| 
           Operating and Reporting Segments (Details 1) (USD $) 
        In Thousands, unless otherwise specified  | 
        3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
| 
           Sep. 30, 2013 
         | 
        
           Sep. 30, 2012 
         | 
        
           Sep. 30, 2013 
         | 
        
           Sep. 30, 2012 
         | 
      |
| Segment Reporting Information [Line Items] | ||||
| Land Sales | $ 8,933 | $ 7,763 | $ 28,568 | $ 8,846 | 
| 
           West [Member] 
         | 
        ||||
| Segment Reporting Information [Line Items] | ||||
| Land Sales | 5,875 | 6,488 | 11,616 | 6,488 | 
| 
           Central [Member] 
         | 
        ||||
| Segment Reporting Information [Line Items] | ||||
| Land Sales | 3,058 | 485 | 13,482 | 1,568 | 
| 
           East [Member] 
         | 
        ||||
| Segment Reporting Information [Line Items] | ||||
| Land Sales | $ 0 | $ 790 | $ 3,470 | $ 790 |