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Concentrations and Credit Risk (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Net revenues $ 24,433,304 $ 58,375,399
Customer A [Member]    
Net revenues [1] $ 12,869,446
Concentration risk, Percentage [1] 22.05%
Customer B [Member]    
Net revenues [1] $ 29,837,878
Concentration risk, Percentage [1] 51.11%
Customer C [Member]    
Net revenues $ 6,330,608 [1]
Concentration risk, Percentage 25.91% [1]
Customer D [Member]    
Net revenues $ 3,807,854 [1]
Concentration risk, Percentage 15.58% [1]
[1] Comprised less than 10% of net revenue for the respective period.