Note 7 - Impairment of Long-Lived Assets, Discontinued Operations and Property Held for Sale (Details) - Impairment Charges to Income from Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	May 06, 2015	May 07, 2014	May 06, 2015	May 07, 2014
Impairment Charges to Income from Operations [Abstract]
Provision for asset impairments			$ 218	$ 1,539
Net gain on disposition of property and equipment	(609)	(1,023)	(1,696)	(956)
			$ (1,478)	$ 583
Effect on EPS:
Basic (in Dollars per share)			$ 0.05	$ (0.02)
Assuming dilution (in Dollars per share)			$ 0.05	$ (0.02)