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INVENTORY
3 Months Ended
Mar. 31, 2022
INVENTORY  
INVENTORY

8. INVENTORY

Inventory consists of the following (in thousands):

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​

​

​

​

​

​

​

    

March 31, 

​

December 31, 

​

    

2022

​

2021

Raw materials

​

$

32,657

​

$

24,887

Work in process

​

​

9,163

​

​

8,875

Finished goods:

​

 

​

​

 

​

Deferred cost of sales

​

​

6,983

​

​

6,999

Manufactured finished goods

​

​

33,073

​

​

24,638

Total finished goods

​

​

40,056

​

​

31,637

Total inventory

​

$

81,876

​

$

65,399

​