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Income Taxes - Tax Benefits (Details) - USD ($) | 12 Months Ended
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Dec. 29, 2019 | Dec. 30, 2018
Income Taxes |  |
Balance at the beginning of the period | $ 2,023,000 | $ 2,028,000
Additions for tax positions of prior years | 179,000 | 510,000
Reductions for tax positions of prior years | (623,000) | (515,000)
Balance at the end of the period | 1,579,000 | 2,023,000
Interest expense (benefit) included in income tax expense | 11,000 | (39,000)
Income tax expense, accrued interest and penalties | $ 154,000 | $ 165,000

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