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Business Acquisitions - Assets and Liabilities Acquired (Details) - USD ($) $ / shares in Units, $ in Thousands | May 01, 2019 | Mar. 31, 2020 | Dec. 31, 2019
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Assets acquired at fair value: |  |  |
Amount of goodwill resulting from acquisition |  | $ 16,477 | $ 16,477
LBC Bancshares, Inc |  |  |
Purchase price consideration (dollars in thousands): |  |  |
Shares of CBAN common stock issued to LBC shareholders as of May 1, 2019 | 1,053,875 |  |
Market Price of CBAN Common Stock on May 1, 2019 (in dollars per share) | $ 17.75 |  |
Estimated fair value of CBAN common stock issued | $ 18,706 |  |
Cash consideration paid | 15,315 |  |
Total purchase price for PFB branch acquisition | 34,021 |  |
Assets acquired at fair value: |  |  |
Cash and cash equivalents | 15,678 |  |
Investments securities available for sale | 49,172 |  |
Investments securities held to maturity | 1,766 |  |
Restricted investments | 479 |  |
Loans | 130,568 |  |
Premises and equipment | 3,009 |  |
Core deposit intangible | 3,100 |  |
Other real estate | 243 |  |
Prepaid and other assets | 6,143 |  |
Total fair value of assets acquired | 210,158 |  |
Deposits | (189,896) |  |
FHLB advances | (1,000) |  |
Payables and other liabilities | (975) |  |
Total fair value of liabilities assumed | (191,871) |  |
Net assets acquired at fair value: | 18,287 |  |
Amount of goodwill resulting from acquisition | 15,734 |  |
PFB Mortgage |  |  |
Purchase price consideration (dollars in thousands): |  |  |
Cash consideration paid | 833 |  |
Total purchase price for PFB branch acquisition | 833 |  |
Assets acquired at fair value: |  |  |
Premises and equipment | 78 |  |
Premium on loan commitments | 209 |  |
Other assets | 5 |  |
Total fair value of assets acquired | 292 |  |
Total fair value of liabilities assumed | 0 |  |
Net assets acquired at fair value: | 292 |  |
Amount of goodwill resulting from acquisition | $ 541 |  |

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