Quarterly report pursuant to Section 13 or 15(d)

STOCK OPTIONS AND WARRANTS (Tables)

v3.22.2.2
STOCK OPTIONS AND WARRANTS (Tables)
3 Months Ended
Jul. 31, 2022
Share-Based Payment Arrangement [Abstract]  
Assumptions for options
           
    Three Months Ended July 31,  
    2022     2021  
Risk-free interest rate     2.9%       0.87%  
Expected volatility     139%       113%  
Expected lives (years)     2.5       2.5  
Expected dividend yield     0.00%       0.00%  
Schedule of stock option activity
               
Options   Weighted Average Exercise Price per Share     Weighted Average Grant Date Fair Value per Share  
Outstanding, April 30, 2022     40,900     $ 53.05  
Issued     1,002       2.27  
Forfeited     (3,633 )     104.62  
Outstanding, July 31, 2022     38,269     $ 46.83  
Exercisable, July 31, 2022     35,769     $ 49.92  
Vested and expected to vest     38,269     $ 46.83  
Unvested stock option activity
           
    Options     Weighted
Average
Grant Date
Fair Value
per Share
 
             
Unvested, April 30, 2022     4,000     $  
Issued     1,002       2.27  
Vested     (2,502 )      
Forfeited            
Unvested, July 31, 2022     2,500     $ 2.50  
Schedule of options by exercise price
                               
Exercise Price     Number of
Options
Outstanding
    Weighted
Average
Remaining
Contractual Life
(Years) of
Outstanding
Options
    Weighted
Average
Exercisable
Price Per Share
    Number of
Options
Exercisable
    Weighted Average
Exercise Price Per Share
of Exercisable
Options
 
                                             
$ 82.95       333       0.10     $ 82.95       333     $ 82.95  
$ 83.70       6,000       0.25     $ 83.70       6,000     $ 83.70  
$ 80.10       800       1.10     $ 80.10       800     $ 80.10  
$ 80.85       667       0.38     $ 80.85       667     $ 80.85  
$ 102.45       333       0.46     $ 102.45       333     $ 102.45  
$ 97.35       333       0.60     $ 97.35       333     $ 97.35  
$ 74.25       6,000       0.98     $ 74.25       6,000     $ 74.25  
$ 57.00       800       2.15     $ 57.00       800     $ 57.00  
$ 60.60       667       0.88     $ 60.60       667     $ 60.60  
$ 55.50       333       0.95     $ 55.50       333     $ 55.50  
$ 51.00       333       1.10     $ 51.00       333     $ 51.00  
$ 61.20       6,000       1.46     $ 61.20       6,000     $ 61.20  
$ 36.00       667       1.38     $ 36.00       667     $ 36.00  
$ 37.05       333       1.46     $ 37.05       333     $ 37.05  
$ 15.75       333       1.60     $ 15.70       333     $ 15.70  
$ 10.05       6,000       2.05     $ 10.05       6,000     $ 10.05  
$ 26.55       667       1.88     $ 26.55       667     $ 26.55  
$ 16.20       334       1.96     $ 16.20       334     $ 16.20  
$ 3.19       334       2.10     $ 3.19       334     $ 3.19  
$ 2.50       6,000       2.65     $ 2.50       3,500     $ 2.50  
$ 2.29       668       2.38     $ 2.29       668     $ 2.29  
$ 2.24       334       2.46     $ 2.24       334     $ 2.24  
  Total       38,269       1.19     $ 46.83       35,769     $ 46.83  
Schedule of warrant activity
           
    Warrants    

Weighted
Average
Exercise Price

Per Share

 
Outstanding, April 30, 2022     10,772,736     $ 4.59  
Issued     -        
Exercised     (880,000 )      
Expired     (1,889 )      
Outstanding, July 31, 2022     9,890,847        
Exercisable, July 31, 2022     9,890,847     $ 4.99  
Schedule of warrants outstanding and exercisable
                 
Exercise Prices   Number of
Warrant Shares
Exercisable at
July 31, 2022
    Weighted
Average
Remaining
Contractual
Life Years
    Weighted
Average
Exercise Price Per Share
 
                   
$4.25     1,506,141       4.03          
$5.3125     264,706       4.03          
$5.00     7,000,000       4.07          
$6.25     1,050,000       4.05          
$0.001     70,000                
      9,890,847       4.06     $ 4.99