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Investment Securities (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost, Due in one year or less	$ 2,001us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
Available for sale, Amortized Cost, Due after one year through five years	76,053us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
Available for sale, Amortized Cost, Due after five years through ten years	10,647us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost
Available for sale, Amortized Cost, Due after ten years	149,026us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost
Available for sale, Amortized Cost, Debt maturities	237,727us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
Available-for-sale securities, Amortized Cost	238,354us-gaap_AvailableForSaleSecuritiesAmortizedCost	235,579us-gaap_AvailableForSaleSecuritiesAmortizedCost
Available for sale, Estimated Fair Value, Due in one year or less	2,004us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
Available for sale, Estimated Fair Value, Due after one year through five years	76,191us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
Available for sale, Estimated Fair Value, Due after five years through ten years	10,782us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
Available for sale, Estimated Fair Value, Due after ten years	150,495us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
Available for sale, Estimated Fair Value, Debt maturities	239,472us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue
Available for sale, Estimated Fair Value, Total	240,111us-gaap_AvailableForSaleSecurities	236,108us-gaap_AvailableForSaleSecurities
Held to maturity securities, Amortized Cost, Due in one year or less	221us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount
Held to maturity securities, Amortized Cost, Due after one year through five years	711us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount
Held to maturity securities, Amortized Cost, Due after five years through ten years	403us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount
Held to maturity securities, Amortized Cost, Due after ten years	3,180us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount
Held to maturity securities, Amortized Cost, Debt maturities	4,515us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount
Held to maturity securities, Amortized Cost, Total	4,515us-gaap_HeldToMaturitySecurities	4,630us-gaap_HeldToMaturitySecurities
Held to maturity securities, Estimated Fair Value, Due in one year or less	222us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue
Held to maturity securities, Estimated Fair Value, Due after one year through five years	766us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
Held to maturity securities, Estimated Fair Value, Due after five years through ten years	461us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
Held to maturity securities, Estimated Fair Value, Due after ten years	3,167us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue
Held to maturity securities, Estimated Fair Value, Debt maturities	4,616us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue
Held-to-maturity securities, Estimated Fair Value, Total	4,616us-gaap_HeldToMaturitySecuritiesFairValue	4,694us-gaap_HeldToMaturitySecuritiesFairValue
Equity [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	627us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquitySecuritiesMember	624us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquitySecuritiesMember
Available for sale, Estimated Fair Value, Total	639us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquitySecuritiesMember	630us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquitySecuritiesMember
Held to maturity securities, Amortized Cost, Total	0us-gaap_HeldToMaturitySecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquitySecuritiesMember
Held-to-maturity securities, Estimated Fair Value, Total	$ 0us-gaap_HeldToMaturitySecuritiesFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquitySecuritiesMember

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