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Inventories (Tables)
9 Months Ended
Sep. 30, 2020
Inventory Disclosure [Abstract]  
Components of inventories Components of inventories consist of the following:
September 30,
2020
December 31,
2019
Raw materials$13,613 $12,755 
Work in process3,920 3,117 
Finished goods7,130 7,593 
$24,663 $23,465