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Investment securities - Restricted Investment In Stock (Details) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2018 USD ($) shares | Dec. 31, 2017 USD ($)
Other-than-temporary impairments recognized | $ 0 |
Value of common stock | $ 14,798 | $ 14,793
Visa Class A stock |  |
Conversion ratio of common stock | 1.6298 |
Visa Class B stock |  |
Shares held | shares | 44,982 |
Value of common stock | $ 0 |
Federal Home Loan Bank of Pittsburgh (FHLB) |  |
Value of common stock | 7,785 | $ 8,520
Atlantic Community Bankers Bank (ACBB) |  |
Value of common stock | $ 42 |

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