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INVENTORY
 3 Months Ended
Mar. 31, 2019
Inventory Disclosure [Abstract]  
INVENTORY

5. INVENTORY

The following table presents our inventory at March 31, 2019 and December 31, 2018, in thousands:

 

 

 

At March 31, 2019

 

 

At December 31, 2018

 

 

Raw materials

 

$

9,179

 

 

$

8,709

 

 

Work in progress

 

 

22,687

 

 

 

15,262

 

 

Finished goods

 

 

135

 

 

 

97

 

 

Total inventory

 

$

32,001

 

 

$

24,068