Schedule III - Real Estate and Accumulated Depreciation II (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Real Estate and Accumulated Depreciation [Line Items]
Restaurants, Beginning Balance	$ 2,526,560	$ 2,526,560	$ 2,526,560
Restaurants, Additions
Restaurants, Retirements
Restaurants, Ending Balance	2,526,560	2,526,560	2,526,560
Accumulated Depreciation Beginning Balance	1,171,070	1,134,218	1,096,753
Accumulated Depreciation Additions	36,852	36,852	37,465
Accumulated Depreciation Retirements
Accumulated Depreciation Ending Balance	$ 1,207,922	$ 1,171,070	$ 1,134,218