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Security Types (Details) - USD ($) $ in Thousands | Sep. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value | $ 3,080 | $ 5,000
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value | 20,988 | 27,972
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value | 51,464 | 45,068
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | 174,024 | 163,647
Available-for-sale Securities, Fair Value, Total | 249,556 | 241,687
Available For Sale Securities, Gross Unrealized Gains | 5,591 | 4,374
Available For Sale Securities, Gross Unrealized Losses | 160 | 1,305
Available-for-sale Securities, Amortized Cost Basis | 244,125 | 238,618
US Government and Government Agencies and Authorities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value | 3,080 | 5,000
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value | 17,889 | 25,852
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value | 20,856 | 19,463
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | 0 | 9,770
Available-for-sale Securities, Fair Value, Total | 41,825 | 60,085
Available For Sale Securities, Gross Unrealized Gains | 634 | 384
Available For Sale Securities, Gross Unrealized Losses | 40 | 518
Available-for-sale Securities, Amortized Cost Basis | 41,231 | 60,219
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value | 0 | 0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value | 1,109 | 1,623
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value | 18,820 | 13,511
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | 113,336 | 95,820
Available-for-sale Securities, Fair Value, Total | 133,265 | 110,954
Available For Sale Securities, Gross Unrealized Gains | 1,967 | 968
Available For Sale Securities, Gross Unrealized Losses | 75 | 780
Available-for-sale Securities, Amortized Cost Basis | 131,373 | 110,766
US States and Political Subdivisions Debt Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value | 0 | 0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value | 1,990 | 497
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value | 11,788 | 12,094
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | 60,688 | 58,057
Available-for-sale Securities, Fair Value, Total | 74,466 | 70,648
Available For Sale Securities, Gross Unrealized Gains | 2,990 | 3,022
Available For Sale Securities, Gross Unrealized Losses | 45 | 7
Available-for-sale Securities, Amortized Cost Basis | $ 71,521 | $ 67,633

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