Condensed Balance Sheets (USD $)	Mar. 31, 2013	Dec. 31, 2012
Real Estate at 250-264 West 57th Street, New York, New York:
Total real estate, net	$ 45,127,585	$ 44,396,866
Cash and cash equivalents	2,524,585	3,320,599
Due from Supervisor, a related party	60,000	60,000
Deferred costs	1,826,684	1,752,344
Other assets	21,758	45,956
Leasing costs, less accumulated amortization of $1,023,673 in 2013 and $996,614 in 2012, respectively	1,916,462	1,400,573
Mortgage financing costs, less accumulated amortization of $1,659,457 in 2013 and $1,580,197 in 2012, respectively	568,363	647,623
Total assets	52,045,437	51,623,961
Liabilities:
Mortgages payable	52,632,871	52,900,635
Accrued mortgage interest	229,738	230,972
Payable to Lessee, a related party	5,259,043	3,322,181
Accrued expenses	3,220	7,470
Due to Supervisor, a related party	221,164	621,233
Total liabilities	58,346,036	57,082,491
Commitments and contingencies
Members' deficiency (at March 31, 2013 and December 31, 2012, there were 720 units (at $5,000 per unit) of participation units outstanding)	(6,300,599)	(5,458,530)
Total liabilities and members' deficiency	52,045,437	51,623,961
Building [Member]
Real Estate at 250-264 West 57th Street, New York, New York:
Real estate	4,940,682	4,940,682
Less: accumulated depreciation	(4,940,682)	(4,940,682)
Total real estate, net
Building improvements [Member]
Real Estate at 250-264 West 57th Street, New York, New York:
Real estate	45,594,307	44,256,841
Less: accumulated depreciation	(7,714,489)	(7,423,289)
Total real estate, net	37,879,818	36,833,552
Tenant improvements [Member]
Real Estate at 250-264 West 57th Street, New York, New York:
Real estate	6,742,350	6,733,105
Less: accumulated depreciation	(1,612,018)	(1,287,226)
Total real estate, net	5,130,332	5,445,879
Land [Member]
Real Estate at 250-264 West 57th Street, New York, New York:
Total real estate, net	$ 2,117,435	$ 2,117,435