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Warrant Liabilities - Schedule of Weighted-average Assumptions (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Risk-free interest rate 2.42%  
Expected dividend yield 0.00% 0.00%
Expected lives 6 years  
Expected volatility 92.00%  
Gain on warrant liabilities $ 527,025 $ 1,367,777
Warrants [Member]    
Risk-free interest rate 1.53%
Expected dividend yield 0.00%
Expected lives 0 years 6 months 18 days
Expected volatility 96.70%
Number of warrants classified as liabilities 2,834,246
Gain on warrant liabilities $ 527,025 $ 1,367,777