Quarterly report pursuant to Section 13 or 15(d)

Inventory (Tables)

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Inventory (Tables)
6 Months Ended
Jun. 30, 2018
Inventory Disclosure [Abstract]  
Schedule of Inventory

Inventory consisted of the following (in thousands):

 

    June 30, 2018     December 31, 2017  
             
Finished goods   $ 213     $ 512  
Work in process     248       182  
Raw materials     786       545  
Total inventory   $ 1,247     $ 1,239