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Segment Reporting and Significant Customer Information - Revenue for Individual Countries that Exceed 10% of Total Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Revenue, Major Customer [Line Items]    
Total revenues $ 18,453 $ 14,284
United States    
Revenue, Major Customer [Line Items]    
Total revenues 10,643 9,221
United Kingdom    
Revenue, Major Customer [Line Items]    
Total revenues 3,999 2,120
Germany    
Revenue, Major Customer [Line Items]    
Total revenues 2,252 1,168
Rest of the world    
Revenue, Major Customer [Line Items]    
Total revenues $ 1,559 $ 1,775