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Business Segments (Narrative) (Details) $ in Thousands | Aug. 23, 2023 USD ($)
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Axos Bank [Member] |
Segment Reporting Information [Line Items] |
Loans sold | $ 52,800
Service loan | 595
Loan Purchase Agreement [Member] |
Segment Reporting Information [Line Items] |
Proceeds from Sale of Assets Net of Selling Expenses | 53,500
Gain on Sale of Marine Business | $ 435

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- Definition Gain on Sale of Marine Business. + References No definition available. + Details
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Namespace Prefix: | efsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition loans sold + References No definition available. + Details
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Namespace Prefix: | efsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Proceeds from Sale of Assets Net of Selling Expenses. + References No definition available. + Details
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Namespace Prefix: | efsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Service loan + References No definition available. + Details
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Namespace Prefix: | efsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |