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Segment Reporting and Concentrations - Additional information (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2021
segment
client
Mar. 31, 2020
client
Dec. 31, 2020
client
Segment Reporting Information [Line Items]      
Number of Reportable Segments | segment 3    
Foreign Customer [Member] | Sales Revenue, Net [Member]      
Segment Reporting Information [Line Items]      
Concentration Risk, Percentage 49.00% 54.00%  
Foreign Customer [Member] | Accounts receivable      
Segment Reporting Information [Line Items]      
Concentration Risk, Percentage 48.00%   55.00%
One Client [Member] | Sales Revenue, Net [Member]      
Segment Reporting Information [Line Items]      
Number of clients 1 1  
Concentration Risk, Percentage 12.00% 14.00%  
Four clients [Member] | Accounts receivable      
Segment Reporting Information [Line Items]      
Number of clients 4    
Concentration Risk, Percentage 45.00%    
Three Clients [Member] | Accounts receivable      
Segment Reporting Information [Line Items]      
Number of clients     3
Concentration Risk, Percentage     36.00%
Client [Member] | Sales Revenue, Net [Member]      
Segment Reporting Information [Line Items]      
Number of clients 0    
Concentration Risk, Percentage 10.00%