Quarterly report pursuant to Section 13 or 15(d)

Concentrations of Risk (Details)

v3.21.2
Concentrations of Risk (Details) - customer
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Concentration Risk [Line Items]    
Threshold used for calculating concentration of risk, percentage 10.00% 10.00%
Major Customers | Total Revenue | Customer risk    
Concentration Risk [Line Items]    
Percentage of accounts receivable and total revenue 10.00% 10.00%
Number of major customers 3 3
Major Customers | Accounts Receivable | Accounts receivable risk    
Concentration Risk [Line Items]    
Number of major customers 3 4
Customer One | Total Revenue | Customer risk    
Concentration Risk [Line Items]    
Percentage of accounts receivable and total revenue 28.00% 23.00%
Customer One | Accounts Receivable | Accounts receivable risk    
Concentration Risk [Line Items]    
Percentage of accounts receivable and total revenue 13.00% 59.00%
Customer Two | Total Revenue | Customer risk    
Concentration Risk [Line Items]    
Percentage of accounts receivable and total revenue 24.00% 27.00%
Customer Two | Accounts Receivable | Accounts receivable risk    
Concentration Risk [Line Items]    
Percentage of accounts receivable and total revenue 0.00% 13.00%
Customer Three | Total Revenue | Customer risk    
Concentration Risk [Line Items]    
Percentage of accounts receivable and total revenue 16.00% 39.00%
Customer Three | Accounts Receivable | Accounts receivable risk    
Concentration Risk [Line Items]    
Percentage of accounts receivable and total revenue 44.00% 12.00%
Customer Four | Accounts Receivable | Accounts receivable risk    
Concentration Risk [Line Items]    
Percentage of accounts receivable and total revenue 25.00% 11.00%