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Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | $ 393,940 | $ 374,343
Gross Unrealized Gains | 4,268 | 2,263
Gross Unrealized Losses | (2,973) | (6,611)
Fair Value | 395,235 | 369,995
Corporate bonds |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 1,238 | 1,343
Gross Unrealized Gains | 7 | 4
Gross Unrealized Losses | (4) | (8)
Fair Value | 1,241 | 1,339
Small Business Administration |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 15,429 | 17,236
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (329) | (530)
Fair Value | 15,100 | 16,706
U.S. Treasury and U.S. government sponsored entities |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 8,728 | 5,970
Gross Unrealized Gains | 5 | 5
Gross Unrealized Losses | (25) | (54)
Fair Value | 8,708 | 5,921
State and political subdivisions |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 182,206 | 157,014
Gross Unrealized Gains | 3,127 | 1,049
Gross Unrealized Losses | (906) | (2,760)
Fair Value | 184,427 | 155,303
Mortgage-backed securities - residential |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 167,419 | 171,215
Gross Unrealized Gains | 921 | 1,019
Gross Unrealized Losses | (1,103) | (2,552)
Fair Value | 167,237 | 169,682
Collateralized mortgage obligations - residential |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 18,745 | 21,397
Gross Unrealized Gains | 0 | 1
Gross Unrealized Losses | (605) | (705)
Fair Value | 18,140 | 20,693
Equity securities |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 175 | 168
Gross Unrealized Gains | 208 | 185
Gross Unrealized Losses | (1) | (2)
Fair Value | $ 382 | $ 351

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