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Summary of Accounting Policies (Details) - Sales Revenue, Net [Member]
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Customer A    
Concentration percentage 67.40% 0.00%
Customer B    
Concentration percentage 24.20% 0.00%
Customer C    
Concentration percentage 0.00% 17.20%
Customer D    
Concentration percentage 0.00% 15.10%
Customer E    
Concentration percentage 0.00% 13.10%
Customer F    
Concentration percentage 0.00% 10.60%
Customer G    
Concentration percentage 0.00% 10.10%