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, 2025 |
Mar. 31, 2024 |
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| Antidilutive securities (in shares) | 1,981,098 | 162,767 | ||
| Warrant [Member] | ||||
| Antidilutive securities (in shares) | 87,531 | 4,334 | ||
| Convertible Debt Securities [Member] | ||||
| Antidilutive securities (in shares) | [1] | 0 | 33,250 | |
| Convertible Notes to Warrant [Member] | ||||
| Antidilutive securities (in shares) | 25,003 | 25,003 | ||
| Share-Based Payment Arrangement, Option [Member] | ||||
| Antidilutive securities (in shares) | 243,483 | 100,180 | ||
| Series A Warrants [Member] | ||||
| Antidilutive securities (in shares) | 1,533,096 | 0 | ||
| Representative's Warrants [Member] | ||||
| Antidilutive securities (in shares) | 91,985 | 0 | ||
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