Annual report pursuant to Section 13 and 15(d)

Inventory (Details)

v3.20.4
Inventory (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]      
Finished goods $ 8,876 $ 10,403  
Work in process 751 730  
Raw materials 2,902 2,728  
Inventory 12,529 13,861  
Inventory write-downs $ 2,242 $ 1,887 $ 1,343