Real Estate Assets Fair Value of Acquisition (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012	Jun. 30, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Real estate assets	$ 86,706,789	$ 85,488,292
Total assets	442,046,482	413,150,755
Accounts payable, accrued expenses and other liabilities	5,445,866	5,013,947
Partners' Capital	189,044,982	181,917,192	189,044,982
Total Liabilities and Partners' Capital	442,046,482	413,150,755
Maples on 97th [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other current assets	44,534
In-place lease assets	428,865
Real estate assets	5,071,135
Total assets	5,544,534
Accounts payable, accrued expenses and other liabilities	69,120
Partners' Capital	5,475,414
Total Liabilities and Partners' Capital	$ 5,544,534