Note 8 - Goodwill and Other Intangible Assets (Details) - Goodwill and other intangible assets (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2013	Aug. 25, 2012
Note 8 - Goodwill and Other Intangible Assets (Details) - Goodwill and other intangible assets [Line Items]
Goodwill	$ 14,448	$ 29
Balance	23,326	456
Customer Contracts [Member]
Note 8 - Goodwill and Other Intangible Assets (Details) - Goodwill and other intangible assets [Line Items]
Balance	8,146	402
Weighted average life in years	15 years	11 years 219 days
Other Intangible Assets [Member]
Note 8 - Goodwill and Other Intangible Assets (Details) - Goodwill and other intangible assets [Line Items]
Balance	$ 732	$ 25
Weighted average life in years	5 years	13 years 292 days