Note 2 - Acquisition (Details) (USD $)	3 Months Ended												4 Months Ended				12 Months Ended			0 Months Ended		12 Months Ended	0 Months Ended	12 Months Ended			12 Months Ended		12 Months Ended	1 Months Ended
	May 08, 2013		Feb. 13, 2013		Nov. 21, 2012		May 09, 2012		Feb. 15, 2012		Nov. 23, 2011		Aug. 31, 2013		Aug. 29, 2012		Aug. 28, 2013	Aug. 29, 2012	Aug. 31, 2011	Dec. 06, 2012 allowable period for adjustments to Fair Value (Member)	Dec. 06, 2012 Paradise Restaurant Group, LLC (Member)	Aug. 28, 2013 Cheeseburger in Paradise [Member] License Agreement and Trade Name (Member)	Dec. 06, 2012 Cheeseburger in Paradise [Member]	Aug. 28, 2013 Cheeseburger in Paradise [Member]	Aug. 28, 2013 Acquired Lease portfolio (Member)	Aug. 28, 2013 Property and Equipment (Member)	Aug. 28, 2013 Cheeseburger in Paradise [Member]	Jun. 30, 2011 Franchise [Member]	Aug. 28, 2013 License Agreement and Trade Name (Member)	Aug. 28, 2013 Off-Market Favorable Lease [Member]
Note 2 - Acquisition (Details) [Line Items]
Percent of Membership Units																					100.00%
Business Acquisition, Cost of Acquired Entity, Purchase Price																							$ 10,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities																							2,400,000
General and Administrative Expense																	32,121,000	30,678,000	29,530,000				400,000
Number of Years																				one
Royalty Fee, Percent																								2.50%
Finite-Lived Intangible Asset, Useful Life																						15 years							15 years
Segment Reporting Depreciation And Amortization																	17,000							11,000
Finite-Lived Intangible Asset, Off-market Lease, Favorable, Gross																	2,600,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life																														20 years 109 days
Additional Rent Expense																	88,000
Depreciation																	500,000
Property, Plant and Equipment, Gross															379,377,000		405,585,000	379,377,000								6,400,000
Goodwill															195,000		2,169,000	195,000							2,000,000
Sales Revenue, Services, Net	97,474,000	[1]	87,477,000	[1]	79,453,000	[1]	84,129,000	[1]	79,415,000	[1]	79,325,000	[1]	125,944,000	[1]	107,230,000	[1]	390,350,000	350,097,000	348,748,000					1,800,000
Business Combination, Integration Related Costs																											700,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual																								1,100,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net																												$ 600,000

[1] The quarters ended August 28, 2013 and August 29, 2012 consists of four four-week periods. All other quarters presented represent three four-week periods.