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Acquired Credit Impaired Loans, Major Classifications of Acquired Credit Impaired Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | $ 1,207,134 | $ 1,198,623
Loans, gross | 1,203,008 | 1,194,577
Financial Asset Acquired with Credit Deterioration [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 10,361 | 10,802
Loans, gross | 10,354 | 10,802
Financial Asset Acquired with Credit Deterioration [Member] | Commercial and industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 605 | 922
Financial Asset Acquired with Credit Deterioration [Member] | Commercial, secured by real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 6,219 | 6,315
Financial Asset Acquired with Credit Deterioration [Member] | Residential real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 3,193 | 3,229
Financial Asset Acquired with Credit Deterioration [Member] | Other loans, including deposit overdrafts [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 344 | 336
First Capital Bancshares, Inc. [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 1,720 | 1,742
Loans, gross | 1,720 | 1,742
First Capital Bancshares, Inc. [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Commercial and industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 11 | 13
First Capital Bancshares, Inc. [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Commercial, secured by real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 809 | 818
First Capital Bancshares, Inc. [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Residential real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 900 | 911
First Capital Bancshares, Inc. [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Other loans, including deposit overdrafts [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 0 | 0
Eaton National Bank & Trust Co. [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 2,851 | 3,170
Loans, gross | 2,851 | 3,170
Eaton National Bank & Trust Co. [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Commercial and industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 229 | 503
Eaton National Bank & Trust Co. [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Commercial, secured by real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 1,513 | 1,547
Eaton National Bank & Trust Co. [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Residential real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 765 | 784
Eaton National Bank & Trust Co. [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Other loans, including deposit overdrafts [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 344 | 336
BNB Bancorp, Inc [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 1,527 | 1,554
Loans, gross | 1,527 | 1,554
BNB Bancorp, Inc [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Commercial and industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 0 | 0
BNB Bancorp, Inc [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Commercial, secured by real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 1,375 | 1,396
BNB Bancorp, Inc [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Residential real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 152 | 158
BNB Bancorp, Inc [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Other loans, including deposit overdrafts [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 0 | 0
Columbus First Bancorp, Inc. [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 4,263 | 4,336
Loans, gross | 4,256 | 4,336
Columbus First Bancorp, Inc. [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Commercial and industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 365 | 406
Columbus First Bancorp, Inc. [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Commercial, secured by real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 2,522 | 2,554
Columbus First Bancorp, Inc. [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Residential real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | 1,376 | 1,376
Columbus First Bancorp, Inc. [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Other loans, including deposit overdrafts [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans gross | $ 0 | $ 0

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