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Note 2 - Equity Compensation Plans and Capital Stock (Tables) | 12 Months Ended
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Mar. 31, 2022
Notes Tables |
Nonvested Restricted Stock Shares Activity [Table Text Block] |
|  |  |  |  |  | Weighted |
|  |  |  |  |  | Average Grant |
|  | Number of |  |  | Date Fair Value |
|  | Shares |  |  | Per Share |
Unvested at March 31, 2020 |  |  | 270,000 |  |  | $ | 6.37 |
Granted |  |  | 89,625 | (1) |  |  | 5.64 |
Vested |  |  | (20,000 | ) |  |  | 8.23 |
Unvested at March 31, 2021 |  |  | 339,625 |  |  | $ | 6.07 |
Granted |  |  | 10,190 |  |  |  | 12.56 |
Vested |  |  | (210,292 | ) |  |  | 6.46 |
Unvested at March 31, 2022 |  |  | 139,523 |  |  | $ | 5.96 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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