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Note 1 - Description of the Business, Basis of Presentation and Summary of Significant Accounting Policies - 10-Q (Tables) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2025 | Mar. 31, 2025
Notes Tables |  |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] |
|  | June 30, |
|  |  |  |  |  | 2024 |
|  | 2025 |  |  | (as revised) |
Equity based warrants to purchase common shares |  |  | 87,531 |  |  |  | 4,334 |
Convertible Notes - common shares (1) |  |  | - |  |  |  | 33,250 |
Convertible Notes - equity-based warrants to purchase common shares |  |  | 25,003 |  |  |  | 25,003 |
Stock options granted under Company's incentive plan |  |  | 248,483 |  |  |  | 216,483 |
Series A Warrants |  |  | 1,533,096 |  |  |  | - |
Representative Warrants |  |  | 91,985 |  |  |  | - |
Total potentially dilutive securities |  |  | 1,986,098 |  |  |  | 279,070 |
|  | March 31, |
|  |  |  |  |  | 2024 |
|  | 2025 |  |  | (as revised) |
Equity based warrants to purchase common shares |  |  | 87,531 |  |  |  | 4,334 |
Convertible Notes - common shares (1) |  |  | - |  |  |  | 33,250 |
Convertible Notes - equity-based warrants to purchase common shares |  |  | 25,003 |  |  |  | 25,003 |
Stock options granted under Company's incentive plan |  |  | 243,483 |  |  |  | 100,180 |
Series A Warrants |  |  | 1,533,096 |  |  |  | - |
Representative Warrants |  |  | 91,985 |  |  |  | - |
Total potentially dilutive securities |  |  | 1,981,098 |  |  |  | 162,767 |
Schedule of Error Corrections and Prior Period Adjustments [Table Text Block] |
|  | Three Months Ended June 30, 2024 |
|  | Originally Filed |  |  | Adjusted for 1-for-20 Reverse Stock Split |  |  | Correction |  |  | As Revised |
Net Loss (in thousands) |  | $ | (2,699 | ) |  | $ | - |  |  | $ | - |  |  | $ | (2,699 | )
Loss per share - basic and diluted |  | $ | (0.14 | ) |  | $ | (2.85 | ) |  | $ | 0.65 |  |  | $ | (2.20 | )
Weighted average shares outstanding - basic and diluted |  |  | 18,902,248 |  |  |  | 945,382 |  |  |  | 280,041 |  |  |  | 1,225,423 |
|  | Three Months Ended June 30, 2024 |
|  | Originally Filed |  |  | Adjusted for 1-for-20 Reverse Stock Split |  |  | Correction |  |  | As Revised |
Equity based warrants to purchase common shares |  |  | 5,344,569 |  |  |  | 267,231 |  |  |  | (262,897 | ) |  |  | 4,334 |
Convertible Notes - common shares |  |  | 665,000 |  |  |  | 33,250 |  |  |  | - |  |  |  | 33,250 |
Convertible Notes - equity-based warrants to purchase common shares |  |  | 500,000 |  |  |  | 25,003 |  |  |  | - |  |  |  | 25,003 |
Stock options granted under Company's incentive plan |  |  | 4,329,579 |  |  |  | 216,483 |  |  |  | - |  |  |  | 216,483 |
Total potentially dilutive securities |  |  | 10,839,148 |  |  |  | 541,967 |  |  |  | (262,897 | ) |  |  | 279,070 |
|  | Twelve Months Ended March 31, 2024 |
|  | Originally Filed |  |  | Adjusted for 1-for-20 Reverse Stock Split |  |  | Correction |  |  | As Revised |
Net Loss (in thousands) |  | $ | (15,426 | ) |  | $ | - |  |  | $ | - |  |  | $ | (15,426 | )
Loss per share - basic and diluted |  | $ | (1.05 | ) |  | $ | (21.09 | ) |  | $ | 6.27 |  |  | $ | (14.82 | )
Weighted average shares outstanding - basic and diluted |  |  | 14,626,282 |  |  |  | 731,372 |  |  |  | 309,348 |  |  |  | 1,040,720 |
|  | Twelve Months Ended March 31, 2024 |
|  | Originally Filed |  |  | Adjusted f or 1-for-20 Reverse Stock Split |  |  | Correction |  |  | As Revised |
Equity based warrants to purchase common shares |  |  | 5,744,569 |  |  |  | 287,231 |  |  |  | (282,897 | ) |  |  | 4,334 |
Convertible Notes - common shares |  |  | 665,000 |  |  |  | 33,250 |  |  |  | - |  |  |  | 33,250 |
Convertible Notes - equity-based warrants to purchase common shares |  |  | 500,000 |  |  |  | 25,003 |  |  |  | - |  |  |  | 25,003 |
Stock options granted under Company's incentive plan |  |  | 2,003,600 |  |  |  | 100,180 |  |  |  | - |  |  |  | 100,180 |
Total potentially dilutive securities |  |  | 8,913,169 |  |  |  | 445,664 |  |  |  | (282,897 | ) |  |  | 162,767 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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