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Note 11 - Employee Benefit Plans (Tables) | 12 Months Ended
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Sep. 30, 2023
Notes Tables |
Schedule of Net Benefit Costs [Table Text Block] |
|  | Year Ended |
|  | September 30, |  |  | October 1, |  |  | October 2, |
(In thousands) |  | 2023 |  |  | 2022 |  |  | 2021 |
Service cost |  | $ | 333 |  |  | $ | 399 |  |  | $ | 312 |
Interest cost |  |  | 518 |  |  |  | 347 |  |  |  | 316 |
Amortization of net loss |  |  | 13 |  |  |  | 278 |  |  |  | 215 |
Net periodic pension cost |  | $ | 864 |  |  | $ | 1,024 |  |  | $ | 843 |
Defined Benefit Plan, Assumptions [Table Text Block] |
|  | Measurement Date |
|  | September 30, |  |  | October 1, |  |  | October 2, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
Assumptions at year-end: |  |  |  |  |  |  |  |  |  |  |  |
Discount rate |  |  | 5.25 | % |  |  | 4.50 | % |  |  | 2.75 | %
Rate of increase in compensation levels |  |  | 3.00 | % |  |  | 3.00 | % |  |  | 3.00 | %
Schedule of Expected Benefit Payments [Table Text Block] |
Fiscal year(s) |  |  | In thousands |
2024 |  |  | $ | 611 |
2025 |  |  |  | 930 |
2026 |  |  |  | 855 |
2027 |  |  |  | 855 |
2028 |  |  |  | 855 |
2029 | - | 2033 |  |  |  | 4,745 |
Supplemental Employee Retirement Plan [Member] |
Notes Tables |
Schedule of Defined Benefit Plans Disclosures [Table Text Block] |
|  | Year Ended |
|  | September 30, |  |  | October 1, |  |  | October 2, |
(In thousands) |  | 2023 |  |  | 2022 |  |  | 2021 |
Change in benefit obligation: |  |  |  |  |  |  |  |  |  |  |  |
Benefit obligation at beginning of year |  | $ | 11,779 |  |  | $ | 12,888 |  |  | $ | 11,610 |
Service cost |  |  | 333 |  |  |  | 399 |  |  |  | 312 |
Interest cost |  |  | 518 |  |  |  | 347 |  |  |  | 316 |
Actuarial (gain) loss |  |  | (900 | ) |  |  | (1,650 | ) |  |  | 855 |
Distributions |  |  | (198 | ) |  |  | (205 | ) |  |  | (205 | )
Benefit obligation at end of year |  | $ | 11,532 |  |  | $ | 11,779 |  |  | $ | 12,888 |
Change in plan assets: |  |  |  |  |  |  |  |  |  |  |  |
Actual employer contributions |  | $ | 198 |  |  | $ | 205 |  |  | $ | 205 |
Actual distributions |  |  | (198 | ) |  |  | (205 | ) |  |  | (205 | )
Plan assets at fair value at end of year |  | $ | - |  |  | $ | - |  |  | $ | - |
Reconciliation of funded status to net amount recognized: |  |  |  |  |  |  |  |  |  |  |  |
Funded status |  | $ | (11,532 | ) |  | $ | (11,779 | ) |  | $ | (12,888 | )
Net amount recognized |  | $ | (11,532 | ) |  | $ | (11,779 | ) |  | $ | (12,888 | )
Amounts recognized in accumulated other comprehensive loss: |  |  |  |  |  |  |  |  |  |  |  |
Unrecognized net loss |  | $ | 373 |  |  | $ | 1,285 |  |  | $ | 3,213 |
Net amount recognized |  | $ | 373 |  |  | $ | 1,285 |  |  | $ | 3,213 |
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |
Net (gain) loss |  | $ | (900 | ) |  | $ | (1,650 | ) |  | $ | 855 |
Amortization of net loss |  |  | (13 | ) |  |  | (278 | ) |  |  | (215 | )
Total recognized in other comprehensive (loss) income |  | $ | (913 | ) |  | $ | (1,928 | ) |  | $ | 640 |

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