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Fair Value Measurements and Fair Value of Financial Instruments (Details) - Schedule of Fair Value on a recurring basis - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | $ 435,284 | $ 353,290
Derivatives | 798 | 88
Assets: Available-for-sale, Fair Value | 436,082 | 353,378
Federal Agency Obligations [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 56,022 | 52,837
Residential Mortgage Backed Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 181,891 | 72,497
Commercial Mortgage Backed Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 4,054 | 4,209
US States and Political Subdivisions Debt Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 131,128 | 150,605
Trust Preferred Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 4,671 | 5,666
Corporate Bonds And Notes [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 29,693 | 36,928
Asset-backed Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 12,050 | 14,583
Certificates of Deposit [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 625 | 983
Equity Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 11,728 | 11,710
Other Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 3,422 | 3,272
Fair Value, Inputs, Level 1 [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 15,150 | 14,982
Derivatives |  |
Assets: Available-for-sale, Fair Value | 15,150 | 14,982
Fair Value, Inputs, Level 1 [Member] | Federal Agency Obligations [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 1 [Member] | Residential Mortgage Backed Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 1 [Member] | Commercial Mortgage Backed Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 1 [Member] | US States and Political Subdivisions Debt Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 1 [Member] | Trust Preferred Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 1 [Member] | Corporate Bonds And Notes [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 1 [Member] | Asset-backed Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 1 [Member] | Certificate Of Deposit [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  | 11,710
Fair Value, Inputs, Level 1 [Member] | Other Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  | 3,272
Fair Value, Inputs, Level 2 [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 410,502 | 320,090
Derivatives | 798 | 88
Assets: Available-for-sale, Fair Value | 411,300 | 320,178
Fair Value, Inputs, Level 2 [Member] | Federal Agency Obligations [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 56,022 | 52,837
Fair Value, Inputs, Level 2 [Member] | Residential Mortgage Backed Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 181,891 | 72,497
Fair Value, Inputs, Level 2 [Member] | Commercial Mortgage Backed Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 4,054 | 4,209
Fair Value, Inputs, Level 2 [Member] | US States and Political Subdivisions Debt Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 121,496 | 132,387
Fair Value, Inputs, Level 2 [Member] | Trust Preferred Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 4,671 | 5,666
Fair Value, Inputs, Level 2 [Member] | Corporate Bonds And Notes [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 29,693 | 36,928
Fair Value, Inputs, Level 2 [Member] | Asset-backed Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 12,050 | 14,583
Fair Value, Inputs, Level 2 [Member] | Certificate Of Deposit [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 625 | 983
Fair Value, Inputs, Level 2 [Member] | Equity Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 11,728 |
Fair Value, Inputs, Level 2 [Member] | Other Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 3,422 |
Fair Value, Inputs, Level 3 [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 9,632 | 18,218
Derivatives |  |
Assets: Available-for-sale, Fair Value | 9,632 | 18,218
Fair Value, Inputs, Level 3 [Member] | Federal Agency Obligations [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 3 [Member] | Residential Mortgage Backed Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 3 [Member] | Commercial Mortgage Backed Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 3 [Member] | US States and Political Subdivisions Debt Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value | 9,632 | 18,218
Fair Value, Inputs, Level 3 [Member] | Trust Preferred Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 3 [Member] | Corporate Bonds And Notes [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 3 [Member] | Asset-backed Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 3 [Member] | Certificate Of Deposit [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 3 [Member] | Equity Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |
Fair Value, Inputs, Level 3 [Member] | Other Securities [Member] |  |
Available-for-sale: |  |
Investment securities: Available-for-sale, Fair Value |  |

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