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Note 10 - Stockholders' Equity (Tables) | 9 Months Ended
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Dec. 31, 2024
Notes Tables |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  |  |  |  |  | Weighted- |
|  |  |  |  |  | Average |
|  |  |  |  |  | Exercise |
|  | Number of |  |  | Price per |
|  | Shares |  |  | Share |
Outstanding as of March 31, 2024 |  |  | 140,000 |  |  | $ | 1.87 |
Granted |  |  | - |  |  | $ | - |
Exercised |  |  | - |  |  | $ | - |
Forfeited or expired |  |  | (15,000 | ) |  | $ | 4.20 |
Outstanding as of December 31, 2024 |  |  | 125,000 |  |  | $ | 1.59 |
Exercisable as of December 31, 2024 |  |  | 115,000 |  |  | $ | 1.31 |
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] |
|  | Number of |
|  | Shares |
Outstanding as of March 31, 2024 |  |  | 182,500 |
Granted |  |  | 50,000 |
Vested |  |  | (100,417 | )
Outstanding as of December 31, 2024 |  |  | 132,083 |
|  | Number of |
|  | Shares |
Nonvested as of March 31, 2024 |  |  | 591,560 |
Granted |  |  | 339,467 |
Vested |  |  | (228,335 | )
Forfeited or expired |  |  | (13,250 | )
Nonvested as of December 31, 2024 |  |  | 689,442 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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