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Restrictions On Dividends, Loans, and Advances (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Disclosure of Restrictions on Dividends, Loans and Advances Disclosure [Abstract]
Number of years used for undistributed net income of the Bank	3 years
Retained earnings available for the payment of dividends	$ 18.3us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPayments
Restricted net assets	58.1efsi_RestrictedEquityInNetAssetsOfBank
Funds available for loans or advances	$ 1.1efsi_FundsAvailableForLoansOrAdvances

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Funds Available For Loans Or Advances

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- Definition

Number Of Preceding Years Undistributed Net Income

+ References

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- Definition

Restricted Equity In Net Assets Of Bank

+ References

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- Details

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- Definition

Amount of dividends available for payment after computation of statutory restrictions on capital surplus.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(e))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph e

-Article 4

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