XML 26 R79.htm IDEA: XBRL DOCUMENT v2.4.1.9
Borrowings (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Schedule of Federal Home Loan Bank Advances [Line Items]    
Other unused lines of credit $ 5,000,000efsi_OtherActivityForYearUnusedLinesOfCredit  
Gross lines of credit at year-end 36,000,000efsi_FederalFundsPurchasedActivityForYearGrossLinesOfCredit 36,000,000efsi_FederalFundsPurchasedActivityForYearGrossLinesOfCredit
Funds from customers through retail repurchase agreement 0efsi_DepositsReceivedforSecuritiesLoanedRetailRepurchaseAgreementatCarryingValue  
Funds from customers through wholesale repurchase agreement 0efsi_DepositsReceivedforSecuritiesLoanedWholesaleRepurchaseAgreementatCarryingValue  
FHLB advances due in the next twelve months 20,000,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate  
FHLB long-term borrowings due in year three 20,000,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate  
Federal Home Loan Bank advances 40,000,000us-gaap_FederalHomeLoanBankAdvancesLongTerm 22,250,000us-gaap_FederalHomeLoanBankAdvancesLongTerm
Interest rate on outstanding long-term advances at period-end 1.30%us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateAtPeriodEnd  
FHLB advances short-term 20,000,000us-gaap_FederalHomeLoanBankAdvancesShortTerm  
Interest rates on outstanding short-term advances ranged from 3.0175%us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateRangeFrom  
Interest rates on outstanding short-term advances ranged to 3.025%us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateRangeTo  
Weighted average interest rate on outstanding short-term advances 3.021%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate  
FHLB irrevocable letter of credit 15,000,000efsi_FederalHomeLoanBankIrrevocableLetterofCredit  
Federal Home Loan Bank of Atlanta [Member]    
Schedule of Federal Home Loan Bank Advances [Line Items]    
Unused line of credit total $ 65,400,000us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresAmountOfAvailableUnusedFunds
/ us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis
= us-gaap_FederalHomeLoanBankOfAtlantaMember		  
Available credit to total Bank assets, maximum percentage 20.00%efsi_FederalHomeLoanBankAdvancesMaximumAvailableCredittoBankAssetsPercentage
/ us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis
= us-gaap_FederalHomeLoanBankOfAtlantaMember