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Inventories (Tables)
 9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of inventories

Inventories consist of the following:

 

 

 

September 30,
2019

 

 

December 31,
2018

 

Raw materials

 

$

1,151

 

 

$

1,086

 

Finished goods

 

 

1,050

 

 

 

1,243

 

 

 

 

2,201

 

 

 

2,329

 

Allowance for excess inventory quantities

 

 

(57

)

 

 

(87

)

 

 

$

2,144

 

 

$

2,242