$FMNB
FARMERS NATIONAL BANC CORP /OH/ Stock $fmnb

$fmnb Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000095017023007035 Filed on March 09, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022 Q1
Revenue	$51.23M	$38.11M	$33.28M
YoY Change	53.95%	20.28%	19.75%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$1.899M	$1.424M	$1.162M
YoY Change	63.43%	28.29%	45.25%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$14.62M	$8.679M	$2.037M
YoY Change	617.87%	337.01%	-19.26%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$7.714M	$16.12M	$18.84M
YoY Change	-59.06%	159.6%	6.71%
Income Tax	$639.0K	$2.765M	$2.998M
% Of Pretax Income	8.28%	17.15%	15.91%
Net Earnings	$7.075M	$13.36M	$15.84M
YoY Change	-55.35%	134.23%	8.85%
Net Earnings / Revenue	13.81%	35.05%	47.61%
Basic Earnings Per Share	$0.19		$0.47
Diluted Earnings Per Share	$0.19	$393.3K	$0.47
COMMON SHARES
Basic Shares Outstanding	37.94M	34.06M	33.82M
Diluted Shares Outstanding	37.93M		33.94M

Balance Sheet

Concept	2023 Q1	2022 Q4	2022 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$128.0M	$75.55M	$137.6M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$54.27M	$39.17M	$37.11M
YoY Change	46.25%	4.41%	46.08%
Goodwill	$167.9M	$94.60M	$94.20M
YoY Change	78.24%	0.42%	105.68%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$5.110B	$4.082B	$4.206B
YoY Change	21.49%	-1.46%	26.51%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$204.0M	$95.00M
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities		$95.00M
YoY Change
LONG-TERM LIABILITIES
Long-Term Debt	$88.32M	$183.2M	$87.87M
YoY Change	0.51%	108.67%	824.97%
Other Long-Term Liabilities	$46.76M	$44.93M	$30.29M
YoY Change	54.39%	27.27%	-52.97%
Total Long-Term Liabilities	$135.1M	$228.1M	$118.2M
YoY Change	14.32%	85.33%	59.89%
TOTAL LIABILITIES
Total Short-Term Liabilities		$95.00M
Total Long-Term Liabilities	$135.1M	$228.1M	$118.2M
Total Liabilities	$4.735B	$3.790B	$3.812B
YoY Change	24.22%	3.26%	28.04%
SHAREHOLDERS EQUITY
Retained Earnings	$213.0M	$212.4M	$184.3M
YoY Change	15.58%	22.13%
Common Stock	$364.3M	$305.3M	$304.7M
YoY Change	19.58%	-0.26%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$26.00M	$14.93M	$15.59M
YoY Change	66.78%	-11.56%
Treasury Stock Shares	$1.882M	$1.074M
Shareholders Equity	$374.6M	$292.3M	$393.9M
YoY Change
Total Liabilities & Shareholders Equity	$5.110B	$4.082B	$4.206B
YoY Change	21.49%	-1.46%	26.51%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022 Q1
OPERATING ACTIVITIES
Net Income	$7.075M	$13.36M	$15.84M
YoY Change	-55.35%	134.23%	8.85%
Depreciation, Depletion And Amortization	$1.899M	$1.424M	$1.162M
YoY Change	63.43%	28.29%	45.25%
Cash From Operating Activities	$13.70M	$21.56M	$13.20M
YoY Change	3.77%	44.03%	87.57%
INVESTING ACTIVITIES
Capital Expenditures	$0.00	$748.0K	-$346.0K
YoY Change	-100.0%	-181.3%	-257.99%
Acquisitions
YoY Change
Other Investing Activities	$64.12M	$45.89M	-$129.2M
YoY Change	-149.64%	430.58%	-16.5%
Cash From Investing Activities	$64.12M	$45.15M	-$129.5M
YoY Change	-149.51%	483.29%	-16.4%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-25.37M	-71.14M	141.2M
YoY Change	-117.97%	-792.69%	-35.74%
NET CHANGE
Cash From Operating Activities	13.70M	21.56M	13.20M
Cash From Investing Activities	64.12M	45.15M	-129.5M
Cash From Financing Activities	-25.37M	-71.14M	141.2M
Net Change In Cash	52.45M	-4.430M	24.84M
YoY Change	111.18%	-113.43%	-65.39%
FREE CASH FLOW
Cash From Operating Activities	$13.70M	$21.56M	$13.20M
Capital Expenditures	$0.00	$748.0K	-$346.0K
Free Cash Flow	$13.70M	$20.81M	$13.55M
YoY Change	1.11%	30.99%	98.67%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
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CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	false
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2022Q2	dei	Entity Public Float EntityPublicFloat	468700000
CY2022	dei	Security12b Title Security12bTitle	Common Stock, No Par Value
CY2022	dei	Trading Symbol TradingSymbol	FMNB
CY2022	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2023Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	37944511
CY2021Q4	us-gaap	Deposits Deposits	3547235000
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	95000000
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	0
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	88211000
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	87758000
CY2022Q4	us-gaap	Other Liabilities OtherLiabilities	44926000
CY2021Q4	us-gaap	Other Liabilities OtherLiabilities	35324000
CY2022Q4	us-gaap	Liabilities Liabilities	3789905000
CY2021Q4	us-gaap	Liabilities Liabilities	3670317000
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	35128962
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	35128962
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	34055125
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	33898236
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	305340000
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	306123000
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	212375000
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	173896000
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-210490000
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	9295000
CY2022Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1073837
CY2021Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1230726
CY2022Q4	us-gaap	Treasury Stock Value TreasuryStockValue	14930000
CY2021Q4	us-gaap	Treasury Stock Value TreasuryStockValue	16882000
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CY2020Q4	fmnb	Other Real Estate Owned Measured At Fair Value Net OtherRealEstateOwnedMeasuredAtFairValueNet	0
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CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022	us-gaap	Lessee Operating Lease Option To Terminate LesseeOperatingLeaseOptionToTerminate	April of 2023
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CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	001-35296
CY2022	dei	Entity Registrant Name EntityRegistrantName	Farmers National Banc Corp.
