STOCK OPTIONS AND WARRANTS (Tables)
|
6 Months Ended |
Oct. 31, 2021 |
Share-based Payment Arrangement [Abstract] |
|
Assumptions for options |
Assumptions for options |
|
|
|
|
|
|
|
|
Six Months Ended October 31, |
|
|
|
2021 |
|
|
2020 |
|
Risk-free interest rate |
|
|
0.92% |
|
|
|
0.3% |
|
Expected volatility |
|
|
121% |
|
|
|
92% |
|
Expected term (years) |
|
|
2.5 |
|
|
|
2.5 |
|
Expected dividend yield |
|
|
0.00% |
|
|
|
0.00% |
|
|
Stock option activity |
Stock option activity |
|
|
|
|
|
|
|
|
|
|
|
Options |
|
|
Weighted Average Exercise
Price
per Share |
|
|
Weighted Average Grant Date Fair Value per Share |
|
|
|
|
|
|
|
|
|
|
|
Outstanding, April 30, 2021 |
|
|
41,333 |
|
|
$ |
79.97 |
|
|
$ |
79.97 |
|
Issued |
|
|
1,334 |
|
|
|
18.12 |
|
|
|
18.12 |
|
Forfeited |
|
|
– |
|
|
|
– |
|
|
|
– |
|
Exercised |
|
|
– |
|
|
|
– |
|
|
|
– |
|
Outstanding, October 31, 2021 |
|
|
42,667 |
|
|
$ |
78.04 |
|
|
$ |
78.04 |
|
Exercisable, October 31, 2021 |
|
|
41,667 |
|
|
$ |
79.67 |
|
|
$ |
– |
|
Vested and expected to vest |
|
|
42,667 |
|
|
$ |
78.04 |
|
|
$ |
– |
|
|
Unvested stock option activity |
Unvested stock option activity |
|
|
|
|
|
|
|
|
Options |
|
|
Weighted Average Grant Date Fair Value per Share |
|
|
|
|
|
|
|
|
Unvested, April 30, 2021 |
|
|
4,000 |
|
|
$ |
10.05 |
|
Granted |
|
|
1,334 |
|
|
|
18.12 |
|
Vested |
|
|
(4,334 |
) |
|
|
– |
|
Forfeited |
|
|
– |
|
|
|
– |
|
Unvested, October 31, 2021 |
|
|
1,000 |
|
|
$ |
10.05 |
|
|
Schedule of options by exercise price |
Schedule of options by exercise price |
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
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
of Exercisable
Options |
|
$ |
156.00 |
|
|
|
6,967 |
|
|
|
0.23 |
|
|
$ |
156.00 |
|
|
|
6,967 |
|
|
$ |
156.00 |
|
$ |
87.00 |
|
|
|
1,634 |
|
|
|
0.50 |
|
|
$ |
87.00 |
|
|
|
1,634 |
|
|
$ |
87.00 |
|
$ |
110.10 |
|
|
|
800 |
|
|
|
0.50 |
|
|
$ |
110.10 |
|
|
|
800 |
|
|
$ |
110.10 |
|
$ |
109.35 |
|
|
|
1,200 |
|
|
|
0.69 |
|
|
$ |
109.35 |
|
|
|
1,200 |
|
|
$ |
109.35 |
|
$ |
133.50 |
|
|
|
800 |
|
|
|
0.71 |
|
|
$ |
133.50 |
|
|
|
800 |
|
|
$ |
133.50 |
|
$ |
82.95 |
|
|
|
333 |
|
|
|
0.47 |
|
|
$ |
82.95 |
|
|
|
333 |
|
|
$ |
82.95 |
|
$ |
83.70 |
|
|
|
6,000 |
|
|
|
0.70 |
|
|
$ |
83.70 |
|
|
|
6,000 |
|
|
$ |
83.70 |
|
$ |
80.10 |
|
|
|
800 |
|
|
|
1.85 |
|
|
$ |
80.10 |
|
|
|
800 |
|
|
$ |
80.10 |
|
$ |
80.85 |
|
|
|
667 |
|
|
|
0.75 |
|
|
$ |
80.85 |
|
|
|
667 |
|
|
$ |
80.85 |
|
$ |
102.45 |
|
|
|
333 |
|
|
|
0.83 |
|
