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

$fmnb Overview Financials Valuation SEC Filings Company Website

2016 Q4 Form 10-K Financial Statement

#000156459018004502 Filed on March 06, 2018

Income Statement

Concept	2016 Q4	2016 Q3	2016 Q2
Revenue	$18.47M	$18.33M	$17.95M
YoY Change	5.65%	17.56%	66.93%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development			$233.0K
YoY Change
% of Gross Profit
Depreciation & Amortization	$920.0K	$960.0K	$890.0K
YoY Change	-13.21%	28.0%	89.36%
% of Gross Profit
Operating Expenses			$233.0K
YoY Change
Operating Profit
YoY Change
Interest Expense	$1.178M	$1.139M	$1.061M
YoY Change	15.15%	7.86%	5.68%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$7.377M	$7.343M	$6.853M
YoY Change	83.37%	195.85%	461.26%
Income Tax	$2.014M	$1.967M	$1.833M
% Of Pretax Income	27.3%	26.79%	26.75%
Net Earnings	$5.363M	$5.376M	$5.020M
YoY Change	68.91%	189.5%	518.23%
Net Earnings / Revenue	29.04%	29.33%	27.97%
Basic Earnings Per Share		$0.20	$0.19
Diluted Earnings Per Share	$196.5K	$0.20	$0.19
COMMON SHARES
Basic Shares Outstanding	27.05M	27.26M	27.09M
Diluted Shares Outstanding		27.29M	27.10M

Balance Sheet

Concept	2016 Q4	2016 Q3	2016 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents
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	$23.23M	$23.50M	$24.10M
YoY Change	-3.99%	0.86%	2.55%
Goodwill	$37.16M
YoY Change	5.91%
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	$1.966B	$1.961B	$1.925B
YoY Change	5.15%	14.83%	15.11%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$198.5M	$96.50M	$83.20M
YoY Change	-12.12%	15.71%	-2.92%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$78.50M	$96.50M	$83.20M
YoY Change	-65.23%	15.71%	-2.92%
LONG-TERM LIABILITIES
Long-Term Debt	$15.00M	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$14.60M	$17.60M	$17.30M
YoY Change	-1.35%	50.43%	26.28%
Total Long-Term Liabilities	$29.60M	$17.60M	$17.30M
YoY Change	100.0%	50.43%	26.28%
TOTAL LIABILITIES
Total Short-Term Liabilities	$78.50M	$96.50M	$83.20M
Total Long-Term Liabilities	$29.60M	$17.60M	$17.30M
Total Liabilities	$1.753B	$1.746B	$1.713B
YoY Change	4.85%	14.72%	14.96%
SHAREHOLDERS EQUITY
Retained Earnings	$42.55M
YoY Change	61.68%
Common Stock	$178.3M
YoY Change	1.15%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$4.857M
YoY Change	3.58%
Treasury Stock Shares	$666.1K
Shareholders Equity	$213.2M	$215.4M	$212.5M
YoY Change
Total Liabilities & Shareholders Equity	$1.966B	$1.961B	$1.925B
YoY Change	5.15%	14.83%	15.11%

Cashflow Statement

Concept	2016 Q4	2016 Q3	2016 Q2
OPERATING ACTIVITIES
Net Income	$5.363M	$5.376M	$5.020M
YoY Change	68.91%	189.5%	518.23%
Depreciation, Depletion And Amortization	$920.0K	$960.0K	$890.0K
YoY Change	-13.21%	28.0%	89.36%
Cash From Operating Activities	$10.68M	$6.210M	$5.110M
YoY Change	-1168.0%	51.83%	116.53%
INVESTING ACTIVITIES
Capital Expenditures	-$280.0K	-$50.00K	-$180.0K
YoY Change	100.0%	-89.36%	-64.0%
Acquisitions
YoY Change
Other Investing Activities	-$45.23M	-$32.43M	-$28.18M
YoY Change	557.41%	-17.59%	-343.56%
Cash From Investing Activities	-$45.51M	-$32.48M	-$28.36M
YoY Change	548.29%	-18.43%	-356.19%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	9.240M	31.45M	50.82M
YoY Change	-68.89%	-4.81%	-1626.13%
NET CHANGE
Cash From Operating Activities	10.68M	6.210M	5.110M
Cash From Investing Activities	-45.51M	-32.48M	-28.36M
Cash From Financing Activities	9.240M	31.45M	50.82M
Net Change In Cash	-25.59M	5.180M	27.57M
YoY Change	-218.04%	-292.57%	172.97%
FREE CASH FLOW
Cash From Operating Activities	$10.68M	$6.210M	$5.110M
Capital Expenditures	-$280.0K	-$50.00K	-$180.0K
Free Cash Flow	$10.96M	$6.260M	$5.290M
YoY Change	-1374.42%	37.28%	84.97%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2017Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	272000
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2017	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2017Q2	dei	Entity Public Float EntityPublicFloat	392500000
CY2018Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	27554207
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	7168000
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017	dei	Trading Symbol TradingSymbol	FMNB
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-31
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2015	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1247000
CY2017	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	3066000
CY2015	us-gaap	Noninterest Income NoninterestIncome	18306000
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	fmnb	Provision Reversal For Loan Losses Expensed ProvisionReversalForLoanLossesExpensed	3350000
CY2017	fmnb	Retirement Plan Consulting Fees RetirementPlanConsultingFees	1857000
CY2017	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	919000
CY2017	us-gaap	Fees And Commissions Debit Cards FeesAndCommissionsDebitCards	3089000
CY2016	us-gaap	Fees And Commissions Debit Cards FeesAndCommissionsDebitCards	2661000
CY2015	us-gaap	Fees And Commissions Debit Cards FeesAndCommissionsDebitCards	1882000
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-2823000
CY2017	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	973000
CY2016	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	930000
CY2015	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	676000
CY2015	us-gaap	Other Noninterest Expense OtherNoninterestExpense	4895000
CY2015	us-gaap	Noninterest Expense NoninterestExpense	53979000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	32780000
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	28042000
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	10554000
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2499000
CY2015	us-gaap	Net Income Loss NetIncomeLoss	8055000
CY2015	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.36
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-1403000
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	94000
CY2015	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-1497000
CY2015	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-524000
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	3317000
CY2015	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-973000
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	20000
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	7000
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	13000
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3281000
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2924000
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-960000
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	25992000
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	17633000
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	7095000
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	198047000
CY2017	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	3139000
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	3286000
CY2017Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	280200000
CY2015	us-gaap	Occupancy Net OccupancyNet	5452000
CY2015	us-gaap	Professional Fees ProfessionalFees	3180000
CY2015	us-gaap	Labor And Related Expense LaborAndRelatedExpense	26638000
CY2015	us-gaap	Advertising Expense AdvertisingExpense	1479000
CY2015	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	937000
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	983000
CY2015	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	1171000
CY2015	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	6392000
CY2016	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2699000
CY2015	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2176000
CY2015	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	196000
CY2017	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	61
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	3090000
CY2017	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	70000
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	4282000
CY2017	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3
CY2017	us-gaap	Other Noninterest Expense OtherNoninterestExpense	7331000
CY2016	us-gaap	Other Noninterest Expense OtherNoninterestExpense	8458000
CY2017	us-gaap	Noninterest Expense NoninterestExpense	61567000
CY2016	us-gaap	Noninterest Expense NoninterestExpense	59452000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10069000
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7485000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	22711000
CY2016	us-gaap	Net Income Loss NetIncomeLoss	20557000
CY2017	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.82
CY2016	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.76
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	5107000
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-4270000
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	4000
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	73000
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	5103000
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-4343000
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	1786000
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-1520000
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-55000
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-156000
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-19000
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-55000
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-36000
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-101000
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CY2015	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	3204000
CY2015	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1040000
CY2017	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	45377000
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	2361000
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	892000
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	486000
CY2017	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	-20000
CY2016	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	-277000
CY2015	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	-286000
CY2017	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	831000
CY2016	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	814000
CY2015	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	702000
CY2017	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	56810000
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CY2015	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	2751000
CY2017	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1823000
CY2016	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	2216000
CY2015	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	2275000
CY2017	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	-53000
CY2016	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	238000
CY2015	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	0
CY2016	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	64599000
CY2015	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	46201000
CY2017	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	59959000
CY2016	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	68856000
CY2015	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	46455000
CY2017	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	2139000
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CY2015	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	9397000
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	30566000
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	24495000
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	6323000
