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Note 6 - Shareholders' Equity (Tables) | 12 Months Ended
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Mar. 31, 2021
Notes Tables |
Dividends Declared [Table Text Block] |
Declaration Date |  | Per Share Dividend |  | Record Date |  | Total Amount (In thousands) |  | Payment Date
May 4, 2020 |  | $0.28 |  | May 15, 2020 |  | $5,647 |  | May 22, 2020
July 20, 2020 |  | $0.28 |  | July 31, 2020 |  | $5,647 |  | August 7, 2020
October 26, 2020 |  | $0.28 |  | November 9, 2020 |  | $5,676 |  | November 20, 2020
January 19, 2021 |  | $0.28 |  | February 1, 2021 |  | $5,676 |  | February 12, 2021

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- Definition Tabular disclosure of information related to dividends declared, including paid and unpaid dividends. + References No definition available. + Details
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