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Inventories (Tables)
3 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Components of inventories Components of inventories consist of the following:
March 31,
2020
December 31,
2019
Raw materials$14,203  $12,755  
Work in process2,793  3,117  
Finished goods8,559  7,593  
$25,555  $23,465