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Inventories (Tables)
6 Months Ended
Jun. 30, 2020
Inventory Disclosure [Abstract]  
Components of inventories Components of inventories consist of the following:
June 30,
2020
December 31,
2019
Raw materials$12,609  $12,755  
Work in process3,196  3,117  
Finished goods8,649  7,593  
$24,454  $23,465