Note 1 - Description of the Business, Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Anti-dilutive Securities (Details) - shares |
12 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Antidilutive securities (in shares) | 10,759,906 | 1,981,098 |
| Warrant [Member] | ||
| Antidilutive securities (in shares) | 4,334 | 87,531 |
| Bridge Financing Warrants in Connection with Convertible Notes [Member[ | ||
| Antidilutive securities (in shares) | 25,003 | 25,003 |
| Share-Based Payment Arrangement, Option [Member] | ||
| Antidilutive securities (in shares) | 13,500 | 243,483 |
| Series A Warrants [Member] | ||
| Antidilutive securities (in shares) | 55,500 | 1,533,096 |
| Series B Warrants [Member] | ||
| Antidilutive securities (in shares) | 1,477,596 | 0 |
| Series C Warrants [Member] | ||
| Antidilutive securities (in shares) | 9,003,332 | 0 |
| Representative's Warrants [Member] | ||
| Antidilutive securities (in shares) | 180,641 | 91,985 |