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Note 10 - Mortgages and Notes Payable (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 6 Months Ended
Jun. 30, 2013
Apr. 30, 2017
Oct. 31, 2016
Letter of Credit [Member]      
Letters of Credit Outstanding, Amount   $ 1,700 $ 1,700
Citi Bank [Member] | Revolving Credit Facility [Member]      
Debt Instrument, Term 5 years    
Debt Instrument Basis Spread on Variable Rate Number of Business Days Prior to First Day of Interest Period Spread Determined   2 days  
Long-term Line of Credit   $ 52,000 52,000
Letters of Credit Outstanding, Amount   15,400 17,900
Line of Credit Facility, Maximum Borrowing Capacity $ 75,000    
JP Morgan Chase Bank [Member]      
Warehouse Agreement Borrowings   27,800 44,100
Line of Credit Facility, Maximum Borrowing Capacity   $ 50,000  
JP Morgan Chase Bank [Member] | London Interbank Offered Rate (LIBOR) [Member]      
Debt Instrument Variable Rate Basis Adjusted London Interbank Offered Rate LIBOR   1.00%  
JP Morgan Chase Bank [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]      
Debt Instrument, Basis Spread on Variable Rate   2.50%  
JP Morgan Chase Bank [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]      
Debt Instrument, Basis Spread on Variable Rate   2.63%  
Customers Bank [Member]      
Warehouse Agreement Borrowings   $ 27,800 38,800
Line of Credit Facility, Maximum Borrowing Capacity   $ 50,000  
Customers Bank [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]      
Debt Instrument, Basis Spread on Variable Rate   2.50%  
Customers Bank [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]      
Debt Instrument, Basis Spread on Variable Rate   5.25%  
Homebuilding [Member]      
Long-term Line of Credit   $ 52,000 52,000 [1]
Nonrecourse Mortgages Secured By Inventory [Member] | Mortgages [Member] | Homebuilding [Member]      
Secured Debt   66,365 82,115
Debt Instrument, Collateral Amount   $ 192,700 $ 201,800
Debt, Weighted Average Interest Rate   5.10% 4.90%
Nonrecourse Mortgages Secured by Operating Properties [Member] | Mortgages [Member] | Corporate, Non-Segment [Member]      
Secured Debt   $ 13,700 $ 14,300
Debt, Weighted Average Interest Rate   8.80% 8.80%
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year   $ 700  
Long-term Debt, Maturities, Repayments of Principal in Year Two   1,400  
Long-term Debt, Maturities, Repayments of Principal in Year Three   1,500  
Long-term Debt, Maturities, Repayments of Principal in Year Four   1,700  
Long-term Debt, Maturities, Repayments of Principal in Year Five   1,800  
Long-term Debt, Maturities, Repayments of Principal after Year Five   6,600  
Nonrecourse Mortgages Secured by Operating Properties [Member] | Mortgages [Member] | Homebuilding [Member]      
Secured Debt   $ 13,675 $ 14,312 [1]
8.0% Senior Notes Due 2019 [Member]      
Debt Instrument, Interest Rate, Stated Percentage   8.00%  
The 7.25% 2020 Notes, 9.125% 2020 Notes, 2018 10.0% Second Lien Notes and Term Loan [Member] | Senior Secured Notes [Member] | Letter of Credit [Member] | Restricted Cash [Member]      
Cash Collateral for Borrowed Securities   $ 1,700 1,700
Credit Suisse Master Repurchase Agreement [Member]      
Warehouse Agreement Borrowings   0 32,900
Line of Credit Facility, Maximum Borrowing Capacity   50,000  
Comerica Master Repurchase Agreement [Member]      
Warehouse Agreement Borrowings   14,500 $ 29,800
Line of Credit Facility, Maximum Borrowing Capacity   $ 50,000  
Comerica Master Repurchase Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member]      
Debt Instrument Variable Rate Basis Floor Rate   0.25%  
Debt Instrument, Basis Spread on Variable Rate   2.50%  
[1] Derived from the audited balance sheet as of October 31, 2016. See notes to condensed consolidated financial statements (unaudited).