Derivative Liability (Tables)
 3 Months Ended
Mar. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Reconciliation of Derivative Liability Measured at Fair Value Recurring Basis Using Significant Unobservable Inputs

The following table presents a reconciliation of the derivative liability measured at fair value on a recurring basis using significant unobservable inputs (Level 3) from December 31, 2016 to March 31, 2018:

 

    Conversion feature  
    derivative liability  
Balance at December 31, 2016   $ 4,956,637  
Initial fair value of derivative liability recorded as debt discount     336,094  
Initial fair value of derivative liability charged to other expense     537,541  
Reclass of derivative liability to additional paid in capital due to conversions     (390,996 )
Loss on change in fair value included in earnings     (1,485,907 )
Balance at December 31, 2017   $ 3,953,369  
Initial fair value of derivative liability recorded as debt discount     229,673  
Initial fair value of derivative liability charged to other expense     425,600  
Reclass of derivative liability to additional paid in capital due to conversions     (664,108 )
Loss on change in fair value included in earnings     24,902,861  
Balance at March 31, 2018   $ 28,847,395  
Assumptions for Determining Fair Value of Convertible Instruments

The Company used the following assumptions for determining the fair value of the convertible instruments granted under the Black-Scholes option pricing model:

 

   

From January 1, 2018

to March 31, 2018

  
       
Expected volatility     281% - 293%  
Expected term     3 – 12 months  
Risk-free interest rate     1.28%-2.93%  
Expected dividend yield     0%