Commitments And Contingencies (Details) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Commitments And Contingencies [Abstract]
Total debt of unconsolidated joint ventures and entities	$ 1,100,000	$ 663,000
Share of unconsolidated debt, based on ownership percentage	$ 356,000	$ 221,000