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Inventories (Tables)
3 Months Ended
Mar. 28, 2020
Inventories [Abstract]  
Schedule Of Inventories

March 28,

December 28,

2020

2019

Raw materials

$

14,054

$

15,879

Work in progress

9,922

12,111

Finished goods

36,592

40,915

$

60,568

$

68,905