Annual report pursuant to Section 13 and 15(d)

Concentration of Risk, Segment and Geographic Information - Revenue by Geographical Region (Details)

v3.20.4
Concentration of Risk, Segment and Geographic Information - Revenue by Geographical Region (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Revenues from External Customers                    
Revenues $ 27,580 $ 557 $ 444 $ 804 $ 422 $ 8,855 $ 962 $ 8,131 $ 29,385 $ 18,370
Europe                    
Revenues from External Customers                    
Revenues                 25,010 100
Asia Pacific                    
Revenues from External Customers                    
Revenues                 3,100 600
United States                    
Revenues from External Customers                    
Revenues                 $ 1,275 $ 17,670