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	OH
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	34-1371693
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	20 South Broad Street
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Canfield
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	OH
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	44406
CY2022	dei	City Area Code CityAreaCode	330
CY2022	dei	Auditor Name AuditorName	CliftonLarsonAllen LLP
CY2022	dei	Auditor Location AuditorLocation	Toledo, Ohio
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CY2021Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	29150000
CY2022Q4	fmnb	Federal Funds Sold And Other FederalFundsSoldAndOther	54156000
CY2021Q4	fmnb	Federal Funds Sold And Other FederalFundsSoldAndOther	83640000
CY2022Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	75551000
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CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1427677000
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CY2022Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	858000
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CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	8366000
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CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	72835000
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	62114000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	50272000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12238000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10270000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8396000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	60597000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	51844000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	41876000
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.79
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.78
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.48
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.79
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.77
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.47
CY2022	us-gaap	Net Income Loss NetIncomeLoss	60597000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	51844000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	41876000
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-278620000
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-15333000
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	16651000
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-415000
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	838000
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	385000
CY2022	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-278205000
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-16171000
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	16266000
CY2022	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-58423000
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-3396000
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	4060000
CY2022	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-219782000
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-12775000
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	12206000
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	3000
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-38000
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-0
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-219785000
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-12737000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	12206000
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-159188000
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	39107000
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	54082000
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	299309000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	41876000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	12206000
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1443000
CY2020	fmnb	Stock Issued During Period Value Vesting Of Long Term Incentive Plan StockIssuedDuringPeriodValueVestingOfLongTermIncentivePlan	161000
CY2020	fmnb	Share Forfeitures For Taxes ShareForfeituresForTaxes	560000
CY2020	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	22554000
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	12654000
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	14238000
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	350097000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	51844000
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-12737000
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1193000
CY2021	fmnb	Stock Issued During Period Value Vesting Of Long Term Incentive Plan StockIssuedDuringPeriodValueVestingOfLongTermIncentivePlan	0
CY2021	fmnb	Share Forfeitures For Taxes ShareForfeituresForTaxes	443000
CY2021	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	98921000
CY2021	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	258000
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	14085000
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	164000
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	472432000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	60597000
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-219785000
CY2022	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0
CY2022	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1817000
CY2022	fmnb	Stock Issued During Period Value Vesting Of Long Term Incentive Plan StockIssuedDuringPeriodValueVestingOfLongTermIncentivePlan	-457000
CY2022	fmnb	Share Forfeitures For Taxes ShareForfeituresForTaxes	191000
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	22118000
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	292295000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	60597000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	51844000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	41876000
CY2022	fmnb	Provision For Credit Losses Expensed ProvisionForCreditLossesExpensed	250000
CY2021	fmnb	Provision For Credit Losses Expensed ProvisionForCreditLossesExpensed	4649000
CY2020	fmnb	Provision For Credit Losses Expensed ProvisionForCreditLossesExpensed	9159000
CY2022	fmnb	Provision Credit For Unfunded Commitment ProvisionCreditForUnfundedCommitment	872000
CY2021	fmnb	Provision Credit For Unfunded Commitment ProvisionCreditForUnfundedCommitment	244000
CY2020	fmnb	Provision Credit For Unfunded Commitment ProvisionCreditForUnfundedCommitment	-59000
CY2022	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	4899000
CY2021	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	3539000
CY2020	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	3122000
CY2022	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	4817000
CY2021	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	3555000
CY2020	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	2347000
CY2022	us-gaap	Debt Securities Gain Loss DebtSecuritiesGainLoss	-415000
CY2021	us-gaap	Debt Securities Gain Loss DebtSecuritiesGainLoss	838000
CY2020	us-gaap	Debt Securities Gain Loss DebtSecuritiesGainLoss	385000
CY2022	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	-39000
CY2021	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	166000
CY2020	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	-5000
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	20000
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-247000
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-77000
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	1817000
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	1193000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	1443000
CY2022	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	-0
CY2021	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	0
CY2020	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	38000
CY2022	fmnb	Bank Owned Life Insurance Income Excluding Death Benefit Insurance Income BankOwnedLifeInsuranceIncomeExcludingDeathBenefitInsuranceIncome	1626000
CY2021	fmnb	Bank Owned Life Insurance Income Excluding Death Benefit Insurance Income BankOwnedLifeInsuranceIncomeExcludingDeathBenefitInsuranceIncome	1298000
CY2020	fmnb	Bank Owned Life Insurance Income Excluding Death Benefit Insurance Income BankOwnedLifeInsuranceIncomeExcludingDeathBenefitInsuranceIncome	795000
CY2022	fmnb	Income Recognized From Death Benefit On Bank Owned Life Insurance IncomeRecognizedFromDeathBenefitOnBankOwnedLifeInsurance	184000
CY2021	fmnb	Income Recognized From Death Benefit On Bank Owned Life Insurance IncomeRecognizedFromDeathBenefitOnBankOwnedLifeInsurance	40000
CY2020	fmnb	Income Recognized From Death Benefit On Bank Owned Life Insurance IncomeRecognizedFromDeathBenefitOnBankOwnedLifeInsurance	0
