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Business Combination - Pro forma (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Unaudited pro forma information |  |
After tax merger related expenses | $ 2,760 |
After tax merger related expenses per share (in US$ per share) | $ (0.75) |
Total revenues (net interest income plus noninterest income) |  | $ 120,173
Net income |  | $ 18,261
Net income per share, basic and diluted |  | $ 4.99
Peoples Bankshares, Incorporated (Peoples) |  |
Unaudited pro forma information |  |
After tax merger related expenses | $ 2,110 |

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