Other Assets Narrative Tagging (Details) (USD $)	3 Months Ended		9 Months Ended						9 Months Ended		3 Months Ended	9 Months Ended									3 Months Ended	12 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 Avistar Portfolio 1 and 2 [Member]	Sep. 30, 2014 Foundation for Affordable Housing [Member]	Dec. 31, 2013 Foundation for Affordable Housing [Member] Unit	Sep. 30, 2014 Vantage at Harlingen [Member] Unit	Sep. 30, 2014 Avistar Portolio-2 [Member]	Sep. 30, 2014 Avistar Portfolio [Member]	Sep. 30, 2013 Cross Creek [Member]	Sep. 30, 2014 Cross Creek [Member]	Dec. 31, 2013 Cross Creek [Member]	Sep. 30, 2014 Ohio Properties [Member]	Dec. 31, 2013 Ohio Properties [Member]	Sep. 30, 2013 Ohio Properties [Member]	Sep. 30, 2014 Ashley Square [Member]	Dec. 31, 2013 Ashley Square [Member]	Sep. 30, 2013 Ashley Square [Member]	Sep. 30, 2014 Iona Lakes [Member]	Dec. 31, 2013 Iona Lakes [Member]	Sep. 30, 2013 Iona Lakes [Member]	Sep. 30, 2014 Series C [Member] Vantage at Harlingen [Member]	Sep. 30, 2014 Series C [Member] Avistar Portolio-2 [Member]	Sep. 30, 2014 Series C [Member] Avistar Portfolio [Member]	Sep. 30, 2013 Series C [Member] Avistar Portfolio [Member]
Loans Payable	$ 15,921,798		$ 15,921,798		$ 15,102,229	$ 526,000	$ 1,591,782	$ 1,617,072		$ 259,171	$ 282,731		$ 3,498,615	$ 3,448,615	$ 2,928,024	$ 2,760,118		$ 1,482,000	$ 1,482,000
Proceeds from Sale of Available-for-sale Securities			35,483,230	21,935,343																	21,900,000	21,900,000
Property loans receivable	22,214,738		22,214,738		21,549,927		1,587,776	1,603,083		251,622	274,496		6,946,087	6,821,087	2,390,447	2,361,447		5,078,342	5,078,342
Number of Units in Real Estate Property								96	288
Debt Instrument, Interest Rate, Stated Percentage								9.00%			12.00%													9.00%	9.00%	9.00%	9.00%
Debt Instrument, Maturity Date											Jun. 26, 2024
Available-for-sale Security, Maturity Date at a point in time									Aug. 01, 2053															Aug. 01, 2053	Sep. 01, 2050	Apr. 01, 2050
Available-for-sale Securities, at Par Value																								1,300,000	831,000	804,000	804,000
Advances to Affiliate													125,000		29,000		44,000			164,000			168,000
Contingent Interest Income	0	0	0	6,497,160																	6,500,000	6,500,000
Realized loss on taxable property loan	0	0	0	(4,557,741)																	4,600,000	4,600,000
Impairment of Intangible Assets (Excluding Goodwill)												$ 168,000