Basis of Presentation and Significant Accounting Policies (Details 3) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Income Taxes
Required minimum percentage distribution of ordinary taxable income (excluding net capital gains) to stockholders to qualify as a REIT			90.00%
Required minimum percentage distribution of ordinary taxable income and/or net taxable capital gains to stockholders in order to remain exempt from federal income tax as a REIT			100.00%
Deferred tax liabilities	$ 2,284,000		$ 2,284,000		$ 2,629,000
Deferred tax assets, net of related valuation allowances	500,000		500,000		300,000
Percentage of likelihood of realization that the tax position must exceed in order for the amount to be recognized			50.00%
Provision (Benefit) for income taxes, including amounts recognized in discontinued operations, related to certain state and local income	(500,000)	(300,000)		200,000
Maximum
Income Taxes
Provision (Benefit) for income taxes, including amounts recognized in discontinued operations, related to certain state and local income			$ (100,000)