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Stockholders' Equity - Schedule of Estimated Values of Warrants Valuation Assumptions (Details)
12 Months Ended
Dec. 31, 2017
Warrant One [Member] | Placement Agent December 30, 2016 [Member]  
Risk-free interest rate 1.54%
Weighted average expected term 5 years
Expected volatility 134.18%
Expected dividend yield 0.00%
Warrant One [Member] | Noteholders [Member]  
Risk-free interest rate 1.76%
Weighted average expected term 5 years
Expected volatility 134.18%
Expected dividend yield 0.00%
Warrant Two [Member] | Placement Agent December 30, 2016 [Member]  
Risk-free interest rate 1.93%
Weighted average expected term 5 years
Expected volatility 123.07%
Expected dividend yield 0.00%
Warrant Two [Member] | Bridge Noteholders November 30, 2016 [Member]  
Risk-free interest rate 1.83%
Weighted average expected term 5 years
Expected volatility 123.94%
Expected dividend yield 0.00%
Warrant Two [Member] | Bridge Noteholders September 21, 2017 [Member]  
Risk-free interest rate 1.89%
Weighted average expected term 5 years
Expected volatility 130.80%
Expected dividend yield 0.00%
Warrant Two [Member] | Placement Agent November 17, 2017 [Member]  
Risk-free interest rate 2.06%
Weighted average expected term 5 years
Expected volatility 129.87%
Expected dividend yield 0.00%
Warrant Two [Member] | Placement Agent November 30, 2017 [Member]  
Risk-free interest rate 2.14%
Weighted average expected term 5 years
Expected volatility 131.18%
Expected dividend yield 0.00%