XML 73 R94.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Employee Benefits (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Defined Contribution Plan [Line Items] |  |  |
Matched percentage by employer | 50.00% |  |
Maximum employee percentage of deferred salary matched by employer | 6.00% |  |
Non-elective safe-harbor contribution received each December 31st | 3.00% |  |
Employer contributions | $ 888 | $ 867 | $ 739
Maximum age benefit could be reduced or forfeited | 65 years |  |
Supplemental income benefit liability | 93 | 121 |
Supplemental income benefit expense | $ 8 | $ 16 | $ 13
Minimum [Member] |  |  |
Defined Contribution Plan [Line Items] |  |  |
Non-elective safe-harbor contribution received each December 31st | 1.00% |  |
Maximum [Member] |  |  |
Defined Contribution Plan [Line Items] |  |  |
Non-elective safe-harbor contribution received each December 31st | 10.00% |  |

X
- Details
Name: | efsi_DefinedContributionPlanLineItems
Namespace Prefix: | efsi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Executive Supplemental Income Benefit Expense + References No definition available. + Details
Name: | efsi_ExecutiveSupplementalIncomeBenefitExpense
Namespace Prefix: | efsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Executive Supplemental Income Benefit Liability + References No definition available. + Details
Name: | efsi_ExecutiveSupplementalIncomeBenefitLiability
Namespace Prefix: | efsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Maximum Age Benefits Can Be Reduced Or Forfeited Due To Employment Termination + References No definition available. + Details
Name: | efsi_MaximumAgeBenefitsCanBeReducedOrForfeitedDueToEmploymentTermination
Namespace Prefix: | efsi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Non Elective Safe Harbor Employer Contribution And Age Weighted Employer Contribution Percent + References No definition available. + Details
Name: | efsi_NonElectiveSafeHarborEmployerContributionAndAgeWeightedEmployerContributionPercent
Namespace Prefix: | efsi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The increase in the fair value of plan assets from contributions made by the employer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanContributionsByEmployer
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration