Note 11 - Deferred Compensation (Details Textual) - USD ($)	12 Months Ended
Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014
Deferred Compensation Arrangement with Individual, Compensation Expense	$ 27,000	$ 32,000	$ 37,000
Founder and Former Chief Executive Office and His Ex Wife [Member]
Deferred Compensation Arrangement, Annual Payment	$ 114,000

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-SubTopic 10
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

Name:	us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration