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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2018
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Assets and liabilities measured at fair value on a recurring basis as of December 31, 2018 and 2017 are summarized below:

 

          Fair Value Measurement  
    Total     Level 1     Level 2     Level 3  
                         
Warrant Liability   $ 2,785     $ -     $ -     $ 2,785  
Investment in Debt Securities     162,106       162,106       -       -  
                                 
Fair Value at December 31, 2018   $ 164,891     $ 162,106     $ -     $ 2,785  
                                 
Warrant Liability   $ 95,371     $ -     $ -     $ 95,371  
Investment in Debt Securities     243,469       243,469       -       -  
                                 
Fair Value at December 31, 2017   $ 338,840     $ 243,469     $ -     $ 95,371  

Changes in Fair Value of Company's Level 3 Valuation for Warrant Liability

The table presented below is a summary of changes in the fair value of the Company’s level 3 valuation for the warrant liability for the years ended December 31:

 

    2018     2017  
             
Beginning Balance January 1   $ 95,371     $ 246,451  
                 
Change in Fair Value of Warrant Liability     (92,586 )     (151,080 )
                 
Ending Balance, December 31   $ 2,785     $ 95,371  

Fair Value Measurements, Valuation Techniques

The significant assumptions used in the Black-Scholes option pricing model as of December 31, 2018 and 2017 include the following:

 

    December 31, 2018     December 31, 2017  
             
Volatility     63.58% - 91.93 %     109.3% - 122.22 %
Risk-free Interest Rate     2.36% - 2.59 %     1.03% - 1.27 %
Exercise Price   $ 0.75 - $1.37     $ 0.75 - $1.37  
Fair Value of Common Stock   $ 0.33     $ 0.40  
Expected Life     0.45 – 0.99 years       0.97 – 1.99 years