XML 90 R74.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Fair Value (Details 2) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment | $ 5,697 | $ 7,338
Commercial real estate, Owner occupied | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment | 23 | 23
Other real estate owned, 1–4 family residential | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment |  | 16
Commercial real estate, Farmland | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment |  | 339
Commercial, Agricultural | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment |  | 113
Residential Real Estate | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment | 158 | 77
Consumer | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment | 6 | 2
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial real estate, Owner occupied | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other real estate owned, 1–4 family residential | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment |  | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial real estate, Farmland | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment |  | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial, Agricultural | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment |  | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential Real Estate | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Consumer | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment | 0 | 0
Significant Other Observable Inputs (Level 2) | Commercial real estate, Owner occupied | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment | 0 | 0
Significant Other Observable Inputs (Level 2) | Other real estate owned, 1–4 family residential | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment |  | 0
Significant Other Observable Inputs (Level 2) | Commercial real estate, Farmland | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment |  | 0
Significant Other Observable Inputs (Level 2) | Commercial, Agricultural | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment |  | 0
Significant Other Observable Inputs (Level 2) | Residential Real Estate | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment | 0 | 0
Significant Other Observable Inputs (Level 2) | Consumer | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment | 0 | 0
Significant Unobservable Inputs (Level 3) | Commercial real estate, Owner occupied | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment | 23 | 23
Significant Unobservable Inputs (Level 3) | Other real estate owned, 1–4 family residential | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment |  | 16
Significant Unobservable Inputs (Level 3) | Commercial real estate, Farmland | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment |  | 339
Significant Unobservable Inputs (Level 3) | Commercial, Agricultural | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment |  | 113
Significant Unobservable Inputs (Level 3) | Residential Real Estate | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment | 158 | 77
Significant Unobservable Inputs (Level 3) | Consumer | Fair Value, Measurements, Nonrecurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Recorded Investment | $ 6 | $ 2

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

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |