Nature of Banking Activities and Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Principles of Consolidation	Principles of Consolidation The Company owns 100% of Bank of Clarke County (the “Bank”) and Eagle Financial Statutory Trust II. The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany accounts and transactions between the Company and the Bank have been eliminated. Eagle Financial Statutory Trust II is accounted for under the provisions of GAAP. The subordinated debt of Eagle Financial Statutory Trust II is reflected as a liability of the Company.
Trust Assets	Trust Assets Securities and other property held by the Eagle Investment Group in a fiduciary or agency capacity are not assets of the Company and are not included in the accompanying consolidated financial statements.
Cash and Cash Equivalents	Cash and Cash Equivalents For purposes of reporting cash flows, cash and cash equivalents include cash on hand, amounts due from banks, federal funds sold, and interest bearing deposits. Generally, federal funds are purchased and sold for one-day periods.
Securities	Securities Debt securities that management has the positive intent and ability to hold to maturity are classified as “held to maturity” and recorded at amortized cost. Securities not classified as held to maturity, including equity securities with readily determinable fair values, are classified as “available for sale” and recorded at fair value, with unrealized gains and losses excluded from earnings and reported in other comprehensive income. Purchase premiums and discounts are recognized in interest income using the interest method over the terms of the securities. Declines in the fair value of held to maturity and available for sale securities below their cost that are deemed to be “other than temporary” are reflected in earnings as realized losses. In estimating “other than temporary” impairment losses, management considers (1) the length of time and the extent to which the fair value has been less than cost, (2) the financial condition and near-term prospects of the issuer, and (3) the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery of fair value. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method. The Bank is required to maintain an investment in the capital stock of certain correspondent banks. No readily available market exists for this stock and it has no quoted market value. The investment in these securities is recorded at cost and they are reported on the Company’s consolidated balance sheet as restricted investments.
Loans	Loans The Company grants mortgage, commercial and consumer loans to customers. A substantial portion of the loan portfolio is represented by mortgage loans throughout the Counties of Clarke, Frederick, and Loudoun, Virginia and the City of Winchester, Virginia. The ability of the Company’s debtors to honor their contracts is dependent upon the real estate and general economic conditions in this area. Loans that management has the intent and ability to hold for the foreseeable future or until maturity or pay-off generally are reported at their outstanding unpaid principal balances adjusted for the allowance for loan losses. Interest income is accrued on the unpaid principal balance. Loan origination and commitment fees and direct loan costs are being recognized as collected and incurred. The use of this method of recognition does not produce results that are materially different from results which would have been produced if such costs and fees were deferred and amortized as an adjustment of the loan yield over the life of the related loan. The accrual of interest on mortgage and commercial loans is discontinued at the time the loan is 90 days delinquent unless the credit is well-secured and in process of collection. Credit card loans and other personal loans are typically charged off no later than 180 days past due. Past due status is based on the contractual terms of the loan. In all cases, loans are placed on nonaccrual or charged-off at an earlier date if collection of principal and interest is considered doubtful. All interest accrued but not collected for loans that are placed on nonaccrual or charged off is reversed against interest income. The interest on these loans is accounted for on the cash-basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.
Risks by Loan Portfolio Segments	Risks by Loan Portfolio Segments One-to-Four-Family Residential Real Estate Lending Residential mortgage loans generally are made on the basis of the borrower’s ability to make repayment from employment and other income and are secured by real estate whose value tends to be readily ascertainable. As part of the application process, information is gathered concerning income, employment and credit history of the applicant. The valuation of residential collateral is provided by independent fee appraisers who have been approved by the Bank’s Directors Loan Committee. Commercial Real Estate Lending Commercial real estate lending entails significant additional risk as compared with residential mortgage lending. Commercial real estate loans typically involve larger loan balances concentrated with single borrowers or groups of related borrowers. Additionally, the repayment of loans secured by income producing properties is typically dependent on the successful operation of a business or a real estate project and thus may be subject, to a greater extent, to adverse conditions in the real estate market or the economy, in general. Construction and Land Development Lending There are two characteristics of construction lending which impact its overall risk as compared to residential mortgage lending. First, there is more concentration risk due to the extension of a large loan balance through several lines of credit to a single developer or contractor. Second, there is more collateral risk due to the fact that loan funds are provided to the borrower based upon the estimated value of the collateral after completion. This could cause an inaccurate estimate of the amount needed to complete construction or an excessive loan-to-value ratio. To mitigate the risks associated with construction lending, the Bank generally limits loan amounts to 80% of the estimated appraised value of the finished home. Commercial and Industrial Lending Commercial business loans generally have more risk than residential mortgage loans, but have higher yields. To manage these risks, the Bank generally obtains appropriate collateral and personal guarantees from the borrower’s principal owners and monitors the financial condition of the borrower. Commercial business loans typically are made on the basis of the borrower’s ability to make repayment from cash flow from its business and are secured by business assets, such as commercial real estate, accounts receivable, equipment and inventory. As a result, the availability of funds for the repayment of commercial business loans is substantially dependent on the success of the business itself. Furthermore, the collateral for commercial business loans may depreciate over time and generally cannot be appraised with as much precision as residential real estate. Consumer Lending Consumer loans generally entail greater risk than residential mortgage loans, particularly in the case of consumer loans which are unsecured or secured by rapidly depreciable assets such as automobiles. In such cases, any repossessed collateral on a defaulted consumer loan may not provide an adequate source of repayment of the outstanding loan balance as a result of the greater likelihood of damage, loss or depreciation.
