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Summary of Accounting Policies (Details) - Sales Revenue, Net [Member]
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
[1]
Customer A    
Concentration percentage 18.00%
Customer B    
Concentration percentage 10.40%
Customer C    
Concentration percentage 20.90%
[1] Represents less than 10% of total revenue