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Note 10 - Mortgages and Notes Payable (Details) (USD $)
 3 Months Ended 1 Months Ended 3 Months Ended 3 Months Ended 1 Months Ended 3 Months Ended
Jan. 31, 2014
Oct. 31, 2013
Jan. 31, 2014
Homebuilding [Member]
Mortgages [Member]
Nonrecourse Mortgages [Member]
Oct. 31, 2013
Homebuilding [Member]
Mortgages [Member]
Nonrecourse Mortgages [Member]
Jan. 31, 2014
Homebuilding [Member]
Mortgages [Member]
Nonrecourse Mortgages Secured By Operating Properties [Member]
Oct. 31, 2013
Homebuilding [Member]
Mortgages [Member]
Nonrecourse Mortgages Secured By Operating Properties [Member]
Jan. 31, 2014
Homebuilding [Member]
Mortgages [Member]
Jan. 31, 2014
Homebuilding [Member]
Oct. 31, 2013
Homebuilding [Member]
Jun. 30, 2013
Citi Bank [Member]
Revolving Credit Facility [Member]
Jan. 31, 2014
Citi Bank [Member]
Revolving Credit Facility [Member]
Jan. 31, 2014
Citi Bank [Member]
Letter of Credit [Member]
Jan. 31, 2014
JP Morgan Chase Bank [Member]
London Interbank Offered Rate (LIBOR) [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]
Jan. 31, 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]
Jan. 02, 2013
Credit Suisse First Boston Mortgage Capital LLC [Member]
Master Repurchase Agreement [Member]
Jan. 31, 2014
Credit Suisse First Boston Mortgage Capital LLC [Member]
Oct. 31, 2013
Credit Suisse First Boston Mortgage Capital LLC [Member]
Jan. 31, 2014
Credit Suisse First Boston Mortgage Capital LLC [Member]
Minimum [Member]
London Interbank Offered Rate (LIBOR) [Member]
Jan. 31, 2014
Credit Suisse First Boston Mortgage Capital LLC [Member]
Maximum [Member]
Jan. 31, 2014
Letter of Credit [Member]
Oct. 31, 2013
Letter of Credit [Member]
Note 10 - Mortgages and Notes Payable (Details) [Line Items]                                                        
Secured Debt     $ 71,190,000 $ 62,903,000 [1] $ 17,462,000 $ 17,733,000 [1]                                            
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months             72,000,000                                          
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, 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 24,200,000                                
Letters of Credit Outstanding, Amount                                                     5,100,000 5,100,000
Restricted Cash and Cash Equivalents 23,900,000 31,900,000           10,689,000 10,286,000 [1]                                   5,100,000 5,200,000
Debt Instrument Variable Rate Basis Adjusted London Interbank Offered Rate LIBOR                         0.1565%                              
Debt Instrument Variable Rate Basis Floor Rate                         0.375%     0.50%                        
Debt Instrument, Basis Spread on Variable Rate                         2.875%             3.00% 5.50%       3.75% 4.00%    
Debt Instrument, Interest Rate at Period End                           3.25%                            
Warehouse Agreement Borrowings                           $ 18,700,000 $ 33,600,000   $ 9,200,000 $ 30,700,000         $ 5,900,000 $ 27,400,000        
Debt Instrument Variable Rate Basis Effective Rate                                             0.45%          
[1] Derived from the audited balance sheet as of October 31, 2013.