Allowance For Loan Losses	Allowance for Loan Losses The allowance for loan losses is established as losses are estimated to have occurred through a provision for loan losses charged to earnings. Loan losses are charged against the allowance when management believes the uncollectability of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. The allowance for loan losses is evaluated on a regular basis by management and is based upon management’s periodic review of the collectability of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. The allowance consists of specific, general and unallocated components. The specific component relates to loans that are impaired. An allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers non-impaired loans and is based on historical loss experience and other qualitative factors. An unallocated component is maintained to cover uncertainties that could affect management’s estimate of probable losses. The unallocated component of the allowance reflects the margin of imprecision inherent in the underlying assumptions used in the methodologies for estimating specific and general losses in the portfolio. A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan-by-loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair market value less estimated liquidation costs of the collateral if the loan is collateral dependent. Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. Accordingly, the Company does not separately identify individual consumer and residential loans for impairment disclosures, unless such loans are the subject of a restructuring agreement.
Bank Premises and Equipment	Bank Premises and Equipment Land is carried at cost. Buildings and equipment are carried at cost, less accumulated depreciation computed on the straight-line method over the estimated useful lives of the assets. Estimated useful lives range from 10 to 39 years for buildings and 3 to 10 years for furniture and equipment.
Other Real Estate Owned	Other Real Estate Owned Assets acquired through, or in lieu of, loan foreclosure are held for sale and are initially recorded at the fair value of the property, less selling costs at the date of foreclosure. Any write-downs based on the asset’s fair value at the date of acquisition are charged to the allowance for loan losses. After foreclosure, valuations are periodically performed by management and property held for sale is carried at the lower of the new cost basis or fair value less cost to sell. Impairment losses on property to be held and used are measured as the amount by which the carrying amount of a property exceeds its fair value. Costs of significant property improvements are capitalized, whereas costs relating to holding property are expensed. The portion of interest costs relating to development of real estate is capitalized. During 2013, there were no other real estate owned properties that were in the process of being developed by the Bank. Valuations are periodically performed by management, and any subsequent write-downs are recorded as a charge to operations, if necessary, to reduce the carrying value of a property to the lower of its cost or fair value less cost to sell. Revenue and expenses from operations and changes in the valuation allowance are included in the net expenses from foreclosed assets.
Retirement Plans	Retirement Plans The Company had a non-contributory defined benefit pension plan that covers eligible employees. Effective December 31, 2006, the pension plan was amended so that no further benefits would accrue under the plan and no additional employees could become participants. The plan was terminated during 2011 after receiving final IRS approval. Refer to Note 10 for a description of the termination of the Company’s pension plan. The Company also sponsors a 401(k) savings plan under which eligible employees may defer a portion of their compensation on a pretax basis. The Company also provides a match to participants in this plan, as described more fully in Note 12.
Stock-Based Compensation Plan	Stock-Based Compensation Plan During 2003, the Company’s shareholders approved a stock incentive plan which allows key employees and directors to increase their personal financial interest in the Company. This plan permits the issuance of incentive stock options and non-qualified stock options and the award of stock appreciation rights, common stock, restricted stock, and phantom stock. The plan, as adopted, authorized the issuance of up to 300,000 shares of common stock. This plan is discussed more fully in Note 11.
