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Goodwill and Intangibles - Schedule of Amortizable Intangibles Included in Other Assets on Balance Sheet (Detail) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
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Finite Lived Intangible Assets [Line Items] |  |
Amortizable Intangibles | $ 3,022 | $ 3,718
Customer Based [Member] | MoneyWise Payroll [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Amortizable Intangibles | 394 | 541
Customer Based [Member] | Hammond Insurance [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Amortizable Intangibles | 350 | 375
Customer Based [Member] | LenderSelect [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Amortizable Intangibles | 648 | 720
Core Deposits [Member] | River Bancorp, Inc. [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Amortizable Intangibles | 94 | 211
Core Deposits [Member] | Virginia Community Bankshares, Inc [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Amortizable Intangibles | 1,444 | 1,690
Other [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Amortizable Intangibles | $ 92 | $ 181

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