Dispositions, Assets Held for Sale and Discontinued Operations (Details 1) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues:
Rental income, discontinued	$ 0	$ 298,000	$ 0	$ 881,000
Expenses:
Interest expense, discontinued	0	34,000	0	157,000
Property operating expenses, discontinued	0	0	0	0
Provision for depreciation, discontinued	0	0	0	0
Expenses, discontinued	0	34,000	0	157,000
Income (loss) from discontinued operations, net	$ 0	$ 264,000	$ 0	$ 724,000