Condensed Statements of Cash Flows (USD $)	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net income	$ 2,697,158	$ 3,580,877
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of building and tenant improvements	1,289,581	1,112,272
Amortization of leasing costs	186,150	142,985
Amortization of mortgage refinancing costs	237,783	237,783
Changes in operating assets and liabilities:
Other receivable and Due from Lessee	(3,637,489)	(4,424,412)
Leasing costs paid		(159,949)
Change in prepaid insurance	(10,144)
Change in due to Supervisor, a related party	88,641
Change in accrued mortgage interest	(4,916)	(3,529)
Change in accrued supervisory fees, a related party	(20,000)	253,745
Change in accrued expenses	(44,361)	(66,481)
Net cash provided by operating activities	782,403	673,290
Cash flows from investing activities:
Purchase of building and tenant improvements		(2,931,285)
Increase in payable to Lessee, a related party	16,984	3,091,234
Net cash provided by investing activities	16,984	159,949
Cash flows from financing activities:
Repayment of mortgages payable	(770,788)	(729,331)
Deferred costs	(544,239)	(297,604)
Distributions to Participants	(540,000)	(540,000)
Net cash used in financing activities	(1,855,027)	(1,566,935)
Net decrease in cash and cash equivalents	(1,055,640)	(733,696)
Cash and cash equivalents, beginning of period	2,325,024	1,513,152
Cash and cash equivalents, end of period	1,269,384	779,456
Supplemental disclosure of cash flow information:
Cash paid for interest	1,808,983	1,703,342
Net cash used in financing activities excluded an increase in due to Supervisor	80,632
Net cash used in investing activities excluded the increase of payable to Lessee	$ 4,982,037

Name:	us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

This element represents the amortization of deferred leasing fees incurred by the lessor and amortized over the term of the lease. Such fees represent (a) costs to originate a lease incurred in transactions with independent third parties that (i) result directly from and are essential to acquire that lease and (ii) would not have been incurred had that leasing transaction not occurred and (b) certain costs directly related to specified activities performed by the lessor for that lease. Those activities are: evaluating the prospective lessee's financial condition; evaluating and recording guarantees, collateral, and other security arrangements; negotiating lease terms; preparing and processing lease documents; and closing the transaction.