Note 18 – Share Based Awards (Tables)
|
9 Months Ended |
Jan. 31, 2023 |
|---|
| Share-Based Payment Arrangement [Abstract] |
|
| [custom:ScheduleOfAssumptionsUsed1TableTextBlock] |
| |
|
|
2023 |
|
|
|
2022 |
|
| Exercise Price |
|
$ |
1.06
– 2.38
|
|
|
$ |
1.69 – 2.82
|
|
| Stock price on date of grant |
|
|
1.06
– 2.38
|
|
|
|
1.69 – 2.82
|
|
| Risk-free interest rate |
|
|
3.34
– 7.52% |
|
|
|
0.47 – 1.57% |
|
| Dividend yield |
|
|
— |
|
|
|
— |
|
| Expected term (years) |
|
|
8.25 |
|
|
|
3.75 – 10.00 |
|
| Volatility |
|
|
253.52
– 513.58% |
|
|
|
210.68 – 270.18% |
|
|
| Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block] |
|
|
Shares |
|
Weighted-Average
Exercise Price |
|
Weighted-Average
Remaining Contractual Term |
|
Aggregate
Intrinsic Value |
| Outstanding as of April
30, 2021 |
|
|
2,197,475 |
|
|
$ |
1.79 |
|
|
|
8.68 |
|
|
|
4,943,870 |
|
| Granted |
|
|
1,681,000 |
|
|
|
2.58 |
|
|
|
|
|
|
|
|
|
| Exercised |
|
|
(150,000 |
) |
|
|
2.49 |
|
|
|
|
|
|
|
|
|
| Forfeited
or expired |
|
|
(34,333 |
) |
|
|
2.11 |
|
|
|
|
|
|
|
|
|
| Outstanding as of April
30, 2022 |
|
|
3,694,142 |
|
|
|
2.17 |
|
|
|
8.56 |
|
|
|
1,407,545 |
|
| Granted |
|
|
598,000 |
|
|
|
1.94 |
|
|
|
|
|
|
|
|
|
| Exercised |
|
|
— |
|
|
|
— |
|
|
|
|
|
|
|
|
|
| Forfeited
or expired |
|
|
(127,000 |
) |
|
|
2.45 |
|
|
|
|
|
|
|
|
|
| Outstanding as of January 31, 2023 |
|
|
4,165,142 |
|
|
|
2.13 |
|
|
|
8.11 |
|
|
|
477,665 |
|
| Exercisable as of January
31, 2023 |
|
|
2,797,226 |
|
|
$ |
2.04 |
|
|
|
7.30 |
|
|
$ |
447,515 |
|
|
| Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] |
|
|
Shares |
|
Weighted Average Grant-Date Fair Value Per Share |
| Unvested and outstanding as of April 30, 2021 |
|
|
687,500 |
|
|
$ |
2.69 |
|
| Granted |
|
|
995,659 |
|
|
|
2.55 |
|
| Vested |
|
|
(599,484 |
) |
|
|
2.64 |
|
| Forfeited |
|
|
— |
|
|
|
— |
|
| Unvested and outstanding as of April 30, 2022 |
|
|
1,083,675 |
|
|
|
2.59 |
|
| Granted |
|
|
746,000 |
|
|
|
2.20 |
|
| Vested |
|
|
(823,707 |
) |
|
|
2.45 |
|
| Forfeited |
|
|
(21,127 |
) |
|
|
2.13 |
|
| Unvested and outstanding as of January 31, 2023 |
|
|
984,841 |
|
|
$ |
2.20 |
|
|
| Schedule of Deferred Compensation Arrangement with Individual, Share-Based Payments [Table Text Block] |
| |
|
|
|
|
|
|
|
|
| |
|
Three months ended January 31,
|
|
Nine months ended January 31,
|
| |
|
2023 |
|
2022 |
|
2023 |
|
2022 |
| Operations |
|
$ |
181,908 |
|
|
$ |
182,320 |
|
|
$ |
566,218 |
|
|
$ |
556,928 |
|
| Research and development |
|
|
170,579 |
|
|
|
143,279 |
|
|
|
524,874 |
|
|
|
284,511 |
|
| Sales and marketing |
|
|
120,733 |
|
|
|
112,975 |
|
|
|
390,076 |
|
|
|
271,808 |
|
| General and administrative |
|
|
315,471 |
|
|
|
343,549 |
|
|
|
1,309,790 |
|
|
|
952,899 |
|
| Total |
|
$ |
788,691 |
|
|
$ |
782,123 |
|
|
$ |
2,790,958 |
|
|
$ |
2,066,146 |
|
|