Real Estate Assets Fair Value of Acquisition (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2013 Woodland Park [Member]	Sep. 30, 2012 Maples on 97th [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other current assets				$ 201,321	$ 44,534
In-place lease assets				403,216	428,865
Real estate assets	103,148,934	85,488,292		15,258,784	5,071,135
Total assets	534,233,032	413,150,755	297,976,545	15,863,321	5,544,534
Accounts payable, accrued expenses and other liabilities	5,450,694	5,013,947		192,345	69,120
Partners' Capital	203,134,087	181,917,192	131,044,260	15,670,976	5,475,414
Total Liabilities and Partners' Capital	$ 534,233,032	$ 413,150,755		$ 15,863,321	$ 5,544,534