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Revenue - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disaggregation of Revenue [Line Items]    
Net revenues $ 10,643 $ 10,001
Computer hardware    
Disaggregation of Revenue [Line Items]    
Net revenues 3,095 0
Platform subscriptions and services revenue    
Disaggregation of Revenue [Line Items]    
Net revenues 5,308 9,108
Application transaction revenue    
Disaggregation of Revenue [Line Items]    
Net revenues $ 2,240 $ 893