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Basis of Presentation (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Cumulative effect adjustment from accumulated other comprehensive income to retained earnings |  |  | $ 1
Salaries and employee benefits | $ 4,835 | $ 4,366 |
Other noninterest expense | 1,354 | $ 1,297 |
ASU 2016-01 [Member] | Accumulated Other Comprehensive Income (Loss) [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Cumulative effect adjustment from accumulated other comprehensive income to retained earnings | 1 |  |
ASU 2016-01 [Member] | Retained Earnings [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Cumulative effect adjustment from accumulated other comprehensive income to retained earnings | (1) |  |
ASU 2017-07 [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Salaries and employee benefits | 47 |  |
Other noninterest expense | $ (47) |  |

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