Annual report pursuant to Section 13 and 15(d)

Concentrations (Details)

v3.19.1
Concentrations (Details)
12 Months Ended
Dec. 31, 2018
Segment
Number
Dec. 31, 2017
Number
Total sales [Member]    
Concentrations (Textual)    
Concentration risk, percentage 43.30% 15.00%
Number of customers | Number 3 1
Total sales [Member] | United States [Member]    
Concentrations (Textual)    
Concentration risk, percentage 10.00% 10.00%
Accounts Receivable [Member]    
Concentrations (Textual)    
Concentration risk, percentage 82.40%  
Number of customers | Segment 2  
First customer [Member] | Total sales [Member]    
Concentrations (Textual)    
Concentration risk, percentage 11.20%  
First customer [Member] | Accounts Receivable [Member]    
Concentrations (Textual)    
Concentration risk, percentage 24.10%  
Second customer [Member] | Total sales [Member]    
Concentrations (Textual)    
Concentration risk, percentage 13.90%  
Second customer [Member] | Accounts Receivable [Member]    
Concentrations (Textual)    
Concentration risk, percentage 58.30%  
Third customer | Total sales [Member]    
Concentrations (Textual)    
Concentration risk, percentage 18.20%