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401(k) Plan (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 27, 2024 | Dec. 29, 2023 | Dec. 30, 2022
Retirement Benefits [Abstract] |  |  |
Percentage of pre-tax annual compensation contributed to the plan | 15.00% |  |
Percentage of matching contributions of employee | 40.00% |  |
Percentage of matching contributions of employee's gross salary | 6.00% |  |
Company's matching contributions | $ 0.7 | $ 0.8 | $ 0.9

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