XML 54 R44.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Allowance For Loan Losses (Impaired Loans By Class) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2017 | Dec. 31, 2016
Unpaid Principal Balance [Abstract] |  |  |
Total: | $ 11,895 | $ 11,895 | $ 14,341
Recorded Investment [Abstract] |  |  |
Total: | 11,185 | 11,185 | 13,400
Related Allowance | 271 | 271 | 385
Average Recorded Investment [Abstract] |  |  |
Total: | 11,300 | 11,339 | 13,719
Interest Income Recognized [Abstract] |  |  |
Total: | 75 | 143 | 415
Consumer Installment |  |  |
Unpaid Principal Balance [Abstract] |  |  |
Total: | 17 | 17 | 8
Recorded Investment [Abstract] |  |  |
Total: | 16 | 16 | 8
Related Allowance | 0 | 0 | 0
Average Recorded Investment [Abstract] |  |  |
Total: |  | 17 | 9
Interest Income Recognized [Abstract] |  |  |
Total: |  | 0 | 0
Commercial |  |  |
Unpaid Principal Balance [Abstract] |  |  |
Total: | 525 | 525 | 594
Recorded Investment [Abstract] |  |  |
Total: | 504 | 504 | 582
Related Allowance | 2 | 2 | 15
Average Recorded Investment [Abstract] |  |  |
Total: |  | 542 | 654
Interest Income Recognized [Abstract] |  |  |
Total: |  | 13 | 35
Commercial Real Estate |  |  |
Unpaid Principal Balance [Abstract] |  |  |
Total: | 1,895 | 1,895 | 3,194
Recorded Investment [Abstract] |  |  |
Total: | 1,751 | 1,751 | 2,867
Related Allowance | 64 | 64 | 102
Average Recorded Investment [Abstract] |  |  |
Total: |  | 1,759 | 2,954
Interest Income Recognized [Abstract] |  |  |
Total: |  | 25 | 75
Construction and Farmland |  |  |
Unpaid Principal Balance [Abstract] |  |  |
Total: | 331 | 331 | 1,320
Recorded Investment [Abstract] |  |  |
Total: | 331 | 331 | 1,324
Related Allowance | 0 | 0 | 0
Average Recorded Investment [Abstract] |  |  |
Total: |  | 338 | 1,358
Interest Income Recognized [Abstract] |  |  |
Total: |  | 14 | 75
Residential Real Estate |  |  |
Unpaid Principal Balance [Abstract] |  |  |
Total: | 9,127 | 9,127 | 9,225
Recorded Investment [Abstract] |  |  |
Total: | 8,583 | 8,583 | 8,619
Related Allowance | 205 | 205 | 268
Average Recorded Investment [Abstract] |  |  |
Total: |  | 8,683 | 8,744
Interest Income Recognized [Abstract] |  |  |
Total: |  | 91 | 230
All Other Loans |  |  |
Unpaid Principal Balance [Abstract] |  |  |
Total: | 0 | 0 | 0
Recorded Investment [Abstract] |  |  |
Total: | 0 | 0 | 0
Related Allowance | 0 | 0 | 0
Average Recorded Investment [Abstract] |  |  |
Total: |  | 0 | 0
Interest Income Recognized [Abstract] |  |  |
Total: |  | 0 | 0
With No Related Allowance [Member] |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With no related allowance: | 9,195 | 9,195 | 10,895
Recorded Investment [Abstract] |  |  |
With no related allowance: | 8,661 | 8,661 | 10,335
Average Recorded Investment [Abstract] |  |  |
With no related allowance: |  | 8,793 | 10,586
Interest Income Recognized [Abstract] |  |  |
With no related allowance: |  | 88 | 294
With No Related Allowance [Member] | Commercial - Non Real Estate Commercial And Industrial |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With no related allowance: | 258 | 258 | 311
Recorded Investment [Abstract] |  |  |
With no related allowance: | 237 | 237 | 299
Average Recorded Investment [Abstract] |  |  |
With no related allowance: |  | 266 | 356
Interest Income Recognized [Abstract] |  |  |
With no related allowance: |  | 7 | 21
With No Related Allowance [Member] | Commercial Real Estate Owner Occupied |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With no related allowance: | 865 | 865 | 869
Recorded Investment [Abstract] |  |  |
With no related allowance: | 750 | 750 | 772
Average Recorded Investment [Abstract] |  |  |
With no related allowance: |  | 753 | 778
Interest Income Recognized [Abstract] |  |  |
With no related allowance: |  | 7 | 15
With No Related Allowance [Member] | Commercial Real Estate Non-Owner Occupied |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With no related allowance: | 215 | 215 | 1,298
