Quarterly report pursuant to Section 13 or 15(d)

Customer Concentration (Details)

v3.20.2
Customer Concentration (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Customer A [Member] | Total Revenues from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage 25.00% 30.00% 26.00% 30.00%  
Customer A [Member] | Accounts Receivable, Net from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage     12.00%   21.00%
Customer B [Member] | Total Revenues from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage 15.00% 20.00% 15.00% 19.00%  
Customer B [Member] | Accounts Receivable, Net from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage         13.00%
Customer C [Member] | Total Revenues from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage 17.00% 19.00% 16.00% 19.00%  
Customer C [Member] | Accounts Receivable, Net from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage     27.00%   22.00%
Customer D [Member] | Total Revenues from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage 16.00% 23.00% 16.00% 23.00%  
Customer D [Member] | Accounts Receivable, Net from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage     17.00%   13.00%
Customer E [Member] | Total Revenues from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage   0.00%   0.00%  
Customer E [Member] | Accounts Receivable, Net from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage     10.00%   13.00%
Customer F [Member] | Total Revenues from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage 11.00%   11.00%    
Customer F [Member] | Accounts Receivable, Net from External Customers [Member]          
Concentration Risk [Line Items]          
Concentration Risk, Percentage     15.00%   14.00%