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Business Combination & Asset Purchase - Schedule of Pro-forma Results (Detail) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Summary of Operations |  |  |
Net Interest Income - Before Provision for Loan Losses | $ 78,064 | $ 74,378 | $ 70,313
Provision for Loan Losses | 3,445 | 6,893 | 1,400
Net Interest Income After Provision for Loan Losses | 74,619 | 67,485 | 68,913
Noninterest Income | 18,548 | 17,282 | 12,350
Noninterest Expense | 54,540 | 51,890 | 48,686
Income Before Income Taxes | 38,627 | 32,877 | 32,577
Income Taxes | 7,712 | 6,475 | 6,696
Net Income | $ 30,915 | $ 26,402 | $ 25,881
Basic and Diluted Earnings Per Share | $ 2.65 | $ 2.28 | $ 2.24

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