Recorded Investment [Abstract] |  |  |
With no related allowance: | 184 | 184 | 1,066
Average Recorded Investment [Abstract] |  |  |
With no related allowance: |  | 185 | 1,137
Interest Income Recognized [Abstract] |  |  |
With no related allowance: |  | 0 | 13
With No Related Allowance [Member] | Construction And Farmland Commercial |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With no related allowance: | 331 | 331 | 1,320
Recorded Investment [Abstract] |  |  |
With no related allowance: | 331 | 331 | 1,324
Average Recorded Investment [Abstract] |  |  |
With no related allowance: |  | 338 | 1,358
Interest Income Recognized [Abstract] |  |  |
With no related allowance: |  | 14 | 75
With No Related Allowance [Member] | Consumer Installment |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With no related allowance: | 17 | 17 | 8
Recorded Investment [Abstract] |  |  |
With no related allowance: | 16 | 16 | 8
Average Recorded Investment [Abstract] |  |  |
With no related allowance: |  | 17 | 9
Interest Income Recognized [Abstract] |  |  |
With no related allowance: |  | 0 | 0
With No Related Allowance [Member] | Residential Equity Lines |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With no related allowance: | 236 | 236 | 17
Recorded Investment [Abstract] |  |  |
With no related allowance: | 60 | 60 | 17
Average Recorded Investment [Abstract] |  |  |
With no related allowance: |  | 62 | 18
Interest Income Recognized [Abstract] |  |  |
With no related allowance: |  | 0 | 0
With No Related Allowance [Member] | Residential Single Family |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With no related allowance: | 7,273 | 7,273 | 7,072
Recorded Investment [Abstract] |  |  |
With no related allowance: | 7,083 | 7,083 | 6,849
Average Recorded Investment [Abstract] |  |  |
With no related allowance: |  | 7,172 | 6,930
Interest Income Recognized [Abstract] |  |  |
With no related allowance: |  | 60 | 170
With No Related Allowance [Member] | All Other Loans |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With no related allowance: | 0 | 0 | 0
Recorded Investment [Abstract] |  |  |
With no related allowance: | 0 | 0 | 0
Average Recorded Investment [Abstract] |  |  |
With no related allowance: |  | 0 | 0
Interest Income Recognized [Abstract] |  |  |
With no related allowance: |  | 0 | 0
With An Allowance Recorded [Member] |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With an allowance recorded: | 2,700 | 2,700 | 3,446
Recorded Investment [Abstract] |  |  |
With an allowance recorded: | 2,524 | 2,524 | 3,065
Related Allowance | 271 | 271 | 385
Average Recorded Investment [Abstract] |  |  |
With an allowance recorded: |  | 2,546 | 3,133
Interest Income Recognized [Abstract] |  |  |
With an allowance recorded: |  | 55 | 121
With An Allowance Recorded [Member] | Commercial - Non Real Estate Commercial And Industrial |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With an allowance recorded: | 267 | 267 | 283
Recorded Investment [Abstract] |  |  |
With an allowance recorded: | 267 | 267 | 283
Related Allowance | 2 | 2 | 15
Average Recorded Investment [Abstract] |  |  |
With an allowance recorded: |  | 276 | 298
Interest Income Recognized [Abstract] |  |  |
With an allowance recorded: |  | 6 | 14
With An Allowance Recorded [Member] | Commercial Real Estate Owner Occupied |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With an allowance recorded: |  |  | 203
Recorded Investment [Abstract] |  |  |
With an allowance recorded: |  |  | 203
Related Allowance |  |  | 37
Average Recorded Investment [Abstract] |  |  |
With an allowance recorded: |  |  | 205
Interest Income Recognized [Abstract] |  |  |
With an allowance recorded: |  |  | 10
With An Allowance Recorded [Member] | Commercial Real Estate Non-Owner Occupied |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With an allowance recorded: | 815 | 815 | 824
