Condensed Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Leasing costs, less accumulated amortization	$ 1,638,565	$ 1,444,673
Mortgage refinancing costs, less accumulated amortization	2,097,944	1,825,231
Participation units, outstanding	700	700
Amount of participation unit	$ 10,000	$ 10,000