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Accrued Liabilities (Details) - USD ($)
$ in Thousands
Dec. 28, 2019
Dec. 29, 2018
Accrued Liabilities    
Employee compensation $ 1,917 $ 2,858
Customer related allowances and accruals 4,876 4,627
Other accrued items 2,896 3,587
Accrued Liabilities, Current, Total $ 9,689 $ 11,072