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Inventory
 3 Months Ended
Mar. 31, 2020
Inventory  
Inventory

6. Inventory

Inventory consists of the following (in thousands):

 

 

 

 

 

 

 

 

 

March 31, 

 

December 31, 

 

    

2020

    

2019

Raw materials

 

$

5,128

 

$

4,717

Work in process

 

 

2,619

 

 

2,573

Finished goods

 

 

3,645

 

 

3,173

Total

 

$

11,392

 

$

10,463

 

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