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Inventories (Tables)
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
Components of inventories Inventories as of December 31, 2021 and 2020 include the costs of material, labor, and factory overhead. Components of inventories consist of the following:
 December 31,
 20212020
Raw materials$15,772 $13,957 
Work in process4,035 3,996 
Finished goods4,833 6,721 
$24,640 $24,674