|
$ |
102.45 |
|
|
|
333 |
|
|
$ |
102.45 |
|
$ |
97.35 |
|
|
|
333 |
|
|
|
0.97 |
|
|
$ |
97.35 |
|
|
|
333 |
|
|
$ |
97.35 |
|
$ |
74.25 |
|
|
|
6,000 |
|
|
|
1.43 |
|
|
$ |
74.25 |
|
|
|
6,000 |
|
|
$ |
74.25 |
|
$ |
57.00 |
|
|
|
800 |
|
|
|
2.90 |
|
|
$ |
57.00 |
|
|
|
800 |
|
|
$ |
57.00 |
|
$ |
60.60 |
|
|
|
667 |
|
|
|
1.25 |
|
|
$ |
60.60 |
|
|
|
667 |
|
|
$ |
60.60 |
|
$ |
55.50 |
|
|
|
333 |
|
|
|
1.33 |
|
|
$ |
55.50 |
|
|
|
333 |
|
|
$ |
55.50 |
|
$ |
51.00 |
|
|
|
333 |
|
|
|
1.47 |
|
|
$ |
51.00 |
|
|
|
333 |
|
|
$ |
51.00 |
|
$ |
61.20 |
|
|
|
6,000 |
|
|
|
1.91 |
|
|
$ |
61.20 |
|
|
|
6,000 |
|
|
$ |
61.20 |
|
$ |
36.00 |
|
|
|
667 |
|
|
|
1.75 |
|
|
$ |
36.00 |
|
|
|
667 |
|
|
$ |
36.00 |
|
$ |
37.05 |
|
|
|
333 |
|
|
|
1.83 |
|
|
$ |
37.05 |
|
|
|
333 |
|
|
$ |
37.05 |
|
$ |
15.75 |
|
|
|
333 |
|
|
|
1.97 |
|
|
$ |
15.70 |
|
|
|
333 |
|
|
$ |
15.70 |
|
$ |
10.05 |
|
|
|
6,000 |
|
|
|
2.50 |
|
|
$ |
10.05 |
|
|
|
5,000 |
|
|
$ |
10.05 |
|
$ |
26.55 |
|
|
|
667 |
|
|
|
2.25 |
|
|
$ |
26.55 |
|
|
|
667 |
|
|
$ |
26.55 |
|
$ |
16.20 |
|
|
|
333 |
|
|
|
2.33 |
|
|
$ |
16.20 |
|
|
|
333 |
|
|
$ |
16.20 |
|
$ |
3.19 |
|
|
|
334 |
|
|
|
2.47 |
|
|
$ |
3.19 |
|
|
|
334 |
|
|
$ |
3.19 |
|
|
Total |
|
|
|
42,667 |
|
|
|
1.28 |
|
|
$ |
78.04 |
|
|
|
41,667 |
|
|
$ |
79.67 |
|
|
Warrant activity |
Warrant activity |
|
|
|
|
|
|
|
|
Warrants |
|
|
Weighted Average Exercise Price Per Share
|
|
Outstanding, April 30, 2021 |
|
|
2,981 |
|
|
$ |
58.70 |
|
Issued |
|
|
18,815,242 |
|
|
|
3.19 |
|
Exercised |
|
|
(8,041,414 |
) |
|
|
1.33 |
|
Expired |
|
|
– |
|
|
|
– |
|
Outstanding, October 31, 2021 |
|
|
10,773,828 |
|
|
|
– |
|
Exercisable, October 31, 2021 |
|
|
10,773,828 |
|
|
$ |
4.60 |
|
|
Schedule of warrants outstanding and exercisable |
Schedule of warrants outstanding and exercisable |
|
|
|
|
|
|
|
|
|
Exercise Prices |
|
Number of
Warrant Shares
Exercisable at
October 31, 2021 |
|
|
Weighted
Average
Remaining
Contractual
Life Years |
|
|
Weighted
Average
Exercise Price
Per Share |
|
|
|
|
|
|
|
|
|
|
|
$97.50 |
|
|
513 |
|
|
|
0.13 |
|
|
|
|
|
$86.25 |
|
|
580 |
|
|
|
0.42 |
|
|
|
|
|
$37.50 |
|
|
1,333 |
|
|
|
0.73 |
|
|
|
|
|
$45.00 |
|
|
555 |
|
|
|
0.56 |
|
|
|
|
|
$4.2500 |
|
|
1,506,141 |
|
|
|
4.78 |
|
|
|
|
|
$5.3125 |
|
|
264,706 |
|
|
|
4.78 |
|
|
|
|
|
$5.0000 |
|
|
7,000,000 |
|
|
|
4.82 |
|
|
|
|
|
$6.2500 |
|
|
1,050,000 |
|
|
|
4.80 |
|
|
|
|
|
$0.0010 |
|
|
950,000 |
|
|
|
– |
|
|
|
|
|
|
|
|
10,773,828 |
|
|
|
4.81 |
|
|
$ |
4.60 |
|
|