Note 12 - Equity Compensation - Summary of Activity Under Two Stock Option Plans (Details) - $ / shares	12 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Shares Available for Grant (in shares)	190,500	190,500	190,500	190,500
Number of Shares, Outstanding (in shares)	52,150	73,307	92,992	119,405
Weighted Average Ex. Price Per Share, Outstanding (in dollars per share)	$ 13.18	$ 12.16	$ 11.53	$ 11.30
Number of Shares, Exercisable (in shares)	52,150	73,307	89,592	107,605
Weighted Average Ex. Price Per Share, Exercisable (in dollars per share)	$ 13.18	$ 12.16	$ 11.40	$ 10.90
Shares Outstanding, Exercised (in shares)	(21,157)	(19,685)	(26,091)
Shares Outstanding, Expired Unexercised (in shares)			(322)