Note 4 - Income Taxes (Details) - Components of deferred tax assets and liabilities (USD $) In Thousands, unless otherwise specified	Aug. 31, 2013	Aug. 25, 2012
Deferred Tax Assets
Payroll and benefit related	$ 16,524	$ 15,577
Insurance related	13,073	12,928
Environmental	7,133	7,886
Other	11,421	12,588
	48,151	48,979
Deferred Tax Liabilities
Tax in excess of book depreciation	42,512	42,282
Purchased intangible assets	28,632	26,666
Rental merchandise in service	38,722	20,992
	109,866	89,940
Net deferred tax liability	$ 61,715	$ 40,961