Quarterly report pursuant to Section 13 or 15(d)

Concentrations (Details Textual)

v3.20.2
Concentrations (Details Textual)
6 Months Ended 12 Months Ended
Jun. 30, 2020
Customer / Integer
Supplier / Integer
Jun. 30, 2019
Supplier / Integer
Dec. 31, 2019
Customer / Integer
Supplier / Integer
Outstanding accounts payable [Member]      
Concentrations (Textual)      
Concentration risk, percentage   10.00%  
Number of supplier   4  
10% or more of purchase [Member] | Outstanding accounts payable [Member]      
Concentrations (Textual)      
Concentration risk, percentage 93.60%   90.80%
Number of supplier 1   1
Outstanding accounts receivable [Member]      
Concentrations (Textual)      
Concentration risk, percentage 10.00%    
More than 10% Revenues [Member] | Outstanding accounts receivable [Member]      
Concentrations (Textual)      
Concentration risk, percentage 78.70%   93.00%
Number of customer | Customer / Integer 2   2