Note 1 - Nature of Operations and Significant Accounting Policies (Details) - Previously Reported Accounting Errors in Statement of Operations (USD $)	3 Months Ended												4 Months Ended				12 Months Ended
	May 07, 2014		Feb. 12, 2014		Nov. 20, 2013		May 08, 2013		Feb. 13, 2013		Nov. 21, 2012		Aug. 27, 2014		Aug. 28, 2013		Aug. 27, 2014	Aug. 28, 2013	Aug. 29, 2012
Restaurant sales	$ 90,141,000	[1]	$ 83,045,000	[1]	$ 80,064,000	[1]	$ 89,671,000	[1]	$ 80,858,000	[1]	$ 74,091,000	[1]	$ 115,549,000	[1]	$ 115,947,000	[1]	$ 368,267,000	$ 360,001,000	$ 324,536,000
Cost of food																	106,284,000	103,070,000	90,416,000
Payroll and related costs																	127,792,000	123,864,000	112,279,000
Other operating expenses																	68,820,000	64,918,000	54,007,000
Occupancy costs																	21,060,000	21,012,000	18,097,000
General and administrative expenses																	35,038,000	32,217,000	30,808,000
Provision for income taxes																	(1,660,000)	1,775,000	1,654,000
Income from continuing operations	1,742,000	[1],[2]	(1,581,000)	[1],[2]	(693,000)	[1],[2]	2,624,000	[1],[2]	663,000	[1],[2]	174,000	[1],[2]	(1,081,000)	[1],[2]	1,086,000	[1],[2]	(1,613,000)	4,547,000	7,398,000
Accounting Error [Member] | Scenario, Previously Reported [Member]
Restaurant sales																		366,155,000	324,536,000
Cost of food																		104,993,000	90,416,000
Payroll and related costs																		126,306,000	110,161,000
Other operating expenses																		66,382,000	74,084,000
Occupancy costs																		21,537,000
General and administrative expenses																		32,121,000	30,678,000
Provision for income taxes																		1,839,000	1,706,000
Income from continuing operations																		4,222,000	7,558,000
Accounting Error [Member] | Scenario, Reclassifications [Member]
Restaurant sales																		(6,154,000)
Cost of food																		(1,923,000)
Payroll and related costs																		(2,500,000)	2,095,000
Other operating expenses																		(1,497,000)	(20,078,000)
Occupancy costs																		(525,000)	18,097,000
General and administrative expenses																		3,000
Income from continuing operations																		445,000	(58,000)
Accounting Error [Member] | Scenario, Adjustment [Member]
Payroll and related costs																		58,000	23,000
Other operating expenses																		33,000	1,000
General and administrative expenses																		93,000	130,000
Provision for income taxes																		(64,000)	(52,000)
Income from continuing operations																		$ (120,000)	$ (102,000)

[1] In the second quarter of fiscal 2014, we identified and corrected immaterial accounting errors in prepaid assets and payroll related liabilities. The Company did not expense amounts related to these accounts properly in the appropriate prior periods. The errors impacted all prior reporting periods beginning in 2007. Based on management's analysis of the error as required by guidance in ASC 250-10 relating to SEC Staff Accounting Bulletin ("SAB") Topic1.M, Assessing Materiality and SAB Topic 1.N, Considering the Effects of Prior Year Misstatements when Quantifying Misstatements in Current Year Financial Statements, Income from continuing operations for quarter one of fiscal year 2014 and quarters one through four of fiscal year 2013 have been revised. See Note 1. Nature of Operations and Significant Accounting Policies. In addition, Restaurant sales, Income from continuing operations and Discontinued operations were revised to reflect the Company's disposal plans discussed in Note 8.

[2] The first quarter encompasses the typical start of school and second quarter includes Christmas and Thanksgiving holidays.