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Inventories
 9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories, net are stated at the lower of cost and net realizable value using the first-in first-out costing method. Inventories as of September 30, 2021 and December 31, 2020 include the costs of material, labor, and factory overhead. Components of inventories consist of the following:
September 30,
2021		December 31,
2020
Raw materials$15,024 $13,957 
Work in process4,383 3,996 
Finished goods5,232 6,721 
$24,639 $24,674