Annual report pursuant to Section 13 and 15(d)

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

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Concentration of Risk, Segment and Geographic Information - Revenue by Geographical Region (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Revenues from External Customers    
Revenues $ 38,160 $ 29,385
Europe    
Revenues from External Customers    
Revenues 35,000 25,010
Asia Pacific    
Revenues from External Customers    
Revenues 550 3,100
United States    
Revenues from External Customers    
Revenues $ 2,610 $ 1,275