CY2022	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	102150000
CY2021	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	398011000
CY2020	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	245060000
CY2022	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	105956000
CY2021	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	406381000
CY2020	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	255167000
CY2022	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2062000
CY2021	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	8285000
CY2020	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	11362000
CY2022	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-10065000
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	8081000
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	6431000
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	83685000
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	54933000
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	49066000
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	78265000
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	74376000
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	61117000
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	37190000
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	35175000
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	60341000
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	239240000
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	849941000
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	176212000
CY2022	fmnb	Proceeds From Sale Of Equity Securities ProceedsFromSaleOfEquitySecurities	72000
CY2021	fmnb	Proceeds From Sale Of Equity Securities ProceedsFromSaleOfEquitySecurities	258000
CY2020	fmnb	Proceeds From Sale Of Equity Securities ProceedsFromSaleOfEquitySecurities	67000
CY2022	fmnb	Purchase Of Equity Securities PurchaseOfEquitySecurities	78000
CY2021	fmnb	Purchase Of Equity Securities PurchaseOfEquitySecurities	68000
CY2020	fmnb	Purchase Of Equity Securities PurchaseOfEquitySecurities	842000
CY2022	fmnb	Distributions From Sbic Funds DistributionsFromSBICFunds	2740000
CY2021	fmnb	Distributions From Sbic Funds DistributionsFromSBICFunds	1261000
CY2020	fmnb	Distributions From Sbic Funds DistributionsFromSBICFunds	0
CY2022	fmnb	Purchases Of Sbic Funds PurchasesOfSBICFunds	3067000
CY2021	fmnb	Purchases Of Sbic Funds PurchasesOfSBICFunds	1116000
CY2020	fmnb	Purchases Of Sbic Funds PurchasesOfSBICFunds	0
CY2022	fmnb	Purchase Of Restricted Stock PurchaseOfRestrictedStock	5833000
CY2021	fmnb	Purchase Of Restricted Stock PurchaseOfRestrictedStock	22000
CY2020	fmnb	Purchase Of Restricted Stock PurchaseOfRestrictedStock	2843000
CY2022	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	3142000
CY2021	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	2198000
CY2020	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	5383000
CY2022	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	77198000
CY2021	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-231479000
CY2020	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	86741000
CY2022	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	0
CY2021	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	0
CY2020	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	241000
CY2022	fmnb	Proceeds From Boli Death Benefit ProceedsFromBoliDeathBenefit	693000
CY2021	fmnb	Proceeds From Boli Death Benefit ProceedsFromBoliDeathBenefit	352000
CY2020	fmnb	Proceeds From Boli Death Benefit ProceedsFromBoliDeathBenefit	0
CY2022	us-gaap	Payments For Proceeds From Life Insurance Policies PaymentsForProceedsFromLifeInsurancePolicies	0
CY2021	us-gaap	Payments For Proceeds From Life Insurance Policies PaymentsForProceedsFromLifeInsurancePolicies	0
CY2020	us-gaap	Payments For Proceeds From Life Insurance Policies PaymentsForProceedsFromLifeInsurancePolicies	15000000
CY2022	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	1399000
CY2021	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	37000
CY2020	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	502000
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5505000
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1375000
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3696000
CY2022	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	1033000
CY2021	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	-83773000
CY2020	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	2204000
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-208453000
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-423613000
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-159887000
CY2022	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	14533000
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	241083000
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	418663000
CY2022	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	95000000
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-6767000
CY2020	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-49529000
CY2022	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	0
CY2021	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	66980000
CY2020	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	47560000
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt And Capital Securities Net ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet	0
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt And Capital Securities Net ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet	73749000
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt And Capital Securities Net ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet	0
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	22004000
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	14072000
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	12654000
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	164000
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	14238000
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	87529000
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	226849000
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	294682000
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-37239000
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-141831000
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	183861000
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	112790000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	254621000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	70760000
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	75551000
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	112790000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	254621000
CY2022	us-gaap	Interest Paid Net InterestPaidNet	16461000
CY2021	us-gaap	Interest Paid Net InterestPaidNet	8482000
CY2020	us-gaap	Interest Paid Net InterestPaidNet	16515000
CY2022	us-gaap	Income Taxes Paid IncomeTaxesPaid	10100000
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	12500000
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	9000000
CY2022	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0
CY2021	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0
CY2020	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	73000
CY2022	us-gaap	Stock Issued1 StockIssued1	0
CY2021	us-gaap	Stock Issued1 StockIssued1	98921000
CY2020	us-gaap	Stock Issued1 StockIssued1	22554000
CY2022	fmnb	Issuance Of Stock Awards IssuanceOfStockAwards	2184000
CY2021	fmnb	Issuance Of Stock Awards IssuanceOfStockAwards	2136000
CY2020	fmnb	Issuance Of Stock Awards IssuanceOfStockAwards	1740000
CY2022	fmnb	Security Purchases Not Settled SecurityPurchasesNotSettled	0
CY2021	fmnb	Security Purchases Not Settled SecurityPurchasesNotSettled	0
CY2020	fmnb	Security Purchases Not Settled SecurityPurchasesNotSettled	3889000
CY2022	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="text-indent:0.0%;font-size:10.0pt;margin-top:12.0pt;font-family:Times New Roman;margin-bottom:0.0pt;text-align:justify;"><span style="background-color:rgba(0,0,0,0);color:rgba(0,0,0,1);white-space:pre-wrap;font-weight:bold;font-size:10.0pt;font-family:"Times New Roman", serif;font-style:italic;min-width:fit-content;">Concentration of Credit Risk:</span><span style="background-color:rgba(0,0,0,0);color:rgba(0,0,0,1);white-space:pre-wrap;font-weight:normal;font-size:10.0pt;font-family:"Times New Roman", serif;min-width:fit-content;"> There are no significant concentrations of loans to any one industry or customer. However, most of the Company’s business activity is with customers located within Northeastern Ohio. Therefore, the Company’s exposure to credit risk is significantly affected by changes in the economy of an </span><span style="font-size:10.0pt;font-family:"Times New Roman", serif;background-color:rgba(0,0,0,0);color:rgba(0,0,0,1);white-space:pre-wrap;font-weight:normal;font-size:10.0pt;font-family:"Times New Roman", serif;min-width:fit-content;">eleven</span><span style="background-color:rgba(0,0,0,0);color:rgba(0,0,0,1);white-space:pre-wrap;font-weight:normal;font-size:10.0pt;font-family:"Times New Roman", serif;min-width:fit-content;"> county area. Loans secured by real estate represent </span><span style="font-size:10.0pt;font-family:"Times New Roman", serif;background-color:rgba(0,0,0,0);color:rgba(0,0,0,1);white-space:pre-wrap;font-weight:normal;font-size:10.0pt;font-family:"Times New Roman", serif;min-width:fit-content;">68.2</span><span style="background-color:rgba(0,0,0,0);color:rgba(0,0,0,1);white-space:pre-wrap;font-weight:normal;font-size:10.0pt;font-family:"Times New Roman", serif;min-width:fit-content;">% of the total portfolio and changes related to the real estate markets are monitored by management.</span></p>
CY2022	fmnb	Number Of County Economy Consider For Credit Risk Purpose NumberOfCountyEconomyConsiderForCreditRiskPurpose	11
CY2022	fmnb	Percentage Of Portfolio Loans Secured By Real Estate PercentageOfPortfolioLoansSecuredByRealEstate	0.682
CY2022	fmnb	Number Of Locations Served By Bank NumberOfLocationsServedByBank	45
CY2022	us-gaap	Use Of Estimates UseOfEstimates	<p style="text-indent:0.0%;font-size:10.0pt;margin-top:12.0pt;font-family:Times New Roman;margin-bottom:0.0pt;text-align:justify;"><span style="background-color:rgba(0,0,0,0);color:rgba(0,0,0,1);white-space:pre-wrap;font-weight:bold;font-size:10.0pt;font-family:"Times New Roman", serif;font-style:italic;min-width:fit-content;">Estimates:</span><span style="background-color:rgba(0,0,0,0);color:rgba(0,0,0,1);white-space:pre-wrap;font-weight:normal;font-size:10.0pt;font-family:"Times New Roman", serif;min-width:fit-content;"> The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.</span><span style="color:rgba(0,0,0,1);white-space:pre-wrap;font-weight:bold;font-size:10.0pt;font-family:"Times New Roman", serif;font-style:italic;min-width:fit-content;"> </span></p>
CY2022	fmnb	Period Of Federal Fund Purchased And Sold PeriodOfFederalFundPurchasedAndSold	P1D
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	718367000
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	10925000
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	74575000
CY2022	fmnb	Delinquent Period Of Loans After Which Interest Income Is Discontinued DelinquentPeriodOfLoansAfterWhichInterestIncomeIsDiscontinued	P90D
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	2812000
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	792942000
CY2022Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	5280000
CY2021Q4	us-gaap	Other Real Estate OtherRealEstate	0
CY2022Q4	us-gaap	Other Real Estate OtherRealEstate	0
CY2022Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	18200000
CY2021Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	15600000
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	13737000
CY2022Q4	fmnb	Number Of Securities NumberOfSecurities	847
CY2022Q4	fmnb	Number Of Securities On Unrealized Loss Position NumberOfSecuritiesOnUnrealizedLossPosition	803
CY2022	fmnb	Percentage Of Tax Benefit Likelihood To Be Realized Upon Examination PercentageOfTaxBenefitLikelihoodToBeRealizedUponExamination	0.50
CY2022Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0
CY2022Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	6890000
CY2021Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	2400000
CY2022Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	26978000
CY2021	fmnb	Business Acquisitions Pro Forma Interest Income Expense Net BusinessAcquisitionsProFormaInterestIncomeExpenseNet	130005000
CY2020	fmnb	Business Acquisitions Pro Forma Interest Income Expense Net BusinessAcquisitionsProFormaInterestIncomeExpenseNet	120651000
CY2021	fmnb	Business Acquisitions Pro Forma Provision For Credit Losses BusinessAcquisitionsProFormaProvisionForCreditLosses	10893000
CY2020	fmnb	Business Acquisitions Pro Forma Provision For Credit Losses BusinessAcquisitionsProFormaProvisionForCreditLosses	10675000
CY2021	fmnb	Business Acquisitions Pro Forma Non Interest Income BusinessAcquisitionsProFormaNonInterestIncome	45393000
CY2020	fmnb	Business Acquisitions Pro Forma Non Interest Income BusinessAcquisitionsProFormaNonInterestIncome	43661000
CY2021	fmnb	Business Acquisitions Pro Forma Noninterest Expense BusinessAcquisitionsProFormaNoninterestExpense	94236000
CY2020	fmnb	Business Acquisitions Pro Forma Noninterest Expense BusinessAcquisitionsProFormaNoninterestExpense	93045000
CY2021	fmnb	Business Acquisitions Pro Forma Income Before Income Taxes BusinessAcquisitionsProFormaIncomeBeforeIncomeTaxes	70269000
CY2020	fmnb	Business Acquisitions Pro Forma Income Before Income Taxes BusinessAcquisitionsProFormaIncomeBeforeIncomeTaxes	60592000
CY2021	fmnb	Business Acquisitions Pro Forma Income Tax Expense BusinessAcquisitionsProFormaIncomeTaxExpense	11299000
CY2020	fmnb	Business Acquisitions Pro Forma Income Tax Expense BusinessAcquisitionsProFormaIncomeTaxExpense	33818000
CY2021	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	58970000
CY2020	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	50602000
CY2021	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	1.75
CY2020	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	1.50
CY2021	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	1.74
CY2020	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	1.49
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1534512000
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	278000
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	266765000
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1268025000
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1415959000
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	25455000
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	13737000
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1427677000
CY2021Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	29386000
CY2022Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	2377772000
CY2021Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	2301696000
CY2021Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	29386000
CY2022	fmnb	Provision For Credit Losses Expensed ProvisionForCreditLossesExpensed	250000
CY2022	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	3304000
CY2022	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	646000
CY2022Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	26978000
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	37190000
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	35175000
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	60341000
CY2022	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	6000
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	863000
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	394000
CY2022	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	421000
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	25000
CY2020	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	824000
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	87000
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-176000
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	90000
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	325000
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	321000
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	27624000
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	25346000
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	156929000
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	135626000
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	620720000
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	500762000
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	728914000
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	605970000
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1534512000
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1268025000
CY2022Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	479000000
CY2021Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	491000000
CY2022	fmnb	Number Of Securities Present More Than Specified Percentage NumberOfSecuritiesPresentMoreThanSpecifiedPercentage	0
CY2021	fmnb	Number Of Securities Present More Than Specified Percentage NumberOfSecuritiesPresentMoreThanSpecifiedPercentage	0
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	506824000
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	80411000
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	728881000
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	186354000
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1235705000
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	266765000
CY2020Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	22144000
CY2021	fmnb	Financing Receivable Allowance For Credit Losses Impact Of Cecl Adoption FinancingReceivableAllowanceForCreditLossesImpactOfCECLAdoption	2160000
CY2021	fmnb	Provision For Credit Losses Expensed ProvisionForCreditLossesExpensed	4649000
CY2021	fmnb	Financing Receivable Allowance For Credit Losses Pcdacl On Loans Acquired FinancingReceivableAllowanceForCreditLossesPCDACLOnLoansAcquired	1295000
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1667000
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	805000
CY2021Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	29386000
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	14487000
CY2020	fmnb	Provision For Loan Losses ProvisionForLoanLosses	9100000
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2053000
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	610000
CY2020Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	22144000
CY2022Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	14311000
CY2022Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	492000
CY2021Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	15470000
CY2021Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	725000
CY2022Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	2404750000
CY2021Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	2331082000
CY2022Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	5600000
CY2021Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	3900000
CY2022Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0
CY2021Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0
CY2022	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	31
CY2022	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	2720000
CY2022	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	2736000
CY2022	fmnb	Allowance For Loan Losses Period Increase Decrease AllowanceForLoanLossesPeriodIncreaseDecrease	64000
CY2022	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	66000
CY2021	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	39
CY2021	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1063000
CY2021	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1051000
CY2021	fmnb	Allowance For Loan Losses Period Increase Decrease AllowanceForLoanLossesPeriodIncreaseDecrease	127000
CY2021	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	129000
CY2020	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	45
CY2020	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	719000
CY2020	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	726000
CY2020	fmnb	Allowance For Loan Losses Period Increase Decrease AllowanceForLoanLossesPeriodIncreaseDecrease	65000
CY2020	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	65000
CY2022Q4	fmnb	Commercial Loan And Commercial Real Estate Risk Maximum CommercialLoanAndCommercialRealEstateRiskMaximum	1000000
CY2022Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1568399000
CY2021Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1555497000
CY2022	fmnb	Unfunded Commitments UnfundedCommitments	603000000
CY2022	fmnb	Anticipated Credit Losses AnticipatedCreditLosses	1400000
CY2022	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	478200000
CY2022Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	4000000.0
CY2022Q4	us-gaap	Escrow Deposit EscrowDeposit	4400000
CY2021Q4	us-gaap	Escrow Deposit EscrowDeposit	4000000.0
CY2021Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	3403000
CY2020Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	3198000
CY2019Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	1721000
CY2022	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	960000
CY2021	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	1556000
CY2020	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	2429000
CY2022	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	1015000
CY2021	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	1351000
CY2020	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	952000
CY2022Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	3348000
CY2021Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	3403000
CY2020Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	3198000
CY2022Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	17000
CY2021Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0
CY2020Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0
CY2022Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	3331000
CY2021Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	3403000
CY2020Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	3198000
CY2022Q4	fmnb	Securities Fair Value Less Than Amortized Cost SecuritiesFairValueLessThanAmortizedCost	0
CY2022	fmnb	Fair Value Assets And Liabilities Level1 And Level2 Transfers Amount FairValueAssetsAndLiabilitiesLevel1AndLevel2TransfersAmount	0
CY2021	fmnb	Fair Value Assets And Liabilities Level1 And Level2 Transfers Amount FairValueAssetsAndLiabilitiesLevel1AndLevel2TransfersAmount	0
CY2021Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	3000
CY2020Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	4000
CY2019Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	5000
CY2022	fmnb	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Repayments Calls And Maturities FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRepaymentsCallsAndMaturities	2000
CY2021	fmnb	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Repayments Calls And Maturities FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRepaymentsCallsAndMaturities	1000
CY2020	fmnb	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Repayments Calls And Maturities FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRepaymentsCallsAndMaturities	1000
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	0
CY2021	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	0
CY2020	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	0
CY2022Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	1000
CY2021Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	3000
CY2020Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	4000
CY2022Q4	fmnb	Other Real Estate Owned Measured At Fair Value Net OtherRealEstateOwnedMeasuredAtFairValueNet	0
CY2021Q4	fmnb	Other Real Estate Owned Measured At Fair Value Net OtherRealEstateOwnedMeasuredAtFairValueNet	0
CY2022Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	75551000
CY2022Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding	18200000
CY2022Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	858000
CY2022Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	2377772000
CY2022Q4	us-gaap	Deposits Deposits	3561768000
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	95000000
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	88211000
CY2021Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	112790000
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding	15510000
CY2021Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	4545000
CY2021Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	2301696000
CY2021Q4	us-gaap	Deposits Deposits	3547235000
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	87758000
CY2022	fmnb	Maximum Maturity Period Of Short Term Borrowings MaximumMaturityPeriodOfShortTermBorrowings	P90D
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	64726000
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	62439000
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	25553000
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	24919000
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	39173000
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	37520000
CY2022	us-gaap	Depreciation Nonproduction DepreciationNonproduction	2500000
CY2021	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1800000
CY2020	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1500000
CY2022Q4	fmnb	Operating Lease Right Of Use Asset Gross OperatingLeaseRightOfUseAssetGross	11005000
CY2021Q4	fmnb	Operating Lease Right Of Use Asset Gross OperatingLeaseRightOfUseAssetGross	8361000
CY2022Q4	fmnb	Operating Lease Right Of Use Asset Accumulated Amortization OperatingLeaseRightOfUseAssetAccumulatedAmortization	2596000
CY2021Q4	fmnb	Operating Lease Right Of Use Asset Accumulated Amortization OperatingLeaseRightOfUseAssetAccumulatedAmortization	2001000
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	8409000
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	6360000
CY2022	us-gaap	Lessee Operating Lease Description LesseeOperatingLeaseDescription	The Company has operating leases for branch office locations, vehicles and certain office equipment such as printers, copiers and faxes. The leases have remaining lease terms of up to 17.3 years, some of which include options to extend the lease for up to 15 years and some of which include options to terminate the lease in April of 2023.
CY2022	us-gaap	Lessee Operating Lease Existence Of Option To Extend LesseeOperatingLeaseExistenceOfOptionToExtend	true
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	8400000
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	8800000
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	6400000
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	6600000
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	985000
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	845000
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	187000
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	763000
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	154000
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	521000
CY2022Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P12Y6M29D
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y18D
CY2022Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0287
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0198
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	1600000
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1600000
CY2021	fmnb	Assets Sold Under Agreements To Repurchase Average Interest Rate During Year AssetsSoldUnderAgreementsToRepurchaseAverageInterestRateDuringYear	0.0018
CY2021	fmnb	Assets Sold Under Agreements To Repurchase Maximum Month End During Year AssetsSoldUnderAgreementsToRepurchaseMaximumMonthEndDuringYear	4860000
CY2021	fmnb	Assets Sold Under Agreements To Repurchase Weighted Average Year End Interest Rate AssetsSoldUnderAgreementsToRepurchaseWeightedAverageYearEndInterestRate	0.0000
CY2021Q4	us-gaap	Assets Sold Under Agreements To Repurchase Carrying Amounts AssetsSoldUnderAgreementsToRepurchaseCarryingAmounts	0
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	1074000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	905000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	865000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	831000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	821000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	5992000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	10488000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1723000
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	8765000
CY2022Q4	us-gaap	Goodwill Goodwill	94600000
CY2021Q4	us-gaap	Goodwill Goodwill	94200000
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	21659000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	14633000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	21026000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	12660000
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2000000.0
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1400000
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1300000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1255000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	952000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	886000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	789000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	676000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	2468000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	7026000
CY2022Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	0
CY2022Q4	fmnb	Noninterest Bearing Demand NoninterestBearingDemand	896957000
CY2021Q4	fmnb	Noninterest Bearing Demand NoninterestBearingDemand	916237000
CY2022Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	1224884000
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	1407967000
CY2022Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	435369000
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	370918000
CY2022Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	441978000
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	463845000
CY2022Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	138051000
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	0
CY2022Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	424529000
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	388268000
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	3561768000
CY2021Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	3547235000
CY2022Q4	fmnb	Minimum Time Deposits MinimumTimeDeposits	250000
CY2022Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	135700000
CY2021Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	133800000
CY2022	fmnb	Maturity Period Of Repurchase Agreement MaturityPeriodOfRepurchaseAgreement	P89D
CY2021	fmnb	Assets Sold Under Agreements To Repurchase Average During Year AssetsSoldUnderAgreementsToRepurchaseAverageDuringYear	2354000
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	0
CY2022Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	1200000000
CY2021Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	1200000000
CY2022Q4	fmnb	Additional Federal Home Loan Bank Advances To Be Borrow Under Collateral Pledge AdditionalFederalHomeLoanBankAdvancesToBeBorrowUnderCollateralPledge	623900000
CY2022Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	14316000
CY2021Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	13988000
CY2022Q4	us-gaap	Subordinated Debt SubordinatedDebt	73895000
CY2021Q4	us-gaap	Subordinated Debt SubordinatedDebt	73770000
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	88211000
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	87758000
CY2022	fmnb	Maximum Commitment Period To Make Loans MaximumCommitmentPeriodToMakeLoans	P30D
CY2022	fmnb	Standby Letters Of Credit Contractual Amount StandbyLettersOfCreditContractualAmount	8800000
CY2021	fmnb	Standby Letters Of Credit Contractual Amount StandbyLettersOfCreditContractualAmount	5800000
CY2022Q4	fmnb	Maximum Subscription Amount Committed In Sbic Investment Funds MaximumSubscriptionAmountCommittedInSBICInvestmentFunds	20200000
CY2022	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	16200000
CY2022Q4	fmnb	Tier One Risk Based Common Capital Required For Capital Adequacy To Risk Weighted Assets Capital Conservation Buffer Ratio TierOneRiskBasedCommonCapitalRequiredForCapitalAdequacyToRiskWeightedAssetsCapitalConservationBufferRatio	0.025
CY2022Q4	fmnb	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Capital Conservation Buffer Ratio TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssetsCapitalConservationBufferRatio	0.025
CY2021Q4	fmnb	Capital Conservation Buffer Ratio CapitalConservationBufferRatio	0.025
CY2022Q4	fmnb	Capital Conservation Buffer Ratio CapitalConservationBufferRatio	0.025
CY2022Q4	fmnb	Capital Required For Capital Adequacy To Risk Weighted Assets Capital Conservation Buffer Ratio CapitalRequiredForCapitalAdequacyToRiskWeightedAssetsCapitalConservationBufferRatio	0.025
CY2022Q4	fmnb	Capital Conservation Buffer Additional Capital Amount Required CapitalConservationBufferAdditionalCapitalAmountRequired	73500000
CY2021Q4	fmnb	Capital Conservation Buffer Additional Capital Amount Required CapitalConservationBufferAdditionalCapitalAmountRequired	68900000
CY2022Q4	fmnb	Tier One Risk Based Common Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCommonCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.045
CY2022Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.060
CY2022Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.080
CY2022Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2022Q4	fmnb	Tier One Common Capital TierOneCommonCapital	403307000
CY2022Q4	fmnb	Tier One Common Capital Ratio TierOneCommonCapitalRatio	0.1371
CY2022Q4	fmnb	Tier One Risk Based Common Capital Required For Capital Adequacy TierOneRiskBasedCommonCapitalRequiredForCapitalAdequacy	132349000
CY2022Q4	fmnb	Tier One Risk Based Common Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCommonCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.045
CY2022Q4	us-gaap	Capital Capital	523285000
CY2022Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1779
CY2022Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	235288000
CY2022Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.080
CY2022Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	421307000
CY2022Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1432
CY2022Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	176466000
CY2022Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.060
CY2022Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	421307000
CY2022Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0984
CY2022Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	171233000
CY2022Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2021Q4	fmnb	Tier One Common Capital TierOneCommonCapital	362950000
CY2021Q4	fmnb	Tier One Common Capital Ratio TierOneCommonCapitalRatio	0.1316
CY2021Q4	fmnb	Tier One Risk Based Common Capital Required For Capital Adequacy TierOneRiskBasedCommonCapitalRequiredForCapitalAdequacy	132921000
CY2021Q4	fmnb	Tier One Risk Based Common Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCommonCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.045
CY2021Q4	us-gaap	Capital Capital	485336000
CY2021Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1760
CY2021Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	236303000
CY2021Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.080
CY2021Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	380950000
CY2021Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1382
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	177228000
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.060
CY2021Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	380950000
CY2021Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.1012
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	161179000
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2022Q4	us-gaap	Liability For Future Policy Benefits Disability And Accident Benefits LiabilityForFuturePolicyBenefitsDisabilityAndAccidentBenefits	238000
CY2022	us-gaap	Liability For Future Policy Benefit Remeasurement Gain Loss LiabilityForFuturePolicyBenefitRemeasurementGainLoss	5000
CY2021	us-gaap	Liability For Future Policy Benefit Remeasurement Gain Loss LiabilityForFuturePolicyBenefitRemeasurementGainLoss	31000
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	6171000
CY2022Q4	us-gaap	Deferred Tax Assets Other Comprehensive Loss DeferredTaxAssetsOtherComprehensiveLoss	55962000
CY2021Q4	us-gaap	Deferred Tax Assets Other Comprehensive Loss DeferredTaxAssetsOtherComprehensiveLoss	0
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	1748000
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	1993000
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	10885000
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	10794000
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	9922000
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1353000
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-524000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1526000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12238000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10270000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8396000
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	15295000
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	13026000
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	10557000
CY2022	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	2591000
CY2021	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	2274000
CY2020	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	1896000
CY2022	fmnb	Income Tax Reconciliation Bank Owned Life Insurance Income IncomeTaxReconciliationBankOwnedLifeInsuranceIncome	380000
CY2021	fmnb	Income Tax Reconciliation Bank Owned Life Insurance Income IncomeTaxReconciliationBankOwnedLifeInsuranceIncome	273000
CY2020	fmnb	Income Tax Reconciliation Bank Owned Life Insurance Income IncomeTaxReconciliationBankOwnedLifeInsuranceIncome	167000
CY2022	us-gaap	Income Tax Credits And Adjustments IncomeTaxCreditsAndAdjustments	-194000
CY2021	us-gaap	Income Tax Credits And Adjustments IncomeTaxCreditsAndAdjustments	-200000
CY2020	us-gaap	Income Tax Credits And Adjustments IncomeTaxCreditsAndAdjustments	23000
CY2022	fmnb	Income Tax Reconciliation Effect Of Nontaxable Insurance Premiums IncomeTaxReconciliationEffectOfNontaxableInsurancePremiums	318000
CY2021	fmnb	Income Tax Reconciliation Effect Of Nontaxable Insurance Premiums IncomeTaxReconciliationEffectOfNontaxableInsurancePremiums	322000
CY2020	fmnb	Income Tax Reconciliation Effect Of Nontaxable Insurance Premiums IncomeTaxReconciliationEffectOfNontaxableInsurancePremiums	198000
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-63000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-9000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	12000
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	489000
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	322000
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	65000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12238000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10270000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8396000
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	5665000
CY2022Q4	fmnb	Deferred Tax Assets Tax Deferred Expense Deferred Loan Fees DeferredTaxAssetsTaxDeferredExpenseDeferredLoanFees	275000
CY2021Q4	fmnb	Deferred Tax Assets Tax Deferred Expense Deferred Loan Fees DeferredTaxAssetsTaxDeferredExpenseDeferredLoanFees	531000
CY2022Q4	fmnb	Deferred Tax Assets Nonaccrual Loan Interest Income DeferredTaxAssetsNonaccrualLoanInterestIncome	648000
CY2021Q4	fmnb	Deferred Tax Assets Nonaccrual Loan Interest Income DeferredTaxAssetsNonaccrualLoanInterestIncome	571000
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	501000
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	423000
CY2022Q4	fmnb	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	1841000
CY2021Q4	fmnb	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	1382000
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	0
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	158000
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	66640000
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	11229000
CY2022Q4	fmnb	Deferred Tax Liabilities Depreciation And Amortization DeferredTaxLiabilitiesDepreciationAndAmortization	1485000
CY2021Q4	fmnb	Deferred Tax Liabilities Depreciation And Amortization DeferredTaxLiabilitiesDepreciationAndAmortization	1391000
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CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-3396000
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CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	385000
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	90000
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	475000
CY2020	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	16266000
CY2020	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	4060000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	12206000
CY2022	fmnb	Noninterest Expense Excluding Amortization And Depreciation NoninterestExpenseExcludingAmortizationAndDepreciation	89512000
CY2022	us-gaap	Depreciation And Amortization DepreciationAndAmortization	4899000
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	72835000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12238000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	60597000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	51844000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	41876000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	33844945
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	29167357
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	28266509
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.79
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.78
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.48
CY2022	us-gaap	Net Income Loss NetIncomeLoss	60597000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	51844000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	41876000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	33844945
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	29167357
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	28266509
CY2022	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	83994
CY2021	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	112430
CY2020	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	127487
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	33928939
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	29279787
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	28393996
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.79
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.77
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.47
CY2022Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	101666000
CY2022Q4	us-gaap	Assets Assets	4082200000
CY2021Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	102606000
CY2021Q4	us-gaap	Assets Assets	4142749000
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	124166000
CY2022	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1122000
CY2022	fmnb	Service Fees Security Gains And Other Noninterest Income ServiceFeesSecurityGainsAndOtherNoninterestIncome	44202000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	60597000
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	107990000
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	4893000
CY2021	fmnb	Service Fees Security Gains And Other Noninterest Income ServiceFeesSecurityGainsAndOtherNoninterestIncome	38193000
CY2021	fmnb	Noninterest Expense Excluding Amortization And Depreciation NoninterestExpenseExcludingAmortizationAndDepreciation	75637000
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	3539000
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	62114000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10270000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	51844000
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	96191000
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	9100000
CY2020	fmnb	Service Fees Security Gains And Other Noninterest Income ServiceFeesSecurityGainsAndOtherNoninterestIncome	36161000
CY2020	fmnb	Noninterest Expense Excluding Amortization And Depreciation NoninterestExpenseExcludingAmortizationAndDepreciation	69858000
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	3122000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	50272000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8396000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	41876000
CY2022Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	38111000
CY2022Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	36410000
CY2022Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	34286000
CY2022Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	33279000
CY2022Q4	us-gaap	Interest Expense InterestExpense	8679000
CY2022Q3	us-gaap	Interest Expense InterestExpense	4629000
CY2022Q2	us-gaap	Interest Expense InterestExpense	2575000
CY2022Q1	us-gaap	Interest Expense InterestExpense	2037000
CY2022Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	29432000
CY2022Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	31781000
CY2022Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	31711000
CY2022Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	31242000
CY2022Q4	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	416000
CY2022Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	448000
CY2022Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	616000
CY2022Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-358000
CY2022Q4	us-gaap	Noninterest Income NoninterestIncome	8200000
CY2022Q3	us-gaap	Noninterest Income NoninterestIncome	8827000
CY2022Q2	us-gaap	Noninterest Income NoninterestIncome	9477000
CY2022Q1	us-gaap	Noninterest Income NoninterestIncome	17698000
CY2022Q4	fmnb	Merger Related Costs Incomes MergerRelatedCostsIncomes	584000
CY2022Q3	fmnb	Merger Related Costs Incomes MergerRelatedCostsIncomes	872000
CY2022Q2	fmnb	Merger Related Costs Incomes MergerRelatedCostsIncomes	674000
CY2022Q1	fmnb	Merger Related Costs Incomes MergerRelatedCostsIncomes	1940000
CY2022Q4	fmnb	Noninterest Expense Excluding Merger Costs NoninterestExpenseExcludingMergerCosts	20511000
CY2022Q3	fmnb	Noninterest Expense Excluding Merger Costs NoninterestExpenseExcludingMergerCosts	20527000
CY2022Q2	fmnb	Noninterest Expense Excluding Merger Costs NoninterestExpenseExcludingMergerCosts	20787000
CY2022Q1	fmnb	Noninterest Expense Excluding Merger Costs NoninterestExpenseExcludingMergerCosts	28516000
CY2022Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	16121000
CY2022Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	18761000
CY2022Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	19111000
CY2022Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	18842000
CY2022Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2765000
CY2022Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3315000
CY2022Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3160000
CY2022Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2998000
CY2022Q4	us-gaap	Net Income Loss NetIncomeLoss	13356000
CY2022Q3	us-gaap	Net Income Loss NetIncomeLoss	15446000
CY2022Q2	us-gaap	Net Income Loss NetIncomeLoss	15951000
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	15844000
CY2022Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.39
CY2022Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.46
CY2022Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.47
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.47
CY2021Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	31685000
CY2021Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	28375000
CY2021Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	28609000
CY2021Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	27790000
CY2021Q4	us-gaap	Interest Expense InterestExpense	1986000
CY2021Q3	us-gaap	Interest Expense InterestExpense	1841000
CY2021Q2	us-gaap	Interest Expense InterestExpense	2119000
CY2021Q1	us-gaap	Interest Expense InterestExpense	2523000
CY2021Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	29699000
CY2021Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	26534000
CY2021Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	26490000
CY2021Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	25267000
CY2021Q4	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	5366000
CY2021Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-948000
CY2021Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	50000
CY2021Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	425000
CY2021Q4	us-gaap	Noninterest Income NoninterestIncome	9538000
CY2021Q3	us-gaap	Noninterest Income NoninterestIncome	9015000
CY2021Q2	us-gaap	Noninterest Income NoninterestIncome	9508000
CY2021Q1	us-gaap	Noninterest Income NoninterestIncome	10132000
CY2021Q4	fmnb	Merger Related Costs Incomes MergerRelatedCostsIncomes	6521000
CY2021Q3	fmnb	Merger Related Costs Incomes MergerRelatedCostsIncomes	472000
CY2021Q2	fmnb	Merger Related Costs Incomes MergerRelatedCostsIncomes	104000
CY2021Q1	fmnb	Merger Related Costs Incomes MergerRelatedCostsIncomes	12000
CY2021Q4	fmnb	Noninterest Expense Excluding Merger Costs NoninterestExpenseExcludingMergerCosts	21140000
CY2021Q3	fmnb	Noninterest Expense Excluding Merger Costs NoninterestExpenseExcludingMergerCosts	16656000
CY2021Q2	fmnb	Noninterest Expense Excluding Merger Costs NoninterestExpenseExcludingMergerCosts	16966000
CY2021Q1	fmnb	Noninterest Expense Excluding Merger Costs NoninterestExpenseExcludingMergerCosts	17305000
CY2021Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6210000
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	19369000
CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	18878000
CY2021Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	17657000
CY2021Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	508000
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3358000
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3303000
CY2021Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3101000
CY2021Q4	us-gaap	Net Income Loss NetIncomeLoss	5702000
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	16011000
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	15575000
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	14556000
CY2021Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.18
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.56
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.55
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2022Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	600000
CY2021Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	0
CY2022	dei	Auditor Firm AuditorFirmId	655

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FARMERS NATIONAL BANC CORP /OH/ Stock $fmnb

2023 Q1 Form 10-K Financial Statement

#000095017023007035 Filed on March 09, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FMNB FARMERS NATIONAL BANC CORP /OH/ Stock $fmnb

2023 Q1 Form 10-K Financial Statement

#000095017023007035 Filed on March 09, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FMNB
FARMERS NATIONAL BANC CORP /OH/ Stock $fmnb