Income Taxes	Income Taxes Deferred income tax assets and liabilities are determined using the liability (or balance sheet) method. Under this method, the net deferred tax asset or liability is determined based on the tax effects of the temporary differences between the book and tax bases of the various assets and liabilities and gives current recognition to changes in tax rates and laws. When tax returns are filed, it is likely that some positions taken would be sustained upon examination by the applicable taxing authority, while others are subject to uncertainty about the merits of the position taken or the amount of the position that would be ultimately sustained. The benefit of a tax position is recognized in the financial statements in the period during which, based on all available evidence, the Company believes it is “more likely than not” that the position will be sustained upon examination, including the resolution of appeals or litigation processes, if any. Tax positions taken are not offset or aggregated with other positions. Tax positions that meet the “more likely than not” recognition threshold are measured as the largest amount of tax benefit that is more than fifty percent (50%) likely of being realized upon settlement with the applicable taxing authority. The portion of the benefits associated with tax positions taken that exceeds the amount measured as described above is reflected as a liability for unrecognized tax benefits in the balance sheet along with any associated interest and penalties that would be payable to the applicable taxing authority upon examination. Interest and penalties associated with unrecognized tax benefits are classified as additional income taxes in the statement of income. The Company has no uncertain tax positions.
Advertising	Advertising The Company follows the policy of charging the costs of advertising to expense as incurred.
Reclassifications	Reclassifications Certain reclassifications have been made to the 2012 financial statements to conform to reporting for 2013.
Earnings Per Common Share	Earnings Per Common Share Basic earnings per share represents income available to common shareholders divided by the weighted average number of common shares outstanding during the period. Diluted earnings per share reflects additional common shares that would have been outstanding if dilutive potential common shares had been issued, as well as any adjustment to income that would result from the assumed issuance. The number of potential common shares is determined using the treasury method and relates to outstanding stock options and nonvested restricted stock grants.
Comprehensive Income	Comprehensive Income Accounting principles generally accepted in the United States of America require that recognized revenue, expenses, gains and losses be included in net income. Certain changes in assets and liabilities, net of income taxes, are reported within the balance sheet as a separate component of shareholders’ equity. These changes, along with net income, are components of comprehensive income and are reported in the statement of comprehensive income. In addition to net income, the Company’s comprehensive income includes changes in the benefit obligations and plan assets for defined benefit and postretirement benefit plans, unrealized gains or losses on interest rate swaps, and unrealized gains or losses on available for sale securities.
Derivative Financial Instruments	Derivative Financial Instruments The Company follows GAAP to account for derivative and hedging activities. Accordingly, a derivative is recognized in the balance sheet at its fair value. The fair value of a derivative is determined by quoted market prices and mathematical models using current and historical data. If certain hedging criteria are met, including testing for hedge effectiveness, special hedge accounting may be applied. The Company assesses each hedge, both at inception and on an ongoing basis, to determine whether the derivative used in a hedging transaction is effective in offsetting changes in the fair value or cash flows of the hedged item and whether the derivative is expected to remain effective during subsequent periods. The Company discontinues hedge accounting when (a) it determines that a derivative is no longer effective in offsetting changes in fair value or cash flows of a hedged item; (b) the derivative expires or is sold, terminated or exercised; (c) probability exists that the forecasted transaction will no longer occur or (d) management determines that designating the derivative as a hedging instrument is no longer appropriate. When hedge accounting is discontinued and a derivative remains outstanding, the Company recognizes the derivative in the balance sheet at its fair value and changes in the fair value are recognized in net income. At inception, the Company designates a derivative as (a) a fair value hedge of recognized assets or liabilities or of unrecognized firm commitments (fair-value hedge) or (b) a hedge of forecasted transactions or variable cash flows to be received or paid in conjunction with recognized assets or liabilities (cash-flow hedge). For a derivative treated as a fair-value hedge, a change in fair value is recorded as an adjustment to the hedged item and recognized in net income. For a derivative treated as a cash flow hedge, the effective portion of a change in fair value is recorded as an adjustment to the hedged item and recognized as a component of accumulated other comprehensive income (loss) within shareholders’ equity. For a derivative treated as a cash flow hedge, the ineffective portion of a change in fair value is recorded as an adjustment to the hedged item and recognized in net income. For more information on derivative financial instruments see Note 14 to the Consolidated Financial Statements.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses and the valuation of deferred tax assets.
