XML 94 R80.htm IDEA: XBRL DOCUMENT
v3.19.1

Borrowings (Summary of Information Related to Federal Funds Purchased) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Advances from Federal Home Loan Banks [Abstract] |  |
Federal funds purchased | $ 1,871 | $ 0
Average balance during the year | $ 964 | $ 823
Average interest rate during the year | 2.63% | 1.64%
Maximum month-end balance during the year | $ 7,820 | $ 3,413
Gross lines of credit at year-end | 28,000 | 28,000
Unused lines of credit at year-end | $ 26,129 | $ 28,000

X
- Definition Federal Funds Purchased Activity For Year Average Balance Of Agreements Outstanding + References No definition available. + Details
Name: | efsi_FederalFundsPurchasedActivityForYearAverageBalanceOfAgreementsOutstanding
Namespace Prefix: | efsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Federal Funds Purchased Activity For Year Average Interest Rate For Year + References No definition available. + Details
Name: | efsi_FederalFundsPurchasedActivityForYearAverageInterestRateForYear
Namespace Prefix: | efsi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Federal Funds Purchased Activity For Year Gross Lines Of Credit + References No definition available. + Details
Name: | efsi_FederalFundsPurchasedActivityForYearGrossLinesOfCredit
Namespace Prefix: | efsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Federal Funds Purchased Activity For Year Maximum Outstanding At Any Month End + References No definition available. + Details
Name: | efsi_FederalFundsPurchasedActivityForYearMaximumOutstandingAtAnyMonthEnd
Namespace Prefix: | efsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Federal Funds Purchased Activity For Year Unused Lines Of Credit + References No definition available. + Details
Name: | efsi_FederalFundsPurchasedActivityForYearUnusedLinesOfCredit
Namespace Prefix: | efsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AdvancesFromFederalHomeLoanBanksAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount after offset of short term borrowing where a bank borrows, at the federal funds rate, from another bank and securities that an entity sells and agrees to repurchase at a specified date for a specified price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(1)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant