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Employee and Director Benefit Programs (Details 2) - USD ($) | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
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12. Employee and Director Benefit Programs |  |  |
Benefit obligation at beginning of period | $ 5,011,000 | $ 4,870,000 | $ 4,700
Fair value of plan assets | $ 0 | $ 0 |

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