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Investments in Joint Ventures (Details) (USD $)
3 Months Ended9 Months Ended3 Months Ended
Sep. 30, 2011
Segment
State
Venture
Loan
Y
M
D
Sep. 30, 2010
Sep. 30, 2011
Y
Score
Segment
State
Venture
Loan
M
D
Sep. 30, 2010
Dec. 31, 2010
Sep. 30, 2011
Segment total
Joint ventures
Lot
Dec. 31, 2010
Segment total
Joint ventures
Lot
Sep. 30, 2011
North
Joint ventures
Lot
Dec. 31, 2010
North
Joint ventures
Lot
Dec. 31, 2010
Texas
Discontinued operations
Joint ventures
Lot
Sep. 30, 2011
Texas
Joint ventures
Lot
Dec. 31, 2010
Texas
Joint ventures
Lot
Sep. 30, 2011
West
Joint ventures
Lot
Dec. 31, 2010
West
Joint ventures
Lot
Jun. 30, 2011
Joint ventures
Investments in Joint Ventures               
Number of active homebuilding joint ventures5 5            
Lots               
JV Lots Owned (in lots)     342370143150 2754172166 
JV Lots Optioned (in lots)     1,3001,209     1,3001,209 
TOTAL (in lots)     1,6421,5791431501427541,4721,375 
Impairment related to a commercial parcel              $ 1,900,000
Unconsolidated Joint Ventures               
Investments in unconsolidated joint ventures10,000,000 10,000,000 13,300,000          
Equity in net earnings (loss) of subsidiaries$ 349,000$ 62,000$ (1,302,000)$ 218,000