Note 7 - Weighted Average Assumptions Used In Calculating the Company's Projected Benefit Obligation (Details)	Aug. 27, 2016	Aug. 29, 2015
Pension Plan [Member]
Discount rate	2.90%	3.80%
Supplemental Executive Retirement Plan [Member]
Discount rate	3.30%	4.10%
Rate of compensation increase	5.00%	5.00%

Expected rate of compensation increases (for pay-related plans).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(2)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

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