Quarterly report pursuant to Section 13 or 15(d)

CONCENTRATION - Customer Concentrations (Details)

v3.20.2
CONCENTRATION - Customer Concentrations (Details) - Customer Concentrations
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Revenue          
CONCENTRATIONS          
Concentration risk (as a percent) 115.53% 86.68% 97.57% 80.51%  
Revenue | Customer A          
CONCENTRATIONS          
Concentration risk (as a percent)   46.36%   64.01%  
Revenue | Customer F          
CONCENTRATIONS          
Concentration risk (as a percent)     30.28%    
Revenue | Customer G          
CONCENTRATIONS          
Concentration risk (as a percent)     43.86%    
Revenue | Customer H          
CONCENTRATIONS          
Concentration risk (as a percent) 94.13%   23.43%    
Revenue | Customer I          
CONCENTRATIONS          
Concentration risk (as a percent)   40.32%   16.50%  
Revenue | Customer J          
CONCENTRATIONS          
Concentration risk (as a percent) 21.40%        
Accounts Receivable          
CONCENTRATIONS          
Concentration risk (as a percent)     88.19%   25.96%
Accounts Receivable | Customer D          
CONCENTRATIONS          
Concentration risk (as a percent)         13.73%
Accounts Receivable | Customer E          
CONCENTRATIONS          
Concentration risk (as a percent)         12.23%
Accounts Receivable | Customer F          
CONCENTRATIONS          
Concentration risk (as a percent)     20.99%    
Accounts Receivable | Customer G          
CONCENTRATIONS          
Concentration risk (as a percent)     34.38%    
Accounts Receivable | Customer H          
CONCENTRATIONS          
Concentration risk (as a percent)     32.82%