Stock Repurchase Program	Stock Repurchase Program On June 19, 2013, the Corporation renewed the stock repurchase program to repurchase up to 150,000 shares of its common stock prior to June 30, 2014. There was no repurchase activity during 2013 and 2012. During 2011, the Company purchased 15,663 shares of its Common Stock under its stock repurchase program at an average price of $17.28. The maximum number of shares that may yet be purchased under the plan as of December 31, 2013 are 134,337.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In December 2011, the FASB issued ASU 2011-11, “Balance Sheet (Topic 210) - Disclosures about Offsetting Assets and Liabilities.” This ASU requires entities to disclose both gross information and net information about both instruments and transactions eligible for offset in the balance sheet and instruments and transactions subject to an agreement similar to a master netting arrangement. An entity is required to apply the amendments for annual reporting periods beginning on or after January 1, 2013, and interim periods within those annual periods. An entity should provide the disclosures required by those amendments retrospectively for all comparative periods presented. The adoption of the new guidance did not have a material impact on the Company's consolidated financial statements. In July 2012, the FASB issued ASU 2012-02, “Intangibles - Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment.” The amendments in this ASU apply to all entities that have indefinite-lived intangible assets, other than goodwill, reported in their financial statements. The amendments in this ASU provide an entity with the option to make a qualitative assessment about the likelihood that an indefinite-lived intangible asset is impaired to determine whether it should perform a quantitative impairment test. The amendments also enhance the consistency of impairment testing guidance among long-lived asset categories by permitting an entity to assess qualitative factors to determine whether it is necessary to calculate the asset’s fair value when testing an indefinite-lived intangible asset for impairment. The amendments are effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012. Early adoption is permitted. The adoption of the new guidance did not have a material impact on the Company's consolidated financial statements. In January 2013, the FASB issued ASU 2013-01, “Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities.” The amendments in this ASU clarify the scope for derivatives accounted for in accordance with Topic 815, Derivatives and Hedging, including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements and securities borrowing and securities lending transactions that are either offset or subject to netting arrangements. An entity is required to apply the amendments for fiscal years, and interim periods within those years, beginning on or after January 1, 2013. The adoption of the new guidance did not have a material impact on the Company's consolidated financial statements. In February 2013, the FASB issued ASU 2013-02, “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.” The amendments in this ASU require an entity to present (either on the face of the statement where net income is presented or in the notes) the effects on the line items of net income of significant amounts reclassified out of accumulated other comprehensive income. In addition, the amendments require a cross-reference to other disclosures currently required for other reclassification items to be reclassified directly to net income in their entirety in the same reporting period. Companies should apply these amendments for fiscal years, and interim periods within those years, beginning on or after December 15, 2012. The Company has included the required disclosures from ASU 2013-02 in the consolidated financial statements. In July 2013, the FASB issued ASU 2013-10, “Derivatives and Hedging (Topic 815): Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes.” The amendments in this ASU permit the Fed Funds Effective Swap Rate (also referred to as the Overnight Index Swap Rate) to be used as a U.S. benchmark interest rate for hedge accounting purposes under Topic 815, in addition to interest rates on direct Treasury obligations of the U.S. government and the London Interbank Offered Rate. The amendments also remove the restriction on using different benchmark rates for similar hedges. The amendments apply to all entities that elect to apply hedge accounting of the benchmark interest rate under Topic 815. The amendments are effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. The adoption of the new guidance did not have a material impact on the Company's consolidated financial statements. In July 2013, the FASB issued ASU 2013-11, “Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists.” The amendments in this ASU provide guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, similar tax loss, or tax credit carryforward exists. An unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except as follows. To the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. The amendments in this ASU are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Early adoption is permitted. The amendments should be applied prospectively to all unrecognized tax benefits that exist at the effective date. Retrospective application is permitted. The adoption of the new guidance did not have a material impact on the Company's consolidated financial statements. In January 2014, the FASB issued ASU 2014-01, “Investments-Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects (a consensus of the FASB Emerging Issues Task Force).” The amendments in this ASU permit reporting entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). The amendments in this ASU should be applied retrospectively to all periods presented. A reporting entity that uses the effective yield method to account for its investments in qualified affordable housing projects before the date of adoption may continue to apply the effective yield method for those preexisting investments. The amendments in this ASU are effective for public business entities for annual periods and interim reporting periods within those annual periods, beginning after December 15, 2014. Early adoption is permitted. The Company is currently assessing the impact that ASU 2014-01 will have on its consolidated financial statements. In January 2014, the FASB issued ASU 2014-04, “Receivables-Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure (a consensus of the FASB Emerging Issues Task Force).” The amendments in this ASU clarify that an in substance repossession or foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either (1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (2) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. Additionally, the amendments require interim and annual disclosure of both (1) the amount of foreclosed residential real estate property held by the creditor and (2) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure according to local requirements of the applicable jurisdiction. The amendments in this ASU are effective for public business entities for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. The Company is currently assessing the impact that ASU 2014-04 will have on its consolidated financial statements.