Note 8 - Information Concerning Sales To Major Customers (Detail) - Sales to Customers That Exceeded 10 Percent of Total Sales (USD $)	12 Months Ended
Aug. 26, 2012	Aug. 28, 2011	Aug. 29, 2010
Major customers	$ 32,455,953	$ 24,963,235	$ 18,826,498
Customer 1 [Member]
Major customers	20,248,000	16,804,000	11,922,000
Customer 2 [Member]
Major customers	4,829,000	4,525,000	4,480,000
Customer 3 [Member]
Major customers	$ 5,131,000	$ 1,168,000	$ 5,000

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

Name:	us-gaap_SalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration