XML 69 R64.htm IDEA: XBRL DOCUMENT v3.20.1

Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) Loan	Mar. 31, 2019 USD ($) Loan
Financing Receivable Modifications [Line Items]
Number of Loans | Loan	22	18
Pre-Modification Outstanding Recorded Investment	$ 474	$ 269
Post-Modification Outstanding Recorded Investment	$ 477	$ 275
Originated Loans
Financing Receivable Modifications [Line Items]
Number of Loans | Loan	21	16
Pre-Modification Outstanding Recorded Investment	$ 406	$ 218
Post-Modification Outstanding Recorded Investment	$ 409	$ 220
Originated Loans | Residential real estate, 1-4 family residential
Financing Receivable Modifications [Line Items]
Number of Loans | Loan	5	3
Pre-Modification Outstanding Recorded Investment	$ 209	$ 73
Post-Modification Outstanding Recorded Investment	$ 210	$ 75
Originated Loans | Residential real estate, Home equity lines of credit
Financing Receivable Modifications [Line Items]
Number of Loans | Loan	4	1
Pre-Modification Outstanding Recorded Investment	$ 100	$ 40
Post-Modification Outstanding Recorded Investment	$ 102	$ 40
Originated Loans | Consumer, Indirect
Financing Receivable Modifications [Line Items]
Number of Loans | Loan	10	12
Pre-Modification Outstanding Recorded Investment	$ 61	$ 105
Post-Modification Outstanding Recorded Investment	$ 61	$ 105
Originated Loans | Consumer, Other
Financing Receivable Modifications [Line Items]
Number of Loans | Loan	1
Pre-Modification Outstanding Recorded Investment	$ 15
Post-Modification Outstanding Recorded Investment	$ 15
Acquired Loans
Financing Receivable Modifications [Line Items]
Number of Loans | Loan	1	2
Pre-Modification Outstanding Recorded Investment	$ 68	$ 51
Post-Modification Outstanding Recorded Investment	$ 68	$ 55
Acquired Loans | Commercial
Financing Receivable Modifications [Line Items]
Number of Loans | Loan	1
Pre-Modification Outstanding Recorded Investment	$ 21
Post-Modification Outstanding Recorded Investment	$ 21
Acquired Loans | Residential real estate, 1-4 family residential
Financing Receivable Modifications [Line Items]
Number of Loans | Loan	1	2
Pre-Modification Outstanding Recorded Investment	$ 68	$ 51
Post-Modification Outstanding Recorded Investment	$ 68	$ 55

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_FinancingReceivableModificationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524

+ Details

Name:	us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount, after troubled debt restructuring, of modified financing receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524

+ Details

Name:	us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount, before troubled debt restructuring, of financing receivable to be modified.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524

+ Details

Name:	us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=fmnb_OriginatedLoansMember
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_ResidentialRealEstateHomeEquityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fmnb_ConsumerIndirectMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fmnb_ConsumerOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=fmnb_AcquiredLoansMember
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: