Estimated Fair Value of Financial Instruments - Summary of Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Securities	$ 203,848us-gaap_AvailableForSaleSecurities	$ 217,572us-gaap_AvailableForSaleSecurities
Accrued interest payable	591	596
Carrying Value [Member]
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Cash and due from banks, Federal funds sold and interest bearing deposits in other banks	64,920	24,142
Securities	203,848	217,572
Restricted stock	5,741	5,741
Portfolio loans, net	907,606	912,609
Loans held for sale	4,652	10,483
Accrued interest receivable	3,611	3,635
Demand, savings and money market	614,040	594,747
Certificates of deposit	454,971	440,178
Short-term borrowings	637	10,611
Federal Home Loan Bank advances	46,974	54,321
Junior subordinated debentures	16,238	16,238
Accrued interest payable	591	596
Estimated Fair Value [Member]
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Cash and due from banks, Federal funds sold and interest bearing deposits in other banks	64,920	24,142
Securities	203,848	217,572
Portfolio loans, net	913,139	913,844
Loans held for sale	4,767	11,164
Accrued interest receivable	3,611	3,635
Demand, savings and money market	603,437	579,825
Certificates of deposit	456,812	441,786
Short-term borrowings	637	10,611
Federal Home Loan Bank advances	47,484	54,847
Junior subordinated debentures	22,963	22,452
Accrued interest payable	591	596
Quoted Market Prices in Active Markets (Level 1)
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Cash and due from banks, Federal funds sold and interest bearing deposits in other banks	64,920	24,142
Securities	0	0
Internal Models with Significant Observable Market Parameters (Level 2)
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Securities	203,848	217,572
Loans held for sale	4,767	11,164
Accrued interest receivable	913	921
Demand, savings and money market	603,437	579,825
Certificates of deposit	456,812	441,786
Short-term borrowings	637	10,611
Federal Home Loan Bank advances	47,484	54,847
Junior subordinated debentures	22,963	22,452
Accrued interest payable	0	0
Internal Models with Significant Unobservable Market Parameters (Level 3)
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Portfolio loans, net	913,139	913,844
Loans held for sale	0	0
Accrued interest receivable	2,698	2,714
Accrued interest payable	$ 591	$ 596

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-Name Accounting Standards Codification

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