Real Estate Assets Variable Interest Entities (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Depreciation	$ 5,171,703	$ 4,029,711	$ 3,135,155
Land and land improvements	11,081,992	11,202,876
Buildings and improvements	111,195,695	93,615,479
Carrying Value	122,277,687	104,818,355
VIE Property, Plant and Equipment, Gross	22,778,839	42,243,195
Accumulated Depreciation - VIES	(9,741,942)	(13,871,102)
VIE Property Property, Plant and Equipment, Net	13,036,897	28,372,093
Bent Tree [Member]
Property, Plant and Equipment [Line Items]
Number of Units	232	232
Land and land improvements	986,000	986,000
Buildings and improvements	12,097,419	11,877,333
Carrying Value	13,083,419	12,863,333
Fairmont Oaks [Member]
Property, Plant and Equipment [Line Items]
Number of Units	178	178
Land and land improvements	850,400	850,400
Buildings and improvements	8,845,020	8,713,038
Carrying Value	9,695,420	9,563,438
Lake Forest [Member]
Property, Plant and Equipment [Line Items]
Number of Units		240
Land and land improvements		1,413,644
Buildings and improvements		11,336,010
Carrying Value		12,749,654
Maples on 97th [Member]
Property, Plant and Equipment [Line Items]
Number of Units		258
Land and land improvements		1,154,425
Buildings and improvements		5,912,345
Carrying Value		$ 7,066,770