Quarterly report pursuant to Section 13 or 15(d)

Investments in Unconsolidated Entities (Details Textual)

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Investments in Unconsolidated Entities (Details Textual) (USD $)
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Schedule of Equity Method Investments [Line Items]      
Maximum pro rata exposure under the guarantee $ 13,456,000   $ 13,462,000
Investments in Unconsolidated Entities (Textual) [Abstract]      
Amortization of Equity Method Investment Assets 1,856 0  
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures 10,949,000   12,085,000
Equity method investment difference between carrying amount and underlying equity 755,000   756,000
Equity Method Land Ventures [Member]
      
Schedule of Equity Method Investments [Line Items]      
Number of joint ventures 2    
Mortgage And Title Business Joint Ventures [Member]
      
Schedule of Equity Method Investments [Line Items]      
Investments in mortgage and title joint ventures 1,800,000   2,000,000
Mortgage Joint Ventures [Member]
      
Schedule of Equity Method Investments [Line Items]      
Number of joint ventures 2    
Title Business Joint Ventures [Member]
      
Schedule of Equity Method Investments [Line Items]      
Number of joint ventures 1    
Repayment guarantees [Member]
      
Schedule of Equity Method Investments [Line Items]      
Maximum pro rata exposure under the guarantee 213,000   219,000
Completion Guarantees [Member]
      
Schedule of Equity Method Investments [Line Items]      
Maximum pro rata exposure under the guarantee 0 [1]   0 [1]
South Edge Guarantee [Member]
      
Schedule of Equity Method Investments [Line Items]      
Maximum pro rata exposure under the guarantee $ 13,243,000 [2]   $ 13,243,000 [2]
[1] (1)As our completion guarantees are typically backed by funding from a third party, we do not believe these guarantees represent a potential cash obligation for us, as they require only non-financial performance.
[2] (2)As discussed in Note 13, we dispute the enforceability of this guarantee, and ultimate resolution of this matter will be addressed through litigation and/or settlements.