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INVENTORY
3 Months Ended
Mar. 31, 2021
INVENTORY  
INVENTORY

7. INVENTORY

Inventory consists of the following (in thousands):

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​

​

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​

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​

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March 31, 

​

December 31, 

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2021

​

2020

Raw materials

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$

4,927

​

$

—

Finished goods

​

 

12,854

​

 

6,812

Work in process

​

​

3,056

​

​

2,896

Total inventory

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$

20,837

​

$

9,708

​