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Note 9 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016
Deferred Tax Liabilities, Net, Noncurrent	$ 8,103,000	$ 5,472,000
Deferred Tax Assets, Valuation Allowance	251,000	$ 280,000
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	(29,000)
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	7,400,000
Deferred Tax Assets, Tax Credit Carryforwards	$ 46,000
State and Local Jurisdiction [Member] | Earliest Tax Year [Member]
Operating Loss Carryforwards Expiration Date 1	2018
Tax Credit Carryforward, Expiration Date 1	2019
State and Local Jurisdiction [Member] | Latest Tax Year [Member]
Operating Loss Carryforwards Expiration Date 1	2031
Tax Credit Carryforward, Expiration Date 1	2020

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