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Note 6 - Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2023
Notes Tables |
Dividends Declared [Table Text Block] |
Declaration date |  | Dividend |  |  | Total paid |
March 1, 2022 |  | $ | 0.06 |  |  | $ | 822 |
June 1, 2022 |  |  | 0.06 |  |  |  | 827 |
September 1, 2022 |  |  | 0.06 |  |  |  | 829 |
December 1, 2022 |  |  | 0.06 |  |  |  | 833 |
March 1, 2023 |  |  | 0.06 |  |  |  | 833 |

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