Note 8 - Information Concerning Sales To Major Customers (Details) - Sales to Customers That Exceeded 10 Percent of Total Sales (USD $)	12 Months Ended
	Aug. 25, 2013	Aug. 26, 2012	Aug. 28, 2011
Revenue, Major Customer [Line Items]
Major customers	$ 33,965,272	$ 32,455,953	$ 24,963,235
Customer 1 [Member]
Revenue, Major Customer [Line Items]
Major customers	23,695,000	20,248,000	16,804,000
Customer 2 [Member]
Revenue, Major Customer [Line Items]
Major customers	3,033,000	4,829,000	4,525,000
Customer 3 [Member]
Revenue, Major Customer [Line Items]
Major customers	$ 3,583,000	$ 5,131,000	$ 1,168,000