Quarterly report pursuant to Section 13 or 15(d)

8. STOCK OPTIONS AND WARRANTS (Tables)

v3.7.0.1
8. STOCK OPTIONS AND WARRANTS (Tables)
3 Months Ended
Jul. 31, 2017
Employee stock option activity
    Options     Weighted
Average
Exercise Price
    Weighted
Average
Grant Date
Fair Value
per Share
 
                   
Outstanding, April 30, 2017     79,100,000     $ 0.13     $ 0.09  
Issued     6,650,000       0.07       0.05  
Forfeited                  
Exercised                  
Outstanding, July 31, 2017     85,750,000     $ 0.12     $ 0.11  
Exercisable, July 31, 2017     76,500,000     $ 0.12     $  
Vested and expected to vest     85,750,000     $ 0.12     $  
Unvested employee stock option activity
    Options     Weighted
Average
Grant Date
Fair Value
per Share
 
             
Non-vested, April 30, 2017     6,800,000     0.10  
Granted     6,650,000       0.07  
Vested     (4,000,000 )     0.09  
Forfeited            
Non-vested, July 31, 2017     9,250,000     $ 0.09  
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       2.17     $ 0.19       25,000,000     $ 0.19  
$ 0.11       27,200,000       2.42     $ 0.11       27,200,000     $ 0.11  
$ 0.18       250,000       2.72     $ 0.18       250,000     $ 0.18  
$ 0.06       15,600,000       3.42     $ 0.06       15,600,000     $ 0.06  
$ 0.10       10,450,000       2.90     $ 0.10       6,000,000     $ 0.10  
$ 0.07       600,000       3.75     $ 0.07       600,000     $ 0.07  
$ 0.06       1,250,000       4.93     $ 0.06       1,250,000     $ 0.06  
$ 0.06       1,200,000       4.93     $ 0.06       100,000     $ 0.06  
$ 0.07       1,200,000       4.75     $ 0.07       300,000     $ 0.07  
$ 0.07       1,800,000       4.93     $ 0.07       100,000     $ 0.07  
$ 0.09       1,200,000       4.93     $ 0.09       100,000     $ 0.09  
Total       85,750,000       3.71     $ 0.12       76,500,000     $ 0.12  
Warrant activity
    Warrants     Weighted
Average
Exercise Price
 
Outstanding, April 30, 2017     67,853,504     $ 0.13  
Issued     2,833,333        
Expired            
Outstanding, July 31, 2017     70,686,837        
Exercisable, July 31, 2017     70,686,837     $ 0.13  
Schedule of warrants outstanding and exercisable
Range of Exercise Prices   Number of
Warrant Shares
Exercisable at
07/31/2017 
    Weighted
Average
Remaining
Contractual
Life
    Weighted
Average
Exercise Price
 
$0.025, $0.03, $0.0575, $0.065, $0.075, $0.11, $0.12 and $0.18     70,686,837       1.73     $ 0.13  
                         
Five Year Term   –   $0.075     1,056,000       0.19          
Five Year Term   –   $0.12     35,347,508       1.91          
Five Year Term   –   $0.18     19,811,200       0.42          
Five Year Term   –   $0.11     10,000,000       2.65          
Five Year Term   –   $0.065     769,231       4.39          
Five Year Term   –   $0.0575     869,565       4.68          
Five Year Term   –   $0.03     833,333       4.82          
Five Year Term   –   $0.025     2,000,000       4.99          
      70,686,837                  
Employee Options [Member]  
Assumptions
    Three Months Ended July 31,  
    2017     2016  
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,  
    2017     2016  
Risk-free interest rate     1.8%       1.8%  
Expected volatility     108%       110%  
Expected lives (years)     5.0       5.0  
Expected dividend yield     0.00%       0.00%