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Fair Value (Financial instruments Measured at Fair Value) (Details) - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015 | Mar. 31, 2015
--- | --- | --- | ---
Securities available for sale: |  |  |
Securities available for sale | $ 247,140 | $ 165,614 | $ 172,319
Fair Value [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Securities available for sale: |  |  |
Securities available for sale | $ 247,140 | $ 165,614 |
Recurring [Member] | Quoted Prices in Market for Identical Assets (Level 1) [Member] |  |  |
Securities available for sale: |  |  |
Government-sponsored enterprise securities |  |  |
Mortgage-backed securities |  |  |
Corporate bonds |  |  |
Equity securities |  |  |
Securities available for sale |  |  |
Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Securities available for sale: |  |  |
Government-sponsored enterprise securities | $ 38,636 | $ 18,972 |
Mortgage-backed securities | 174,579 | 121,553 |
Corporate bonds | 33,798 | 24,946 |
Equity securities | 127 | 143 |
Securities available for sale | $ 247,140 | $ 165,614 |
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |  |
Securities available for sale: |  |  |
Government-sponsored enterprise securities |  |  |
Mortgage-backed securities |  |  |
Corporate bonds |  |  |
Equity securities |  |  |
Securities available for sale |  |  |
Recurring [Member] | Fair Value [Member] |  |  |
Securities available for sale: |  |  |
Government-sponsored enterprise securities | $ 38,636 | $ 18,972 |
Mortgage-backed securities | 174,579 | 121,553 |
Corporate bonds | 33,798 | 24,946 |
Equity securities | 127 | 143 |
Securities available for sale | $ 247,140 | $ 165,614 |
Nonrecurring [Member] | Quoted Prices in Market for Identical Assets (Level 1) [Member] |  |  |
Securities available for sale: |  |  |
Impaired loans - covered |  |  |
Impaired loans - non-covered |  |  |
Other real estate - covered |  |  |
Other real estate - non-covered |  |  |
Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Securities available for sale: |  |  |
Impaired loans - covered |  |  |
Impaired loans - non-covered |  |  |
Other real estate - covered |  |  |
Other real estate - non-covered |  |  |
Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |  |
Securities available for sale: |  |  |
Impaired loans - covered | $ 2,093 | $ 2,588 |
Impaired loans - non-covered | 18,478 | 18,057 |
Other real estate - covered | 1,569 | 806 |
Other real estate - non-covered | 8,767 | 9,188 |
Nonrecurring [Member] | Fair Value [Member] |  |  |
Securities available for sale: |  |  |
Impaired loans - covered | 2,093 | 2,588 |
Impaired loans - non-covered | 18,478 | 18,057 |
Other real estate - covered | 1,569 | 806 |
Other real estate - non-covered | $ 8,767 | $ 9,188 |

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