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Inventories (Tables)
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Schedule of inventories

Inventories consist of the following:

 

 

 

September 30,

 

 

December 31,

 

 

 

2021

 

 

2020

 

Raw materials

 

$

665

 

 

$

435

 

Work-in-process

 

 

573

 

 

 

420

 

Total inventories

 

$

1,238

 

 

$

855