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Inventory
 12 Months Ended
Dec. 31, 2019
Inventory  
Inventory

3. Inventory

Inventory consists of the following (in thousands):

 

 

 

 

 

 

 

 

 

 

As of

 

 

December 31,

 

    

2019

    

2018

Raw materials

 

$

4,717

 

$

1,546

Work in process

 

 

2,573

 

 

2,331

Finished goods

 

 

3,173

 

 

2,068

Total

 

$

10,463

 

$

5,945

 

Inventory comprises commercial instruments, assays, and the materials required to manufacture assays.