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Warrants (Tables)
3 Months Ended
Mar. 31, 2018
Warrants [Abstract]  
Summary of range of inputs used for the Black Scholes option pricing model valuations
Issuance Date   Expected Term at Issuance Date     Risk Free Interest Rate at Date of Issuance     Volatility at Date of Issuance     Stock Price at Date of Issuance  
8/20/2014     5.00       1.50 %     96.00 %   $ 0.63  
2/13/2015     5.00       1.28 %     100.00 %   $ 0.34  
5/22/2015     5.00       1.28 %     107.58 %   $ 0.29  
10/15/2015     5.00       1.71 %     58.48 %   $ 0.22  
10/26/2015     5.00       1.71 %     60.47 %   $ 0.21  
12/21/2015     5.00       1.75 %     58.48 %   $ 0.21  
12/28/2015     5.00       1.75 %     58.48 %   $ 0.16  
1/15/2016     5.00       1.76 %     58.48 %   $ 0.17  
5/3/2016     5.00       1.25 %     51.15 %   $ 0.21  
6/13/2016     5.00       1.14 %     51.12 %   $ 0.17  
6/29/2016     5.00       1.01 %     48.84 %   $ 0.17  
8/17/2016     5.00       1.15 %     51.55 %   $ 0.15  
11/4/2016     5.00       1.66 %     47.48 %   $ 0.16  
12/12/2016     5.00       1.90 %     48.54 %   $ 0.19  
8/19/2017     5.00       1.81 %     64.71 %   $ 0.35  
11/13/2017     5.00       2.08 %     66.24 %   $ 0.29  
1/16/2018     5.00       2.36 %     65.07 %   $ 0.27  

 

Remaining Expected Term at March 31, 2018   Risk Free Interest Rate at March 31, 2018     Volatility at March 31, 2018     Stock Price at March 31, 2018  
0.1 - 4.8     2.18 %     65.07 %   $ 0.30  
Summary of outstanding debt and equity warrants
    Warrants (Equity)           Warrants (Liability)        
    Amount     Weighted Average Exercise Price     Weighted Average Remaining Contractual Life     Amount     Weighted Average Exercise Price     Weighted Average Remaining Contractual Life  
Balance January 1, 2018     33,004,011       0.47       3.55       6,487,500       0.35       1.64  
Warrants issued with revolver loan     1,851,852       0.27       4.80       -       -       -  
Warrants expired     530,513       10.73       -       -       -       -  
Balance March 31, 2018     34,325,350       0.30       3.43       6,487,500       0.35       1.39