Investment in Joint Ventures (Components of Income from Discontinued Operations Recognized by Joint Ventures) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Schedule of Equity Method Investments [Line Items]
Total	$ 0	$ 3,397	$ 0	$ 1,354,512
Fund IX-X-XI-REIT Associates
Schedule of Equity Method Investments [Line Items]
Operating Income			0	127,569
Gain on Sale			0	1,226,943
Total	$ 0	$ 3,397	$ 0	$ 1,354,512