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Note 8 - Income Taxes (Details Textual) | 6 Months Ended |
--- | --- | ---
Apr. 03, 2021 USD ($) item | Mar. 28, 2020 | Oct. 03, 2020 USD ($)
Effective Income Tax Rate Reconciliation, Percent, Total | 22.80% | 21.40% |
Deferred Tax Liabilities, Net, Total | $ 6,102,000 |  | $ 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 |  |

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