Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Deferred Tax Assets
Allowance for losses on loans and other real estate owned	$ 3,185	$ 3,007
Deferred compensation	1,047	1,074
Unrealized loss on securities available for sale		3,898
Unfunded retirement benefits	263	192
Other real estate owned	65	159
Non-accrual interest	158	145
Write down of impaired investments	1,195	1,641
Other	341us-gaap_DeferredTaxAssetsOther	284us-gaap_DeferredTaxAssetsOther
Deferred Tax Assets, Gross, Total	6,254us-gaap_DeferredTaxAssetsGross	10,400us-gaap_DeferredTaxAssetsGross
Deferred Tax Liabilities
Unrealized gain on securities available for sale	3,866
Depreciation	572	713
Deferred loan origination costs	431	475
Branch acquisition costs and goodwill	517	357
Prepaid expenses	199	235
Other	3us-gaap_DeferredTaxLiabilitiesOther	11us-gaap_DeferredTaxLiabilitiesOther
Deferred Tax Liabilities, Gross, Total	$ 5,588us-gaap_DeferredIncomeTaxLiabilities	$ 1,791us-gaap_DeferredIncomeTaxLiabilities

Deferred Tax Assets, Interest on Nonaccrual Loans

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Amount of deferred tax liability attributable to taxable temporary differences.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from postretirement benefits.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from estimated impairment losses.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the provision for loan losses.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from unrealized losses on available-for-sale securities.

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Amount of deferred tax liability attributable to taxable temporary differences from financing arrangements.

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Amount of deferred tax liability attributable to taxable temporary differences from investments (excludes investments in subsidiaries and equity method investments).

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Amount of deferred tax liability attributable to taxable temporary differences not separately disclosed.

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Amount of deferred tax consequences attributable to taxable temporary differences derived from prepaid expenses.

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Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

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