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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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