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Note 6 - Accumulated Other Comprehensive Income (Tables) | 6 Months Ended
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Jun. 30, 2021
Notes Tables |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Unrealized gains/(losses) on available-for-sale securities (a) |
(Dollars in thousands) |  |  |  |
Balance as of March 31, 2021 |  | $ | 2,917 |
Other comprehensive income |  |  | 976 |
Balance at June 30, 2021 |  | $ | 3,893 |
Balance as of December 31, 2020 |  | $ | 4,284 |
Other comprehensive loss |  |  | (391 | )
Balance at June 30, 2021 |  | $ | 3,893 |
|  | Unrealized gains on available-for-sale securities (a) |
(Dollars in thousands) |  |  |  |
Balance as of March 31, 2020 |  | $ | (2,237 | )
Other comprehensive income |  |  | 5,998 |
Balance at June 30, 2020 |  | $ | 3,761 |
Balance as of December 31, 2019 |  | $ | 1,842 |
Other comprehensive income |  |  | 1,919 |
Balance at June 30, 2020 |  | $ | 3,761 |

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