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Securities (Details Textual) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 USD ($) Securities | Sep. 30, 2017 USD ($) | Sep. 30, 2018 USD ($) Securities | Sep. 30, 2017 USD ($)
Schedule Of Available For Sale Securities [Line Items] |  |  |  |
Proceeds from sales of securities available for sale | $ 4,500 | $ 0 | $ 7,065 | $ 54,493
Gross gains realized | 1 | 0 | 7 | 730
Gross Losses realized | $ 28 | $ 0 | $ 31 | $ 731
Number of securities | Securities | 582 |  | 582 |
Number of securities on unrealized loss position | Securities | 386 |  | 386 |
ASU 2016-01 | Equity securities |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |
Unrealized gains recognized in income statement for securities |  |  | $ 35 |
Unrealized losses recognized in income statement for securities | $ 7 |  |  |

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