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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, 2017	Dec. 31, 2016
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	$ 389,388	$ 385,563
Loans held for Sale	8,583	5,517
Derivative financial instruments	583	662
Derivative financial instruments, carrying amount	(32)
Municipal Obligations Tax Exempt [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	180,571	161,662
Municipal Obligations Taxable [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	60,154	71,563
Agency mortgage-backed securities [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	113,759	108,376
Certificates of deposit [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	9,224	9,700
US Treasury Securities [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	5,014	6,015
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Loans held for Sale	8,583	5,517
Derivative financial instruments	583	662
Derivative financial instruments, carrying amount	(32)
Fair Value, Inputs, Level 1 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	5,337	7,123
Loans held for Sale
Derivative financial instruments
Derivative financial instruments, carrying amount
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Loans held for Sale
Derivative financial instruments
Derivative financial instruments, carrying amount
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | US Federal Agency Obligations [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Municipal Obligations Tax Exempt [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Municipal Obligations Taxable [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Agency mortgage-backed securities [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Certificates of deposit [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Common stocks [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	323	1,108
Fair Value, Inputs, Level 2 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	384,051	378,440
Loans held for Sale	8,583	5,517
Derivative financial instruments	583	662
Derivative financial instruments, carrying amount	(32)
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Loans held for Sale	8,583	5,517
Derivative financial instruments	583	662
Derivative financial instruments, carrying amount	(32)
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | US Federal Agency Obligations [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	20,343	27,139
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Municipal Obligations Tax Exempt [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	180,571	161,662
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Municipal Obligations Taxable [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	60,154	71,563
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Agency mortgage-backed securities [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	113,759	108,376
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Certificates of deposit [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	9,224	9,700
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Common stocks [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
Loans held for Sale
Derivative financial instruments
Derivative financial instruments, carrying amount
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Loans held for Sale
Derivative financial instruments
Derivative financial instruments, carrying amount
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | US Federal Agency Obligations [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Municipal Obligations Tax Exempt [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Municipal Obligations Taxable [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Agency mortgage-backed securities [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Certificates of deposit [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Common stocks [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	5,014	6,015
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value
US Federal Agency Obligations [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	20,343	27,139
Municipal Obligations Tax Exempt [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	180,571	161,662
Municipal Obligations Taxable [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	60,154	71,563
Agency mortgage-backed securities [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	113,759	108,376
Certificates of deposit [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	9,224	9,700
Common stocks [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available-for-sale, at fair value	$ 323	$ 1,108

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