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Goodwill and Intangibles - Schedule of Components of Goodwill (Detail) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2021 | Jan. 31, 2021 | Dec. 31, 2020
Goodwill [Line Items] |  |  |  |
Goodwill | $ 27,098 |  | $ 19,892 | [1]
Charlottesville Branch [Member] |  |  |  |
Goodwill [Line Items] |  |  |  |
Year of acquisition | 2011 |  |  |
Goodwill | $ 366 |  | 366 |
River Bancorp, Inc. [Member] |  |  |  |
Goodwill [Line Items] |  |  |  |
Year of acquisition | 2016 |  |  |
Goodwill | $ 1,728 |  | 1,728 |
Mortgage Business [Member] |  |  |  |
Goodwill [Line Items] |  |  |  |
Year of acquisition | 2018 |  |  |
Goodwill | $ 600 |  | 600 |
Hammond Insurance Agency [Member] |  |  |  |
Goodwill [Line Items] |  |  |  |
Year of acquisition | 2019 |  |  |
Goodwill | $ 613 |  | 613 |
Virginia Community Bankshares, Inc. [Member] |  |  |  |
Goodwill [Line Items] |  |  |  |
Year of acquisition | 2019 |  |  |
Goodwill | $ 16,585 |  | $ 16,585 |
Bay Banks [Member] |  |  |  |
Goodwill [Line Items] |  |  |  |
Year of acquisition | 2021 |  |  |
Goodwill | $ 7,206 | $ 7,206 |  |
[1] | Derived from audited December 31, 2020 Consolidated Financial Statements.

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