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Investment Securities (Unrealized Gain (Loss) on Investments) (Details) - USD ($) | Jun. 30, 2017 | Dec. 31, 2016
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Schedule of Investments [Line Items] |  |
Available-for-sale securities, Amortized Cost | $ 112,979,000 | $ 138,048,000
Available-for-sale securities, Unrealized Gains | 93,000 | 142,000
Available-for-sale securities, Unrealized Losses | 1,719,000 | 4,565,000
Available for sale Securities, Fair Value | 111,353,000 | 133,625,000
Held-to-maturity securities, Amortized Cost | 71,096,000 | 0
Held-to-maturity securities, Unrealized Gains | 216,000 |
Held-to-maturity securities, Unrealized Losses | 113,000 |
Held-to-maturity securities, Fair Value | 71,199,000 | 0
Available-for-sale securities and Held-to-maturity securities, Amortized Cost | 184,075,000 |
Available-for-sale securities and Held-to-maturity securities, Unrealized Gains | 309,000 |
Available-for-sale securities and Held-to-maturity securities, Unrealized Losses | 1,832,000 |
Available-for-sale securities and Held-to-maturity securities, Fair Value | 182,552,000 |
U.S. Treasury and U.S. government agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale securities, Amortized Cost | 42,629,000 | 48,520,000
Available-for-sale securities, Unrealized Gains |  | 34,000
Available-for-sale securities, Unrealized Losses | 858,000 | 1,542,000
Available for sale Securities, Fair Value | 41,771,000 | 47,012,000
Held-to-maturity securities, Amortized Cost | 10,984,000 |
Held-to-maturity securities, Unrealized Gains | 24,000 |
Held-to-maturity securities, Unrealized Losses | 5,000 |
Held-to-maturity securities, Fair Value | 11,003,000 |
Mortgage-backed U.S. Government Agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale securities, Amortized Cost | 28,543,000 | 26,181,000
Available-for-sale securities, Unrealized Gains | 3,000 | 17,000
Available-for-sale securities, Unrealized Losses | 307,000 | 579,000
Available for sale Securities, Fair Value | 28,239,000 | 25,619,000
Held-to-maturity securities, Amortized Cost | 51,248,000 |
Held-to-maturity securities, Unrealized Gains | 72,000 |
Held-to-maturity securities, Unrealized Losses | 99,000 |
Held-to-maturity securities, Fair Value | 51,221,000 |
State and political subdivision obligations [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale securities, Amortized Cost | 39,539,000 | 61,079,000
Available-for-sale securities, Unrealized Gains | 70,000 | 91,000
Available-for-sale securities, Unrealized Losses | 514,000 | 2,332,000
Available for sale Securities, Fair Value | 39,095,000 | 58,838,000
Held-to-maturity securities, Amortized Cost | 8,864,000 |
Held-to-maturity securities, Unrealized Gains | 120,000 |
Held-to-maturity securities, Unrealized Losses | 9,000 |
Held-to-maturity securities, Fair Value | 8,975,000 |
Corporate debt securities [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale securities, Amortized Cost | 1,100,000 | 1,100,000
Available-for-sale securities, Unrealized Gains | 5,000 |
Available for sale Securities, Fair Value | 1,105,000 | 1,100,000
Equity Securities [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale securities, Amortized Cost | 1,168,000 | 1,168,000
Available-for-sale securities, Unrealized Gains | 15,000 |
Available-for-sale securities, Unrealized Losses | 40,000 | 112,000
Available for sale Securities, Fair Value | $ 1,143,000 | $ 1,056,000

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