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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Sep. 27, 2025 | Sep. 28, 2024
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Deferred tax assets [Abstract] |  |
Net operating loss carryforwards | $ 56,549 | $ 55,785
Allowance for doubtful accounts | 323 | 272
Inventory | 742 | 873
Deferred revenue | 429 | 486
Other accruals | 8,735 | 4,026
Total deferred tax assets | 66,778 | 61,442
Deferred tax liabilities [Abstract] |  |
Intangible assets | 1,886 | 278
Property, plant and equipment | 10,362 | 8,949
Total deferred tax liabilities | 12,248 | 9,227
Net deferred tax assets | 54,530 | 52,215
Valuation allowance | (53,784) | (50,888)
Net deferred tax assets | $ 746 | $ 1,327

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