XML 68 R60.htm IDEA: XBRL DOCUMENT
v3.24.3

Loan Restructurings (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Payment Deferral |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis |  | $ 0 | $ 0 | $ 50
Principal Forgiveness |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis |  | 0 | 0 | 0
Interest Rate Reduction |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis |  | 31 | 29 | 31
Combination Term Extension and Interest Rate Reduction |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis |  | 133 | 20 | 133
Commercial | Commercial, Commercial and industrial |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis |  |  |  | $ 50
% of Total class of Financing receivable |  |  |  | 0.01%
Commercial | Commercial, Commercial and industrial | Payment Deferral |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis |  |  |  | $ 50
Commercial | Commercial, Commercial and industrial | Principal Forgiveness |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis |  |  |  | 0
Commercial | Commercial, Commercial and industrial | Interest Rate Reduction |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis |  |  |  | 0
Commercial | Commercial, Commercial and industrial | Combination Term Extension and Interest Rate Reduction |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis |  |  |  | 0
Residential Real Estate |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis |  | $ 164 | $ 49 | $ 214
% of Total class of Financing receivable |  | 0.01% | 0.00% | 0.01%
Residential Real Estate | Payment Deferral |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis | $ 0 |  | $ 0 |
Residential Real Estate | Interest Rate Reduction |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis | 29 |  | 29 |
Residential Real Estate | Term Extension |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis | 37 |  | 37 |
Residential Real Estate | Combination Term Extension and Interest Rate Reduction |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis | 20 |  | 20 |
Residential Real Estate | Residential real estate, 1-4 family residential |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis |  | $ 164 |  | $ 164
% of Total class of Financing receivable |  | 0.02% |  | 0.02%
Residential Real Estate | Residential real estate, 1-4 family residential | Payment Deferral |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis | 0 | $ 0 | 0 | $ 0
Residential Real Estate | Residential real estate, 1-4 family residential | Principal Forgiveness |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis |  | 0 |  | 0
Residential Real Estate | Residential real estate, 1-4 family residential | Interest Rate Reduction |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis | 0 | 31 | 0 | 31
Residential Real Estate | Residential real estate, 1-4 family residential | Term Extension |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis | 37 |  | 37 |
Residential Real Estate | Residential real estate, 1-4 family residential | Combination Term Extension and Interest Rate Reduction |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis | 0 | $ 133 | 0 | $ 133
Residential Real Estate | Residential real estate, Home equity lines of credit |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis |  |  | $ 49 |
% of Total class of Financing receivable |  |  | 0.03% |
Residential Real Estate | Residential real estate, Home equity lines of credit | Payment Deferral |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis | 0 |  | $ 0 |
Residential Real Estate | Residential real estate, Home equity lines of credit | Principal Forgiveness |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis |  |  | 0 |
Residential Real Estate | Residential real estate, Home equity lines of credit | Interest Rate Reduction |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis | 29 |  | 29 |
Residential Real Estate | Residential real estate, Home equity lines of credit | Term Extension |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis | 0 |  | 0 |
Residential Real Estate | Residential real estate, Home equity lines of credit | Combination Term Extension and Interest Rate Reduction |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Amortized Cost Basis | $ 20 |  | $ 20 |

X
- Definition Percentage of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-42 + Details
Name: | us-gaap_FinancingReceivableModificationToTotalFinancingReceivablesPercent
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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 Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 34 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-34 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-33 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-42 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-42 + Details
Name: | us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost of financing receivable modified during period for debtor experiencing financial difficulty. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-33 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-42 + Details
Name: | us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=us-gaap_PaymentDeferralMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=us-gaap_PrincipalForgivenessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=us-gaap_ContractualInterestRateReductionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=us-gaap_ExtendedMaturityAndInterestRateReductionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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