STOCK OPTIONS AND WARRANTS (Tables)
|
12 Months Ended |
Apr. 30, 2023 |
| Share-Based Payment Arrangement [Abstract] |
|
| Schedule of assumptions for options |
| Schedule of assumptions for options |
|
|
|
|
|
|
| |
|
Years Ended April 30, |
|
| |
|
2023 |
|
|
2022 |
|
| Risk-free interest rate |
|
|
3.3% |
|
|
|
1.1% |
|
| Expected volatility |
|
|
133% |
|
|
|
129% |
|
| Expected term (years) |
|
|
3.5 |
|
|
|
2.7 |
|
| Expected dividend yield |
|
|
0.00% |
|
|
|
0.00% |
|
|
| Schedule of stock option activity |
| Schedule of 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 |
|
| Granted |
|
|
7,334 |
|
|
|
5.34 |
|
|
|
5.34 |
|
| Forfeited |
|
|
(7,767 |
) |
|
|
148.20 |
|
|
|
148.20 |
|
| Outstanding, April 30, 2022 |
|
|
40,900 |
|
|
|
53.05 |
|
|
|
53.05 |
|
| Granted |
|
|
251,002 |
|
|
|
2.97 |
|
|
|
2.97 |
|
| Forfeited |
|
|
(10,633 |
) |
|
|
90.65 |
|
|
|
90.65 |
|
| Outstanding, April 30, 2023 |
|
|
281,269 |
|
|
$ |
6.94 |
|
|
$ |
6.94 |
|
| Exercisable, April 30, 2023 |
|
|
281,269 |
|
|
$ |
6.94 |
|
|
$ |
– |
|
| Vested and expected to vest |
|
|
281,269 |
|
|
$ |
6.94 |
|
|
$ |
– |
|
|
| Schedule of unvested stock option activity |
| Schedule of unvested stock option activity |
|
|
|
|
|
|
| |
|
Options |
|
|
Weighted
Average
Grant Date
Fair Value
Per Share |
|
| |
|
|
|
|
|
|
| Unvested, April 30, 2021 |
|
|
4,000 |
|
|
$ |
10.05 |
|
| Granted |
|
|
7,334 |
|
|
|
5.34 |
|
| Vested |
|
|
(7,334 |
) |
|
|
9.46 |
|
| Forfeited |
|
|
– |
|
|
|
– |
|
| Unvested, April 30, 2022 |
|
|
4,000 |
|
|
|
2.50 |
|
| Granted |
|
|
251,002 |
|
|
|
2.97 |
|
| Vested |
|
|
(255,002 |
) |
|
|
2.96 |
|
| Forfeited |
|
|
– |
|
|
|
– |
|
| Unvested, April 30, 2023 |
|
|
– |
|
|
$ |
– |
|
|
| Schedule of options by exercise price |
| 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 |
|
| $ |
80.10 |
|
|
|
800 |
|
|
|
0.35 |
|
|
$ |
80.10 |
|
|
|
800 |
|
|
$ |
80.10 |
|
| $ |
102.45 |
|
|
|
333 |
|
|
|
0.08 |
|
|
$ |
102.45 |
|
|
|
333 |
|
|
$ |
102.45 |
|
| $ |
97.35 |
|
|
|
333 |
|
|
|
0.22 |
|
|
$ |
97.35 |
|
|
|
333 |
|
|
$ |
97.35 |
|
| $ |
74.25 |
|
|
|
6,000 |
|
|
|
0.53 |
|
|
$ |
74.25 |
|
|
|
6,000 |
|
|
$ |
74.25 |
|
| $ |
57.00 |
|
|
|
800 |
|
|
|
1.40 |
|
|
$ |
57.00 |
|
|
|
800 |
|
|
$ |
57.00 |
|
| $ |
60.60 |
|
|
|
667 |
|
|
|
0.50 |
|
|
$ |
60.60 |
|
|
|
667 |
|
|
$ |
60.60 |
|
| $ |
55.50 |
|
|
|
333 |
|
|
|
0.59 |
|
|
$ |
55.50 |
|
|
|
333 |
|
|
$ |
55.50 |
|
| $ |
51.00 |
|
|
|
