Variable Interest Entities and Joint Ventures (Details 2) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Condensed Balance Sheet Of Consolidated Joint Venture Abstract
Cash	$ 951	$ 358
Restricted cash	852	501
Other assets	125	126
Land under development	21,094	21,386
Total assets	23,022	22,371
Debt	6,535	7,592
Accrued expenses	492	59
Equity	15,995	14,720
Total liabilities and equity	$ 23,022	$ 22,371