Note 11 - Employee Benefit Plans (Details) - SERP Plan Valuation Assumptions (Supplemental Employee Retirement Plan [Member])	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Supplemental Employee Retirement Plan [Member]
Assumptions at year-end:
Discount rate	4.25%	4.75%	4.00%
Rate of increase in compensation levels	3.00%	3.00%	3.00%

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=35743120&loc=d3e1928-114920

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant