| 
           Operating and Reporting Segments (Details 1) (USD $) 
         | 
        3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
| 
           Jun. 30, 2013 
         | 
        
           Jun. 30, 2012 
         | 
        
           Jun. 30, 2013 
         | 
        
           Jun. 30, 2012 
         | 
      |
| Segment Reporting Information [Line Items] | ||||
| Land Sales | $ 13,910,000 | $ 755,000 | $ 19,635,000 | $ 1,083,000 | 
| 
           West [Member] 
         | 
        ||||
| Segment Reporting Information [Line Items] | ||||
| Land Sales | 100,000 | 0 | 5,741,000 | 0 | 
| 
           Central [Member] 
         | 
        ||||
| Segment Reporting Information [Line Items] | ||||
| Land Sales | 10,340,000 | 755,000 | 10,424,000 | 1,083,000 | 
| 
           East [Member] 
         | 
        ||||
| Segment Reporting Information [Line Items] | ||||
| Land Sales | $ 3,470,000 | $ 0 | $ 3,470,000 | $ 0 |