Dispositions, Assets Held for Sale and Discontinued Operations (Details 1) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues:
Rental income, discontinued	$ 298,000	$ 4,789,000	$ 881,000	$ 11,575,000
Expenses:
Interest expense, discontinued	34,000	1,379,000	157,000	3,275,000
Property operating expenses, discontinued	0	867,000	0	1,731,000
Provision for depreciation, discontinued	0	2,415,000	0	4,849,000
Expenses, discontinued	34,000	4,661,000	157,000	9,855,000
Income (loss) from discontinued operations, net	$ 264,000	$ 128,000	$ 724,000	$ 1,720,000