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Fair Value (Financial instruments Measured at Fair Value) (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016 | Jun. 30, 2016
--- | --- | --- | ---
Securities available for sale: |  |  |
Total available for sale securities | $ 207,496 | $ 199,329 | $ 219,762
Impaired loans and foreclosed real estate: |  |  |
Foreclosed real estate | 11,196 | 9,532 | $ 10,606
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |  |
Securities available for sale: |  |  |
Total available for sale securities | 207,496 | 199,329 |
Recurring [Member] | Quoted Prices in Markets for Identical Assets (Level 1) [Member] |  |  |
Securities available for sale: |  |  |
Government-sponsored enterprise securities |  |  |
Mortgage-backed securities |  |  |
Corporate bonds |  |  |
Equity securities |  |  |
Total available for sale securities |  |  |
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |  |
Securities available for sale: |  |  |
Government-sponsored enterprise securities | 16,498 | 17,490 |
Mortgage-backed securities | 156,601 | 148,065 |
Corporate bonds | 34,397 | 33,600 |
Equity securities |  | 174 |
Total available for sale securities | 207,496 | 199,329 |
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |  |
Securities available for sale: |  |  |
Government-sponsored enterprise securities |  |  |
Mortgage-backed securities |  |  |
Corporate bonds |  |  |
Equity securities |  |  |
Total available for sale securities |  |  |
Recurring [Member] | Fair Value [Member] |  |  |
Securities available for sale: |  |  |
Government-sponsored enterprise securities | 16,498 | 17,490 |
Mortgage-backed securities | 156,601 | 148,065 |
Corporate bonds | 34,397 | 33,600 |
Equity securities |  | 174 |
Total available for sale securities | 207,496 | 199,329 |
Nonrecurring [Member] | Quoted Prices in Markets for Identical Assets (Level 1) [Member] |  |  |
Impaired loans and foreclosed real estate: |  |  |
Impaired loans |  |  |
Foreclosed real estate |  |  |
Nonrecurring [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |  |
Impaired loans and foreclosed real estate: |  |  |
Impaired loans |  |  |
Foreclosed real estate |  |  |
Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |  |
Impaired loans and foreclosed real estate: |  |  |
Impaired loans | 15,848 | 12,284 |
Foreclosed real estate | 11,196 | 9,532 |
Nonrecurring [Member] | Fair Value [Member] |  |  |
Impaired loans and foreclosed real estate: |  |  |
Impaired loans | 15,848 | 12,284 |
Foreclosed real estate | $ 11,196 | $ 9,532 |

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