Quarterly report pursuant to Section 13 or 15(d)

5. STOCK OPTIONS AND WARRANTS (Tables)

v3.10.0.1
5. STOCK OPTIONS AND WARRANTS (Tables)
3 Months Ended
Jul. 31, 2018
Employee stock option activity
    Options     Weighted
Average
Exercise Price
    Weighted
Average
Grant Date
Fair Value
per Share
 
                   
Outstanding, April 30, 2018     95,250,000     $ 0.11     $ 0.11  
Issued                  
Forfeited                  
Exercised                  
Outstanding, July 31, 2018     95,250,000     $ 0.11     $ 0.11  
Exercisable, July 31, 2018     91,000,000     $ 0.12     $  
Vested and expected to vest     95,250,000     $ 0.11     $  
Unvested employee stock option activity
      Options     Weighted
Average
Grant Date
Fair Value
per Share
 
               
  Non-vested, April 30, 2018       7,200,000     $ 0.06  
  Granted              
  Vested       (2,950,000 )     0.06  
  Forfeited              
  Non-vested, July 31, 2018       4,250,000     $ 0.06  
Range of outstanding stock options
Exercise Price     Number of Options Outstanding     Weighted Average Remaining Contractual Life (years) of Outstanding Options     Weighted Average Exercisable Price     Number of Options Exercisable       Weighted Average Exercise Price of Exercisable Options  
$ 0.19       25,000,000       0.83     $ 0.19       25,000,000     $ 0.19  
$ 0.11       27,200,000       1.01     $ 0.11       27,200,000     $ 0.11  
$ 0.18       250,000       1.11     $ 0.18       250,000     $ 0.18  
$ 0.06       15,600,000       1.75     $ 0.06       15,600,000     $ 0.06  
$ 0.10       10,450,000       2.63     $ 0.10       10,450,000     $ 0.10  
$ 0.07       600,000       3.25     $ 0.07       600,000     $ 0.07  
$ 0.06       1,250,000       2.21     $ 0.06       1,250,000     $ 0.06  
$ 0.06       1,200,000       4.42     $ 0.06       1,200,000     $ 0.06  
$ 0.07       1,200,000       4.25     $ 0.07       1,200,000     $ 0.07  
$ 0.07       1,800,000       4.44     $ 0.07       1,300,000     $ 0.07  
$ 0.09       1,200,000       2.23     $ 0.09       1,200,000     $ 0.09  
$ 0.06       500,000       2.35     $ 0.06       500,000     $ 0.06  
$ 0.06       9,000,000       2.95     $ 0.06       5,250,000     $ 0.06  
  Total       95,250,000       1.68     $ 0.11       91,000,000     $ 0.12  
Warrant activity
      Warrants     Weighted
Average
Exercise Price
 
  Outstanding, April 30, 2018       33,993,104     $ 0.10  
  Issued       3,311,966       0.02  
  Expired              
  Outstanding, July 31, 2018       37,305,070       0.09  
  Exercisable, July 31, 2018       37,305,070     $ 0.09  
Schedule of warrants outstanding and exercisable
Exercise Prices   Number of
Warrant Shares
Exercisable at July 31, 2018
    Weighted
Average
Remaining
Contractual
Life
    Weighted
Average
Exercise Price
 
$0.018, $0.025, $0.026, $0.03, $0.0575, $0.065, $0.11 and $0.12     37,305,070       2.67     $ 0.09  
                         
Five Year Term   –   $0.12     17,854,308       2.38          
Five Year Term   –   $0.11     10,000,000       1.65          
Five Year Term   –   $0.065     769,231       3.39          
Five Year Term   –   $0.0575     869,565       3.68          
Five Year Term   –   $0.03     2,500,000       4.33          
Five Year Term   –   $0.026     1,923,077       4.91          
Five Year Term   –   $0.025     2,000,000       3.99          
Five Year Term   –   $0.018     1,388,889       4.83          
      37,305,070                  
Employee Options [Member]  
Assumptions
    Three Months Ended July 31,  
    2018     2017  
Risk-free interest rate           2.0%  
Expected volatility           107%  
Expected lives (years)           2.5  
Expected dividend yield           0.00%  
Non-Employee Options [Member]  
Assumptions
    Three Months Ended July 31,  
    2018     2017  
Risk-free interest rate     2.8%       1.8%  
Expected volatility     98%       108%  
Expected lives (years)     4.0       5.0  
Expected dividend yield     0.00%       0.00%