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Stockholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2017
Equity [Abstract]  
Summary of Outstanding Warrants

The following table summarizes information of outstanding warrants issued to investors and consultants in exchange for their services as of December 31, 2017:

 

    Warrants     Warrant Term     Exercise Price     Exercisable  
Investors - Class A Warrants     6,334,626       1 year     $ 0.14-0.80       6,334,626  
Investors - Class B Warrants     5,400,478       5 years     $ 0.14       5,400,478  
Alimi Ahmed - Class E Warrants (1)     900,000         (1)   $ 0.0001       900,000  

 

(1) During 2015, a total of 2,700,000 Class E Warrants were issued by the Company to Lior Wayn pursuant to the terms of the Share Exchange Agreement and were exercisable in three equal tranches of 900,000 Shares each (the “Tranches”) at an exercise price of $0.0001 per Share, subject to and within 45 days of the Company achieving the milestones defined in the Share Exchange Agreement. On December 16, 2016, the Company terminated Lior Way’s employment agreements with the Company and Emerald Israel, and his removal as an executive officer and director. During 2017, Mr. Wayn transferred, sold and assigned his 5,212,878 shares of the Company’s common stock and 900,000 Class E Warrants that were fully-vested to an entity controlled by Mr. Alimi Ahmed, then a member of the Company’s Board of Directors. Effective as of December 31, 2016, the remaining 1,800,000 Class E Warrants that had been issued to Mr. Wayn were canceled.
Summary of Employee Stock Option Activity

A summary of the Company’s activity related to options to employees, executives, directors and consultants and related information is as follows:

 

   

For the year ended

December 31, 2017

    

For the year ended

December 31, 2016

  
    Amount of options     Weighted average exercise price     Aggregate intrinsic value     Amount of options     Weighted average exercise price     Aggregate intrinsic value  
          $     $           $     $  
Outstanding at beginning of year     4,193,397       0.11               561,280       0.0666          
Granted                             5,440,483       0.1336          
Exercised     -       -               (697,086 )     -          
Cancelled     (4,130,397 )     (0.11 )             (550,000 )     (0.3956 )        
                                                 
Outstanding at the end of year     62,500       0.01               4,193,397       0.11       1,006,415  
Vested and expected-to-vest at end of period     62,500       0.01       -       3,288,062       0.11       789,134  
Schedule of Stock Options Outstanding Exercise Price Range

The stock options outstanding as of December 31, 2017, and December 31, 2016, have been separated into exercise prices, as follows:

 

Exercise price   Stock options outstanding as of December 31,     Weighted average remaining contractual life – years as of December 31,     Stock options exercisable as of December 31,  
    2017     2016     2017     2016     2017     2016  
                                     
0.4     -       1,208,600       -       9.25       -       1,208,600  
                                                 
0.2     -       1,870,000       -       9       -       1,870,000  
(*)     62,500       1,114,797       8.25       9.25       62,500       1,114,797  
      62,500       4,193,397       8.25       9.25       4,193,397       4,193,397  

 

(*) 0.01 or less
Schedule of Fair Value Assumptions

The fair value of the stock options is estimated at the date of grant using Black-Scholes options pricing model with the following weighted-average assumptions:

 

    Years ended December 31,  
    2017     2016  
             
Expected volatility     (* )     157 %
Risk-free interest     (* )     0.69 %
Dividend yield     (* )     0 %
Expected life of up to (years)     (* )     6.0  

 

(*) There were no options granted during the year ended December 31, 2017.