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v3.22.2.2

Other Real Estate Owned Narrative (Details) | Sep. 30, 2022 USD ($) Contract | Dec. 31, 2021 Contract
--- | --- | ---
Real Estate [Abstract] |  |
Mortgage loan totaling collateralized | $ | $ 116 |
Mortgage Loans In Process Of Foreclosure Number | Contract | 1 | 0

X
- Definition Mortgage loan totaling collateralized + References No definition available. + Details
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Namespace Prefix: | efsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Mortgage Loans In Process Of Foreclosure Number + References No definition available. + Details
Name: | efsi_MortgageLoansInProcessOfForeclosureNumber
Namespace Prefix: | efsi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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