Note 4 - Income Taxes (Details) (USD $)	12 Months Ended
	Aug. 25, 2012	Aug. 30, 2014	Aug. 31, 2013
Income Tax Disclosure [Abstract]
Deferred Tax Liabilities, Leasing Arrangements		$ 52,745,000	$ 38,722,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate		800,000	700,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued		100,000
Unrecognized Tax Benefits, Income Tax Penalties Expense	$ 500,000