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Shareholders' Equity - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Apr. 02, 2022 | Apr. 03, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Total Other Comprehensive Income (Loss) | $ 170 | $ (203)
Foreign Currency Translation Adjustments |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Total Other Comprehensive Income (Loss) | (181) | (637)
Amortization of Prior Service Cost |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Total Other Comprehensive Income (Loss) | 101 | 101
Amortization of Net Actuarial Losses |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Total Other Comprehensive Income (Loss) | 250 | 333
Retirement Liability Adjustment |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Total Other Comprehensive Income (Loss) | $ 351 | $ 434

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