333 |
|
|
|
0.72 |
|
|
$ |
51.00 |
|
|
|
333 |
|
|
$ |
51.00 |
|
| $ |
61.20 |
|
|
|
6,000 |
|
|
|
1.01 |
|
|
$ |
61.20 |
|
|
|
6,000 |
|
|
$ |
61.20 |
|
| $ |
36.00 |
|
|
|
667 |
|
|
|
1.00 |
|
|
$ |
36.00 |
|
|
|
667 |
|
|
$ |
36.00 |
|
| $ |
37.05 |
|
|
|
333 |
|
|
|
1.09 |
|
|
$ |
37.05 |
|
|
|
333 |
|
|
$ |
37.05 |
|
| $ |
15.75 |
|
|
|
333 |
|
|
|
1.22 |
|
|
$ |
15.75 |
|
|
|
333 |
|
|
$ |
15.75 |
|
| $ |
10.05 |
|
|
|
6,000 |
|
|
|
1.60 |
|
|
$ |
10.05 |
|
|
|
6,000 |
|
|
$ |
10.05 |
|
| $ |
26.55 |
|
|
|
667 |
|
|
|
1.50 |
|
|
$ |
26.55 |
|
|
|
667 |
|
|
$ |
26.55 |
|
| $ |
16.20 |
|
|
|
334 |
|
|
|
1.59 |
|
|
$ |
16.20 |
|
|
|
334 |
|
|
$ |
16.20 |
|
| $ |
3.19 |
|
|
|
334 |
|
|
|
1.72 |
|
|
$ |
3.19 |
|
|
|
334 |
|
|
$ |
3.19 |
|
| $ |
2.50 |
|
|
|
6,000 |
|
|
|
2.21 |
|
|
$ |
2.50 |
|
|
|
6,000 |
|
|
$ |
2.50 |
|
| $ |
2.29 |
|
|
|
668 |
|
|
|
2.00 |
|
|
$ |
2.29 |
|
|
|
668 |
|
|
$ |
2.29 |
|
| $ |
2.24 |
|
|
|
334 |
|
|
|
2.08 |
|
|
$ |
2.24 |
|
|
|
334 |
|
|
$ |
2.24 |
|
| $ |
2.97 |
|
|
|
250,000 |
|
|
|
9.55 |
|
|
$ |
2.97 |
|
|
|
250,000 |
|
|
$ |
2.97 |
|
| |
Total |
|
|
|
281,269 |
|
|
|
3.08 |
|
|
$ |
6.94 |
|
|
|
281,269 |
|
|
$ |
6.94 |
|
|
| Schedule of warrant activity |
| Schedule of warrant activity |
|
|
|
|
|
|
| |
|
Warrants |
|
|
Weighted
Average
Exercise Price
Per Share
|
|
| Outstanding, April 30, 2021 |
|
|
2,981 |
|
|
$ |
58.70 |
|
| Issued |
|
|
18,812,261 |
|
|
|
– |
|
| Exercised |
|
|
(8,041,414 |
) |
|
|
– |
|
| Expired |
|
|
(1,093 |
) |
|
|
– |
|
| Outstanding, April 30, 2022 |
|
|
10,772,735 |
|
|
|
4.59 |
|
| Issued |
|
|
– |
|
|
|
– |
|
| Exercised |
|
|
(880,000 |
) |
|
|
– |
|
| Expired |
|
|
(1,888 |
) |
|
|
– |
|
| Outstanding, April 30, 2023 |
|
|
9,890,847 |
|
|
|
4.99 |
|
| Exercisable, April 30, 2023 |
|
|
9,890,847 |
|
|
$ |
4.99 |
|
|
| Schedule of warrants outstanding and exercisable |
| Schedule of warrants outstanding and exercisable |
|
|
|
|
|
|
|
|
|
| Exercise Prices |
|
Number of
Warrant Shares
Exercisable at
April 30, 2023 |
|
|
Weighted
Average
Remaining
Contractual
Life (Years) |
|
|
Weighted
Average
Exercise Price Per Share |
|
| |
|
|
|
|
|
|
|
|
|
| $4.25 |
|
|
1,506,141 |
|
|
|
3.28 |
|
|
|
|
|
| $5.3125 |
|
|
264,706 |
|
|
|
3.28 |
|
|
|
|
|
| $5.00 |
|
|
7,000,000 |
|
|
|
3.32 |
|
|
|
|
|
| $6.25 |
|
|
1,050,000 |
|
|
|
3.31 |
|
|
|
|
|
| $0.001 |
|
|
70,000 |
|
|
|
– |
|
|
|
|
|
| |
|
|
9,890,847 |
|
|
|
3.31 |
|
|
$ |
4.99 |
|
|