Real Estate Assets Business Combination, Proforma Income Statement (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net income (loss) allocated to unitholders									$ 5,278,378	$ (1,106,742)	$ 2,037,368
Unitholders' interest in net income (loss) per unit (basic and diluted)	$ 0.04	$ 0.06	$ 0.01	$ 0.03	$ (0.10)	$ 0.01	$ 0	$ 0.05	$ 0.14	$ (0.04)	$ 0.07
Eagle Village [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Revenues										945,000
Net Income (loss)										257,000
Business Acquisition, Effective Date of Acquisition							Jun. 29, 2011
Eagle Village, Arboretum and Maples on 97th [Member] [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Revenues									26,470,566	0	0
Net Income (loss)									4,549,630	24,759,074	21,984,713
Net income (loss) allocated to unitholders									5,380,136	(2,085,080)	125,595
Unitholders' interest in net income (loss) per unit (basic and diluted)									$ 0.14	$ (948,673)	$ 2,562,668
Arboretum [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Revenues										1,800,000
Net Income (loss)										695,000
Business Acquisition, Effective Date of Acquisition								Mar. 31, 2011
Maples on 97th [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Revenues									604,000
Net Income (loss)									$ 235,000
Business Acquisition, Effective Date of Acquisition		Aug. 29, 2012