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Loans and Allowance for Loan Losses (ALL by Loan Classification) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | $ 10,243 | $ 8,275 | $ 5,860
All Other Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 10,087 | 8,275 |
All Other Loans [Member] | Performing [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 9,612 | 7,741 |
All Other Loans [Member] | Impaired Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 475 | 534 |
Purchased Credit Impaired Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 156 | 0 |
Commercial Real Estate [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 4,508 | 3,639 | 2,465
Commercial Real Estate [Member] | All Other Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 4,491 | 3,639 |
Commercial Real Estate [Member] | All Other Loans [Member] | Performing [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 4,491 | 3,639 |
Commercial Real Estate [Member] | All Other Loans [Member] | Impaired Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 0 | 0 |
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 17 | 0 |
Consumer Real Estate [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 2,576 | 1,789 | 1,596
Consumer Real Estate [Member] | All Other Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 2,502 | 1,789 |
Consumer Real Estate [Member] | All Other Loans [Member] | Performing [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 2,159 | 1,763 |
Consumer Real Estate [Member] | All Other Loans [Member] | Impaired Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 343 | 26 |
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 74 | 0 |
Construction and Land Development [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 1,127 | 795 | 521
Construction and Land Development [Member] | All Other Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 1,127 | 795 |
Construction and Land Development [Member] | All Other Loans [Member] | Performing [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 1,127 | 795 |
Construction and Land Development [Member] | All Other Loans [Member] | Impaired Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 0 | 0 |
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 0 | 0 |
Commercial and Industrial [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 1,957 | 1,746 | 1,062
Commercial and Industrial [Member] | All Other Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 1,898 | 1,746 |
Commercial and Industrial [Member] | All Other Loans [Member] | Performing [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 1,766 | 1,304 |
Commercial and Industrial [Member] | All Other Loans [Member] | Impaired Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 132 | 442 |
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 59 | 0 |
Consumer and Other [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 75 | 306 | $ 216
Consumer and Other [Member] | All Other Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 69 | 306 |
Consumer and Other [Member] | All Other Loans [Member] | Performing [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 69 | 240 |
Consumer and Other [Member] | All Other Loans [Member] | Impaired Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | 0 | 66 |
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for loan losses | $ 6 | $ 0 |

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