Note 8 - Income Taxes (Details Textual)	3 Months Ended
	Jan. 02, 2021 USD ($) item	Dec. 28, 2019	Oct. 03, 2020 USD ($)
Effective Income Tax Rate Reconciliation, Percent, Total	23.20%	22.70%
Deferred Tax Liabilities, Net, Total	$ 6,504,000		$ 6,568,000
Deferred Tax Assets, Valuation Allowance, Total	162,000		$ 207,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards, Total	$ 2,900,000
State and Local Jurisdiction [Member] | Earliest Tax Year [Member]
Operating Loss Carryforwards Expiration Date 1 | item	2,031
State and Local Jurisdiction [Member] | Latest Tax Year [Member]
Operating Loss Carryforwards Expiration Date 1 | item	2,036