| 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 |