Note 7 - Income Taxes (Details Textual) - USD ($)	6 Months Ended
	Apr. 02, 2016	Mar. 28, 2015	Oct. 03, 2015
State and Local Jurisdiction [Member] | Earliest Tax Year [Member]
Operating Loss Carryforwards Expiration Date 1	2017
Tax Credit Carryforward, Expiration Date 1	2016
State and Local Jurisdiction [Member] | Latest Tax Year [Member]
Operating Loss Carryforwards Expiration Date 1	2031
Tax Credit Carryforward, Expiration Date 1	2020
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	$ 7,500,000
Deferred Tax Assets, Tax Credit Carryforwards	$ 178,000
Subsequent Years [Member]
Open Tax Year	2010
Effective Income Tax Rate Reconciliation, Percent	34.30%	34.50%
Deferred Tax Liabilities, Net, Noncurrent	$ 5,436,000		$ 6,057,000
Deferred Tax Assets, Valuation Allowance	334,000		$ 492,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	$ 0