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Note 7 - Restricted Stock (Tables) | 12 Months Ended
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Mar. 31, 2022
Notes Tables |
Schedule of Nonvested Share Activity [Table Text Block] |
|  | Employee Plan Number of Shares |  |  | Director Plan Number of Shares |  |  | Both Plans Number of Shares |
Non-vested restricted stock outstanding at March 31, 2021 |  |  | 98 |  |  |  | 62 |  |  |  | 160 |
Restricted stock granted |  |  | 676 |  |  |  | 44 |  |  |  | 720 |
Restricted stock vested |  |  | (69 | ) |  |  | (30 | ) |  |  | (99 | )
Restricted stock forfeited or expired |  |  | (3 | ) |  |  | (7 | ) |  |  | (10 | )
Non-vested restricted stock outstanding at March 31, 2022 |  |  | 702 |  |  |  | 69 |  |  |  | 771 |

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- Definition Tabular disclosure of the changes in outstanding nonvested 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)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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