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v3.21.2

Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Oct. 01, 2022 | Oct. 02, 2021 | Oct. 03, 2020 | Sep. 28, 2019
Defined Benefit Plan, Expected Future Benefit Payment, Year One |  | $ 576,000 |  |
Depreciation, Total |  | 13,600,000 | $ 13,200,000 | $ 12,500,000
Interest Costs Capitalized |  | 0 | 0 | 0
Goodwill, Impairment Loss |  | 0 |  |
Asset Impairment Charges, Total |  | $ 1,415,000 | $ 343,000 | $ 0
Computer Software, Intangible Asset [Member] |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  | 5 years |  |
Machinery and Equipment [Member] | Minimum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 3 years |  |
Machinery and Equipment [Member] | Maximum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 15 years |  |
Building [Member] | Minimum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 10 years |  |
Building [Member] | Maximum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 30 years |  |
Land Improvements [Member] | Minimum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 5 years |  |
Land Improvements [Member] | Maximum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 15 years |  |
Forecast [Member] |  |  |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total | $ 1,000,000.0 |  |  |
Decrease in Assumed Discount Rate [Member] |  |  |  |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate |  |  | 0.25% |
Defined Benefit Plan, Increase of Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Plan Assets |  | $ 356,000 |  |
Defined Benefit Plan, Increase in Accumulated Benefit Obligation |  | 293,000 |  |
Defined Benefit Plan, Increase in Expected Net Periodic Benefit Cost (Credit), Next Twelve Months |  | $ 39,000 |  |

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