Capacity                   75,000,000       50,000,000       37,500,000       50,000,000            
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                                  
Letters of Credit Outstanding, Amount                       25,800,000                             5,100,000 29,500,000
Restricted Cash and Cash Equivalents 31,900,000 64,200,000           10,286,000 41,732,000                                   5,200,000 30,700,000
Debt Instrument Variable Rate Basis Adjusted London Interbank Offered Rate LIBOR                         0.168%                              
Debt Instrument Variable Rate Basis Floor Rate                         1.00%     0.50%                        
Debt Instrument, Basis Spread on Variable Rate                         2.50%             3.00% 5.50%       3.75% 4.00%    
Debt Instrument, Interest Rate at Period End                           3.50%                            
Warehouse Agreement Borrowings                           $ 33,600,000 $ 58,800,000   $ 30,700,000   $ 22,900,000       $ 27,400,000 $ 25,800,000        
Debt Instrument Variable Rate Basis Effective Rate                                             0.48%