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Inventories (Tables)
9 Months Ended
Sep. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of inventories

Inventories consist of the following:

 

    September 30,
2020
    December 31,
2019
 
             
Raw materials   $ 2,187     $ 1,425  
Finished goods     1,427       1,170  
      3,614       2,595  
Allowance for excess inventory quantities     (30 )     (41 )
    $ 3,584     $ 2,554