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Inventory (Tables)
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of inventory
Inventory consists of the following as of December 31, 2020 and December 31, 2019 (in thousands):
As of December 31,
20202019
Raw materials$633 $412 
Work in process350 258 
Finished goods644 320 
Total$1,627 $990