Note 8 - Information Concerning Sales To Major Customers (Details) - Sales to Customers That Exceeded 10 Percent of Total Sales (USD $)	12 Months Ended
	Aug. 31, 2014	Aug. 25, 2013	Aug. 26, 2012
Revenue, Major Customer [Line Items]
Sales revenue	$ 42,714,240	$ 33,965,272	$ 32,455,953
Customer 1 [Member]
Revenue, Major Customer [Line Items]
Sales revenue	34,244,000	23,695,000	20,248,000
Customer 2 [Member]
Revenue, Major Customer [Line Items]
Sales revenue	1,772,000	3,033,000	4,829,000
Customer 3 [Member]
Revenue, Major Customer [Line Items]
Sales revenue	$ 2,395,000	$ 3,583,000	$ 5,131,000