Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

v3.19.2
Stockholders' Equity (Tables)
6 Months Ended
Jun. 30, 2019
Equity [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The fair value of share-based awards was estimated using the Black-Scholes model with the following weighted-average assumptions for the six months ended June 30, 2019 and 2018:

 

Assumptions:

 

    2019     2018  
Dividend yield     0.00       0.00  
Risk-free interest rate     1.90-2.54 %     2.68-2.97 %
Expected volatility     105.2-106.1 %     116.3-137.33 %
Expected life (in years)     5       5-10  
Schedule of Stock Option Activity

Option activity for the six months ended June 30, 2019 and the year ended December 31, 2018 was as follows:

 

          Weighted Average     Weighted Average        
          Exercise     Remaining     Aggregate  
          Price     Contractual     Intrinsic  
    Options     ($)     Life (Yrs.)     Value ($)  
Options outstanding at December 31, 2017     299,938       4.40       7.33        
Granted     534,329       1.45       6.58        
Exercised     -       -       -        
Forfeited or cancelled     (8,000 )     4.59       -        
Options outstanding at December 31, 2018     826,267       2.49       6.47        
Granted     286,925       1.55       4.63        
Exercised     -       -       -        
Forfeited or cancelled     (5,000 )     1.15       -        
Options outstanding June 30, 2019     1,108,192       2.25       5.61       45,830  
Options expected to vest in the future as of June 30, 2019     388,858       2.22       5.48       28,309  
Options exercisable at June 30, 2019     719,334       2.28       5.69       17,521  
Options vested, exercisable, and options expected to vest at June 30, 2019     1,108,192       2.25       5.61       45,830  
Summary of Warrant Activity

Warrant activity for the six months ended June 30, 2019 and 2018 was as follows:

 

          Weighted Average     Weighted Average  
          Exercise     Remaining  
          Price     Contractual  
    Warrants     ($)     Life (Yrs.)  
Warrants outstanding at December 31, 2017     1,645,500       3.97       4.11  
Granted     1,607,000       1.30       4.64  
Exercised     (24,000 )     2.00       -  
Forfeited or cancelled     -       -       -  
Options outstanding at June 30, 2018     3,228,500       2.65       4.40  
                         
Options outstanding at December 31, 2018     3,050,600       2.75       3.86  
Granted     640,240       1.60       4.94  
Exercised     (70,230 )     1.08       -  
Forfeited or cancelled     -       -       -  
Options outstanding at June 30, 2019     3,620,610       2.58       3.63