XML 57 R47.htm IDEA: XBRL DOCUMENT v3.7.0.1

Troubled Debt Restructurings (Schedule Of Troubled Debt Restructurings On Financing Receivables) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016 USD ($) contract
Troubled Debt Restructuring, Subsequent Periods [Line Items]
Pre-Modification Outstanding Recorded Investment		$ 832
Post-Modification Outstanding Recorded Investment		832
Troubled Debt Restructuring Modifications Number Of Contracts	0
Commercial Real Estate Non-Owner Occupied
Troubled Debt Restructuring, Subsequent Periods [Line Items]
Pre-Modification Outstanding Recorded Investment		736
Post-Modification Outstanding Recorded Investment		$ 736
Troubled Debt Restructuring Modifications Number Of Contracts | contract		1
Residential Single Family
Troubled Debt Restructuring, Subsequent Periods [Line Items]
Pre-Modification Outstanding Recorded Investment		$ 96
Post-Modification Outstanding Recorded Investment		$ 96
Troubled Debt Restructuring Modifications Number Of Contracts | contract		1

X

- Definition

Troubled debt restructuring modifications number of contracts.

+ References

No definition available.

+ Details

Name:	efsi_TroubledDebtRestructuringModificationsNumberOfContracts
Namespace Prefix:	efsi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Troubled Debt Restructuring, Subsequent Periods [Line Items]

+ References

No definition available.

+ Details

Name:	efsi_TroubledDebtRestructuringSubsequentPeriodsLineItems
Namespace Prefix:	efsi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

+ Details

Name:	us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

+ Details

Name:	us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=efsi_CommercialRealEstateNonOwnerOccupiedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=efsi_ResidentialSingleFamilyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: