Quarterly report pursuant to Section 13 or 15(d)

Concentrations (Details)

v3.19.3
Concentrations (Details) - Segment
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Total sales [Member]    
Concentrations (Textual)    
Concentration risk, percentage 20.10% 37.80%
Number of customers 1 3
Total sales [Member] | United States [Member]    
Concentrations (Textual)    
Concentration risk, percentage 10.00% 10.00%
Total sales [Member] | First customer [Member]    
Concentrations (Textual)    
Concentration risk, percentage   16.00%
Total sales [Member] | Second customer [Member]    
Concentrations (Textual)    
Concentration risk, percentage   11.20%
Total sales [Member] | Third customer    
Concentrations (Textual)    
Concentration risk, percentage   10.60%
Accounts Receivable [Member]    
Concentrations (Textual)    
Concentration risk, percentage 87.80%  
Number of customers 4  
Accounts Receivable [Member] | First customer [Member]    
Concentrations (Textual)    
Concentration risk, percentage 33.80%  
Accounts Receivable [Member] | Second customer [Member]    
Concentrations (Textual)    
Concentration risk, percentage 18.40%  
Accounts Receivable [Member] | Third customer    
Concentrations (Textual)    
Concentration risk, percentage 25.00%  
Accounts Receivable [Member] | Four customer    
Concentrations (Textual)    
Concentration risk, percentage 10.60%