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Inventories
12 Months Ended
Dec. 31, 2020
Inventory Net [Abstract]  
Inventories

5. Inventories

 

Inventories consisted of the following:

 

   As of December 31, 
(in thousands)  2020   2019 
Raw materials  $26,372   $16,220 
Work-in-process   3,593    2,713 
Finished goods   36,280    29,485 
Inventory obsolescence reserve   (519)   (790)
Inventories, net  $65,726   $47,628