Quarterly report pursuant to Section 13 or 15(d)

Inventory (Details)

v3.19.2
Inventory (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Finished goods $ 326 $ 43
Work in process 604 164
Raw materials 812 558
Total inventory $ 1,742 $ 765