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Note 6 - Accumulated Other Comprehensive Income - Changes in Accumulated Other Comprehensive Income (Loss) by Component, Net of Tax (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Balance |  | $ 144,670 | $ 132,687 | $ 143,810 | $ 137,775
Other comprehensive income (loss) | [1] |  |  |  | 1,919
Balance |  | 146,044 | 140,695 | 146,044 | 140,695
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member] |  |  |  |  |
Balance | [1] | 2,917 | (2,237) | 4,284 | 1,842
Other comprehensive income (loss) | [1] | 976 | 5,998 | (391) |
Balance | [1] | $ 3,893 | $ 3,761 | $ 3,893 | $ 3,761
[1] | All amounts are net of tax. Amounts in parentheses indicate debits to AOCI.

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