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Inventories (Tables)
12 Months Ended
Dec. 31, 2021
Inventories  
Components of inventories

The components of inventory are summarized below (in thousands):

December 31, 

December 31, 

    

2021

    

2020

 

Inventories:

Raw materials

$

29,658

$

24,738

Work in process

 

32,605

 

24,215

Finished goods

 

3,649

 

2,562

$

65,912

$

51,515