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Fair Value of Financial Instruments and Fair Value Measurements - Schedule of Fair Value, Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | $ 376,039 | $ 387,983
Loans held for Sale | 7,728 | 6,535
Assets: Derivative financial instruments | 680 | 395
Municipal Obligations, Tax Exempt [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 157,257 | 184,738
Municipal Obligations, Taxable [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 52,991 | 57,976
Agency Mortgage-backed Securities [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 140,979 | 117,555
Certificates of Deposit [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 7,780 | 9,224
Common Stocks [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  | 8
Level 1 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 1,943 | 1,998
Assets: Derivative financial instruments |  |
Level 2 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 374,096 | 385,985
Assets: Derivative financial instruments | 680 | 395
Level 3 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |
Assets: Derivative financial instruments |  |
Fair Value, Measurements, Recurring [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Loans held for Sale | 7,728 | 6,535
Assets: Derivative financial instruments | 680 | 395
Fair Value, Measurements, Recurring [Member] | Municipal Obligations, Tax Exempt [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 157,257 | 184,738
Fair Value, Measurements, Recurring [Member] | Municipal Obligations, Taxable [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 52,991 | 57,976
Fair Value, Measurements, Recurring [Member] | Agency Mortgage-backed Securities [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 140,979 | 117,555
Fair Value, Measurements, Recurring [Member] | Certificates of Deposit [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 7,780 | 9,224
Fair Value, Measurements, Recurring [Member] | Common Stocks [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  | 8
Fair Value, Measurements, Recurring [Member] | US Federal Agency Obligations [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 15,089 | 16,492
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Loans held for Sale |  |
Assets: Derivative financial instruments |  |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Municipal Obligations, Tax Exempt [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Municipal Obligations, Taxable [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Agency Mortgage-backed Securities [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Certificates of Deposit [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Common Stocks [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  | 8
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | US Federal Agency Obligations [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Loans held for Sale | 7,728 | 6,535
Assets: Derivative financial instruments | 680 | 395
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Municipal Obligations, Tax Exempt [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 157,257 | 184,738
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Municipal Obligations, Taxable [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 52,991 | 57,976
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Agency Mortgage-backed Securities [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 140,979 | 117,555
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Certificates of Deposit [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 7,780 | 9,224
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Common Stocks [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | US Federal Agency Obligations [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 15,089 | 16,492
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Loans held for Sale |  |
Assets: Derivative financial instruments |  |
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Municipal Obligations, Tax Exempt [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Municipal Obligations, Taxable [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Agency Mortgage-backed Securities [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Certificates of Deposit [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Common Stocks [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | US Federal Agency Obligations [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |
Fair Value, Measurements, Recurring [Member] | US Treasury Securities [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 1,943 | 1,990
Fair Value, Measurements, Recurring [Member] | US Treasury Securities [Member] | Level 1 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale | 1,943 | 1,990
Fair Value, Measurements, Recurring [Member] | US Treasury Securities [Member] | Level 2 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |
Fair Value, Measurements, Recurring [Member] | US Treasury Securities [Member] | Level 3 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities available for sale |  |

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