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Inventories
 3 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Inventories

6. Inventories

Inventories consist of the following:

 

 

 

March 31,

2020

 

 

December 31,

2019

 

Component parts

 

$

4,723

 

 

$

4,948

 

Finished goods

 

 

4,380

 

 

 

4,189

 

Total inventory

 

$

9,103

 

 

$

9,137