Quarterly report pursuant to Section 13 or 15(d)

Concentration of Risk (Details)

v3.21.1
Concentration of Risk (Details) - customer
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Total Revenue      
Concentration Risk [Line Items]      
Percentage of accounts receivable and total revenue 10.00% 10.00%  
Number of major customers 3 2  
Accounts Receivable      
Concentration Risk [Line Items]      
Number of major customers 3   3
Customer One | Total Revenue      
Concentration Risk [Line Items]      
Percentage of accounts receivable and total revenue 28.00% 53.00%  
Customer One | Accounts Receivable      
Concentration Risk [Line Items]      
Percentage of accounts receivable and total revenue 13.00%   57.00%
Customer Two | Total Revenue      
Concentration Risk [Line Items]      
Percentage of accounts receivable and total revenue 24.00% 32.00%  
Customer Two | Accounts Receivable      
Concentration Risk [Line Items]      
Percentage of accounts receivable and total revenue 0.00%   0.00%
Customer Three | Total Revenue      
Concentration Risk [Line Items]      
Percentage of accounts receivable and total revenue 16.00%    
Customer Three | Accounts Receivable      
Concentration Risk [Line Items]      
Percentage of accounts receivable and total revenue 44.00%   0.00%
Customer Four | Accounts Receivable      
Concentration Risk [Line Items]      
Percentage of accounts receivable and total revenue 25.00%   12.00%