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Business Combination and Asset Purchase - Schedule of Pro-forma Results (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Summary of Operations |  |  |  |
Net Interest Income - Before Provision for Loan Losses | $ 16,229 | $ 15,484 | $ 32,032 | $ 30,478
Provision for Loan Losses | 641 | 1,570 | 2,342 | 3,001
Net Interest Income After Provision for Loan Losses | 15,588 | 13,914 | 29,690 | 27,477
Noninterest Income | 4,069 | 3,421 | 9,228 | 6,549
Noninterest Expense | 12,209 | 11,151 | 25,130 | 22,604
Income Before Income Taxes | 7,448 | 6,184 | 13,788 | 11,422
Income Taxes | 1,543 | 1,166 | 2,674 | 2,166
Net Income | $ 5,905 | $ 5,018 | $ 11,114 | $ 9,256
Basic and Diluted Earnings Per Share | $ 0.52 | $ 0.45 | $ 0.99 | $ 0.83

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