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Debt Obligations - Schedule of Fair Value of Embedded Derivatives and Warrants (Details) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2016
Gross cash proceeds $ 6,250,000 $ 4,000,000
2018 Proceeds Investment Agreement [Member]      
Gross cash proceeds 10,000,000    
Proceeds Investment Agreement [Member] | 2018 Proceeds Investment Agreement [Member]      
Gross cash proceeds 9,067,513    
Common Stock Purchase Warrants [Member] | 2018 Proceeds Investment Agreement [Member]      
Gross cash proceeds $ 932,487