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Inventories (Tables)
 6 Months Ended
Jun. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventories

The following table presents inventories (in thousands):

 

 

 

June 30,

 

 

December 31,

 

 

 

2020

 

 

2019

 

Raw materials

 

$

9,544

 

 

$

6,520

 

Work in process

 

 

3,471

 

 

 

2,039

 

Finished goods

 

 

741

 

 

 

258

 

Total inventories

 

$

13,756

 

 

$

8,817