Recorded Investment [Abstract] |  |  |
With an allowance recorded: | 817 | 817 | 826
Related Allowance | 64 | 64 | 65
Average Recorded Investment [Abstract] |  |  |
With an allowance recorded: |  | 821 | 834
Interest Income Recognized [Abstract] |  |  |
With an allowance recorded: |  | 18 | 37
With An Allowance Recorded [Member] | Construction And Farmland Commercial |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With an allowance recorded: | 0 | 0 | 0
Recorded Investment [Abstract] |  |  |
With an allowance recorded: | 0 | 0 | 0
Related Allowance | 0 | 0 | 0
Average Recorded Investment [Abstract] |  |  |
With an allowance recorded: |  | 0 | 0
Interest Income Recognized [Abstract] |  |  |
With an allowance recorded: |  | 0 | 0
With An Allowance Recorded [Member] | Residential Equity Lines |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With an allowance recorded: | 218 | 218 | 458
Recorded Investment [Abstract] |  |  |
With an allowance recorded: | 48 | 48 | 115
Related Allowance | 48 | 48 | 56
Average Recorded Investment [Abstract] |  |  |
With an allowance recorded: |  | 48 | 120
Interest Income Recognized [Abstract] |  |  |
With an allowance recorded: |  | 0 | 0
With An Allowance Recorded [Member] | Residential Single Family |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With an allowance recorded: | 1,400 | 1,400 | 1,678
Recorded Investment [Abstract] |  |  |
With an allowance recorded: | 1,392 | 1,392 | 1,638
Related Allowance | 157 | 157 | 212
Average Recorded Investment [Abstract] |  |  |
With an allowance recorded: |  | 1,401 | 1,676
Interest Income Recognized [Abstract] |  |  |
With an allowance recorded: |  | 31 | 60
With An Allowance Recorded [Member] | All Other Loans |  |  |
Unpaid Principal Balance [Abstract] |  |  |
With an allowance recorded: | 0 | 0 | 0
Recorded Investment [Abstract] |  |  |
With an allowance recorded: | 0 | 0 | 0
Related Allowance | $ 0 | 0 | 0
Average Recorded Investment [Abstract] |  |  |
With an allowance recorded: |  | 0 | 0
Interest Income Recognized [Abstract] |  |  |
With an allowance recorded: |  | $ 0 | $ 0

X
- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRelatedAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of interest income, recognized on accrual basis, on financing receivables that are recognized as impaired, for which there is no related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of investment in impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of unpaid principal balance of impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of average investment of impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of interest income, recognized on accrual basis, on financing receivables, for which there is a related allowance for credit losses and are recognized as impaired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of investment in impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=efsi_ConsumerInstallmentFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=efsi_ConstructionAndFarmlandFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=efsi_OtherLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | efsi_ImpairedFinancingReceivableWithAndWithoutRecordedAllowanceAxis=efsi_WithNoRelatedAllowanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=efsi_CommercialNonRealEstateCommercialAndIndustrialFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=efsi_CommercialRealEstateOwnerOccupiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=efsi_ConstructionAndFarmlandCommercialFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=efsi_ResidentialEquityLinesFinancingReceivableMember
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: |

X
- Details
Name: | efsi_ImpairedFinancingReceivableWithAndWithoutRecordedAllowanceAxis=efsi_WithAllowanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |