Note 13 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($)	12 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014
Computed tax at the U.S. statutory rate	$ 2,065,000	$ 1,926,000	$ 1,234,000
Increases (decreases):
State income taxes, net of federal tax benefit	61,000	27,000	13,000
Differences between U.S. and foreign tax rates	(98,000)	(191,000)	(27,000)
Officer's life insurance	(50,000)	(15,000)	(57,000)
Domestic production deduction	(168,000)	(115,000)	(116,000)
Other, net	17,000	40,000	(9,000)
Income tax expense	$ 1,827,000	$ 1,672,000	$ 1,038,000