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Inventories (Tables)
6 Months Ended
Jun. 30, 2021
Inventory Disclosure [Abstract]  
Components of inventories Components of inventories consist of the following:
June 30,
2021
December 31,
2020
Raw materials$13,120 $13,957 
Work in process3,560 3,996 
Finished goods5,620 6,721 
$22,300 $24,674