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Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands | 9 Months Ended |
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Jul. 02, 2021 | Oct. 02, 2020
New Accounting Pronouncement, Early Adoption [Line Items] |  |
Fiscal Period, Policy [Policy Text Block] | We have a 52- or 53-week fiscal year ending on the Friday closest to the last day of September. Fiscal year 2021 includes 52 weeks and fiscal year 2020 included 53 weeks. To offset the effect of holidays, for fiscal years in which there are 53 weeks, we include the extra week arising in such fiscal years in the first fiscal quarter. Our first fiscal quarter ended January 1, 2021 included 13 weeks and the first fiscal quarter ended January 3, 2020 had 14 weeks. |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | $ 123 | $ 347
Accounts Receivable, Allowance for Credit Loss | $ 100 |
Basis spread on variable rate | 25.00% |

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