Note 9 - Share-based Compensation - Summary of Non-vested Options (Details) |
6 Months Ended |
|---|---|
|
Sep. 30, 2025
$ / shares
shares
| |
| Nonvested (in shares) | shares | 100,000 |
| Nonvested, Weighted average grant-date fair value (in dollars per share) | $ / shares | $ 0.56 |
| Granted (in shares) | shares | 475,000 |
| Granted, Weighted average grant-date fair value (in dollars per share) | $ / shares | $ 0.19 |
| Vested (in shares) | shares | (33,334) |
| Vested, Weighted average grant-date fair value (in dollars per share) | $ / shares | $ 0.97 |
| Forfeited (in shares) | shares | (50,000) |
| Forfeited, Weighted average grant-date fair value (in dollars per share) | $ / shares | $ 0.15 |
| Nonvested (in shares) | shares | 491,666 |
| Nonvested, Weighted average grant-date fair value (in dollars per share) | $ / shares | $ 0.2 |