Note 6 - Stock-based Compensation - RSU and Restricted Stock Activity (Details) - Restricted Stock Units (RSUs) and Restricted Stock [Member] |
12 Months Ended |
|---|---|
|
Apr. 30, 2026
$ / shares
shares
| |
| Non-vested, shares (in shares) | shares | 0 |
| Non-vested, weighted average grant date fair value (in dollars per share) | $ / shares | $ 0 |
| Shares granted (in shares) | shares | 375,000 |
| Shares granted, weighted average grant date fair value (in dollars per share) | $ / shares | $ 2.77 |
| Non-vested, shares (in shares) | shares | 375,000 |
| Non-vested, weighted average grant date fair value (in dollars per share) | $ / shares | $ 2.77 |