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Fair Value Measurements (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016 | Sep. 30, 2016
--- | --- | --- | ---
Investment securities | $ 556,026 | $ 538,108 | $ 430,668
Loans held for sale | 25,980 | 51,629 |
Assets measured at a fair value on a recurring basis | 582,260 | 589,851 |
Liabilities measured at a fair value on a recurring basis | 60 | 747 |
Interest Rate Swap [Member] | Derivative Financial Instruments, Assets [Member] |  |  |
Derivative asset | 191 |  |
Derivative Financial Instruments, Liabilities [Member] | Interest Rate Swap [Member] |  |  |
Derivative liability | 24 | 692 |
Derivative Financial Instruments, Liabilities [Member] | Mortgage Banking Derivative [Member] |  |  |
Derivative liability | 36 | 55 |
US Agency Securities [Member] |  |  |
Investment securities | 177,918 | 106,142 |
Residential Mortgage Backed Securities [Member] |  |  |
Investment securities | 301,526 | 326,239 |
Loans held for sale | 25,980 | 51,629 |
Municipal Bonds [Member] |  |  |
Investment securities | 63,147 | 95,930 |
Corporate Bonds [Member] |  |  |
Investment securities | 13,217 | 9,579 |
Equity Securities [Member] |  |  |
Investment securities | 218 | 218 |
Mortgage Banking Derivative [Member] | Derivative Financial Instruments, Assets [Member] |  |  |
Derivative asset | 63 |  |
Assets measured at a fair value on a recurring basis |  | 114 |
Fair Value, Inputs, Level 2 [Member] |  |  |
Loans held for sale | 25,980 | 51,629 |
Assets measured at a fair value on a recurring basis | 580,479 | 588,019 |
Liabilities measured at a fair value on a recurring basis | 24 | 692 |
Fair Value, Inputs, Level 2 [Member] | Derivative Financial Instruments, Assets [Member] |  |  |
Derivative asset | 191 |  |
Fair Value, Inputs, Level 2 [Member] | Derivative Financial Instruments, Liabilities [Member] | Interest Rate Swap [Member] |  |  |
Derivative liability | 24 | 692 |
Fair Value, Inputs, Level 2 [Member] | US Agency Securities [Member] |  |  |
Investment securities | 177,918 | 106,142 |
Fair Value, Inputs, Level 2 [Member] | Residential Mortgage Backed Securities [Member] |  |  |
Investment securities | 301,526 | 326,239 |
Loans held for sale | 25,980 |  |
Fair Value, Inputs, Level 2 [Member] | Municipal Bonds [Member] |  |  |
Investment securities | 63,147 | 95,930 |
Fair Value, Inputs, Level 2 [Member] | Corporate Bonds [Member] |  |  |
Investment securities | 11,717 | 8,079 |
Fair Value, Inputs, Level 3 [Member] |  |  |
Assets measured at a fair value on a recurring basis | 1,781 | 1,832 |
Liabilities measured at a fair value on a recurring basis | 36 | 55 |
Fair Value, Inputs, Level 3 [Member] | Derivative Financial Instruments, Assets [Member] |  |  |
Derivative asset | 63 |  |
Fair Value, Inputs, Level 3 [Member] | Derivative Financial Instruments, Liabilities [Member] | Mortgage Banking Derivative [Member] |  |  |
Derivative liability | 36 | 55 |
Fair Value, Inputs, Level 3 [Member] | Corporate Bonds [Member] |  |  |
Investment securities | 1,500 | 1,500 |
Fair Value, Inputs, Level 3 [Member] | Equity Securities [Member] |  |  |
Investment securities | $ 218 | 218 |
Fair Value, Inputs, Level 3 [Member] | Mortgage Banking Derivative [Member] | Derivative Financial Instruments, Assets [Member] |  |  |
Derivative asset |  | $ 114 |

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