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Inventories (Tables)
9 Months Ended
Sep. 27, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories consisted of the following (in thousands):
September 27, 2020December 31, 2019
Raw materials$25,021 $27,285 
Work-in-process3,666 5,503 
Finished goods25,173 27,473 
$53,860 $60,261