Transactions with General Partner and Its Affiliates (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Amounts paid and/or accrued to the General Partner and its affiliates
Management fees	$ 63,420	$ 61,352	$ 125,504	$ 122,041
Restoration fees		124	40
Restoration fees (Note 6)	0	124	40	249
General Partner [Member]
Amounts paid and/or accrued to the General Partner and its affiliates
Management fees	63,420	61,352	125,504	122,041
Restoration fees	0	124	40	249
Overhead allowance	5,115	4,959	10,126	9,864
Restoration fees (Note 6)	4,400	0	6,200	0
Lease Commissions	0	5,346	0	5,346
Reimbursement for out-of-pocket expenses	2,033	1,682	3,868	3,019
Cash distribution	227	459	444	712
Total general partner	$ 75,195	$ 73,922	$ 146,182	$ 141,231