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	$ 6,313,276	$ 7,360,925	$ 7,360,925
Restaurants Additions
Restaurants Retirements		(1,047,649)
Restaurants Ending Balance	6,313,276	6,313,276	7,360,925
Accumulated Depreciation Beginning Balance	2,229,215	2,514,714	2,401,977
Accumulated Depreciation Additions	72,412	76,406	112,737
Accumulated Depreciation Retirements		(361,905)
Accumulated Depreciation Ending Balance	$ 2,301,627	$ 2,229,215	$ 2,514,714