Annual report pursuant to Section 13 and 15(d)

8. Stock Options and Warrants (Tables)

v3.19.1
8. Stock Options and Warrants (Tables)
12 Months Ended
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]  
Stock option activity
    Options    

Weighted Avg.

Exercise Price

 
Options outstanding, January 1, 2017     23,474,256     $ 0.30  
Options granted     12,561,852       0.12  
Options exercised     (449,754 )     0.05  
Options cancelled     (188,679 )     0.53  
Options outstanding, December 31, 2017     35,397,675     $ 0.23  
Options granted     2,083,335       0.18  
Options exercised     (179,710 )     0.07  
Options cancelled     (2,000,000 )     0.28  
Options outstanding, December 31, 2018     35,301,300       0.22  
Options outstanding by Per Share Price
        Outstanding Options       Exercisable Options  
 

Option

Exercise Price

Per Share

      Shares      

Life

(Years)

     

Weighted

Average Exercise

Price

      Shares      

Weighted

Average Exercise

Price

 
  $ 0.05 - $ 0.24       13,766,250       8.1     $ 0.10       13,466,250     $ 0.10  
  $ 0.25 - $ 0.49       20,913,552       3.3       0.27       18,913,552       0.27  
  $ 0.50 - $ 0.99       471,052       5.3       0.85       471,052       0.85  
  $ 1.00 - $ 2.00       150,446       4.6       1.18       150,446       1.18  
          35,301,300       5.2     $ 0.22       33,001,300     $ 0.21  
Assumptions used for option valuation
    Years Ended  
    2018     2017  
Expected life (years)     5.5       5 – 6  
Risk free interest rate     1.70%       1.72 – 1.94%  
Volatility     118%       114 – 124%  
Expected dividend yield     0%       0%  
Warrant activity
    Warrants    

Weighted Avg.

Exercise Price

 
Warrants outstanding, January 1, 2017     11,446,892       0.15  
Warrants granted     16,160,770       0.05  
Warrants exercised     (4,414,000 )     0.08  
Warrants cancelled     (5,571,225 )     0.10  
Warrants outstanding, December 31, 2017     17,622,437     $ 0.09  
Warrants granted     18,238,688       0.05  
Warrants exercised     (12,517,773 )     0.05  
Warrants cancelled     (2,287,997 )     0.05  
Warrants outstanding, December 31, 2018     21,055,355       0.09  
Warrants outstanding by Per Share Price
          Outstanding Warrants       Exercisable Warrants  
 

Warrant

Exercise Price

Per Share

      Shares      

Life

(Years)

     

Weighted

Average Exercise

Price

      Shares      

Weighted

Average Exercise

Price

 
  $ 0.05 - $ 0.24       18,343,688       0.9     $ 0.06        18,343,688     $ 0.06  
  $ 0.25 - $ 0.49       2,641,667       2.2       0.30        2,641,667       0.30  
  $ 0.50 - $ 1.00       70,000       5.3       0.80        70,000       0.80  
          21,055,355       1.1     $ 0.09       21,055,355     $ 0.09