Income Taxes (Detail) - Federal Tax Partners' Capital (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Partners' Capital for Financial Reporting Purposes	$ 15,659,056	$ 16,174,770
Adjusted Tax Basis of Investments in Real Estate Over Net Investments in Real Estate for Financial Reporting Purposes	938,887	790,269
Income Accrued for Tax Purposes Over Income for Financial Reporting Purposes	12,120	21,888
Syndication Costs Treated as Reduction of Capital For Financial Reporting Purposes	3,208,043	3,208,043
Partners' Capital for Tax Reporting Purposes	$ 19,818,106	$ 20,194,970

This element represents movements included in the statement of changes in partners' capital which are not separately disclosed or provided for elsewhere in the taxonomy.

No definition available.

Name:	us-gaap_PartnersCapitalOther
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration