Investments In and Advances to Partnerships - Pending and Completed Sales (Details) (USD $)	0 Months Ended			0 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended		0 Months Ended		12 Months Ended	1 Months Ended
	Jun. 29, 2012 New Sharon Woods [Member]	Dec. 31, 2012 New Sharon Woods [Member]	Dec. 31, 2011 New Sharon Woods [Member]	Aug. 02, 2012 Chestnut Apartments [Member]	Dec. 31, 2012 Chestnut Apartments [Member]	Dec. 31, 2011 Chestnut Apartments [Member]	Aug. 02, 2012 Westwood Village [Member]	Dec. 31, 2012 Westwood Village [Member]	Dec. 31, 2011 Westwood Village [Member]	Aug. 29, 2012 Traverse City elderly, LP [Member]	Dec. 17, 2012 Capitol Senior Limited Dividend Housing Association Limited Partnership [Member]	Dec. 31, 2012 Managing General Partner [Member]	Sep. 30, 2012 Managing General Partner [Member] Traverse City elderly, LP [Member]	Dec. 31, 2012 Managing General Partner [Member] Capitol Senior Limited Dividend Housing Association Limited Partnership [Member]
Schedule of Equity Method Investments [Line Items]
Sale price of investment	$ 1			$ 5,440,000			$ 3,085,000			$ 299,990	$ 6,245,328
Carrying value of investments		0	0		1,171,612	1,024,547		425,415	155,120
Expected sales proceeds					3,500,000			2,100,000
Disposition fee												567,000	92,000	475,000
Net sales proceeds										207,990	5,770,328
Investment basis at the date of sale										0	5,183,461
Net acquisition fees and property purchase costs										7,465	21,575
Net gain recognized										$ 200,525	$ 565,292