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	43104000
CY2016	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	59904000
CY2015	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	63243000
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	54497000
CY2016	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	11493000
CY2015	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	102257000
CY2017	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	114600000
CY2016	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	52628000
CY2015	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	72683000
CY2017	fmnb	Purchase Of Restricted Stock PurchaseOfRestrictedStock	842000
CY2016	fmnb	Purchase Of Restricted Stock PurchaseOfRestrictedStock	200000
CY2015	fmnb	Purchase Of Restricted Stock PurchaseOfRestrictedStock	0
CY2017	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	132597000
CY2016	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	133248000
CY2015	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	139656000
CY2017	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	643000
CY2016	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	665000
CY2015	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	553000
CY2017	us-gaap	Payments For Proceeds From Life Insurance Policies PaymentsForProceedsFromLifeInsurancePolicies	3000000
CY2016	us-gaap	Payments For Proceeds From Life Insurance Policies PaymentsForProceedsFromLifeInsurancePolicies	0
CY2015	us-gaap	Payments For Proceeds From Life Insurance Policies PaymentsForProceedsFromLifeInsurancePolicies	6000000
CY2017	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	439000
CY2016	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	479000
CY2015	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	723000
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	956000
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	788000
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1299000
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-16203000
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1073000
CY2015	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-29749000
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-137109000
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-115396000
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-23113000
CY2016	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	115709000
CY2015	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-44659000
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	91105000
CY2016	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-27372000
CY2015	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	91159000
CY2017	us-gaap	Proceeds From Repayments Of Long Term Debt And Capital Securities ProceedsFromRepaymentsOfLongTermDebtAndCapitalSecurities	-8091000
CY2016	us-gaap	Proceeds From Repayments Of Long Term Debt And Capital Securities ProceedsFromRepaymentsOfLongTermDebtAndCapitalSecurities	-7178000
CY2015	us-gaap	Proceeds From Repayments Of Long Term Debt And Capital Securities ProceedsFromRepaymentsOfLongTermDebtAndCapitalSecurities	-3228000
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0
CY2015	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	5000000
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	6012000
CY2016	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	4326000
CY2015	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	2683000
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	168000
CY2015	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	213000
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	122379000
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	76665000
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	45376000
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	15836000
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-14236000
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	28586000
CY2015Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	56014000
CY2014Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	27428000
CY2017	us-gaap	Interest Paid InterestPaid	6754000
CY2016	us-gaap	Interest Paid InterestPaid	4316000
CY2015	us-gaap	Interest Paid InterestPaid	4047000
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	8800000
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	9410000
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	2620000
CY2017	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	279000
CY2016	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	482000
CY2015	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	888000
CY2017	us-gaap	Stock Issued1 StockIssued1	6358000
CY2016	us-gaap	Stock Issued1 StockIssued1	1138000
CY2015	us-gaap	Stock Issued1 StockIssued1	69780000
CY2017	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	85000
CY2016	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	880000
CY2015	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0
CY2017	fmnb	Security Purchases Not Settled SecurityPurchasesNotSettled	0
CY2016	fmnb	Security Purchases Not Settled SecurityPurchasesNotSettled	927000
CY2015	fmnb	Security Purchases Not Settled SecurityPurchasesNotSettled	1338000
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:0%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">Estimates:<font style="font-weight:normal;font-style:normal;"> 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.</font></p></div>
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	1611000
CY2017Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	5536000
CY2017	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:0%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">Concentration of Credit Risk:<font style="font-weight:normal;font-style:normal;"> 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 a nine county area.  Loans secured by real estate represent 69.8% of the total portfolio and changes related to the real estate markets are monitored by management.</font></p></div>
CY2017	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	<div> <p style="margin-bottom:0pt;margin-top:2pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The following table provides a disaggregation of the obligation by class of collateral pledged for short-term financing obtained through the sales of repurchase agreements:</p> <p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p> <div> <table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:100%;"> <tr> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:66.84%; border-bottom:solid 0.75pt transparent;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-bottom:solid 0.75pt transparent;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:13.9%; border-bottom:solid 0.75pt #000000;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">2017</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-bottom:solid 0.75pt transparent;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:13.9%; border-bottom:solid 0.75pt #000000;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">2016</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> </tr> <tr> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:66.84%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Overnight and continuous repurchase agreements</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.66%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.9%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.66%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.9%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> </tr> <tr> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:66.84%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:13.7pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">U.S. Treasury and U.S. government sponsored entities</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.66%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">$</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.9%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">4,811</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.66%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">$</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.9%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">6,555</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> </tr> <tr> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:66.84%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:13.7pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">State and political subdivisions</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.66%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.9%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">20,696</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.66%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.9%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">12,304</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> </tr> <tr> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:66.84%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:13.7pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Mortgage-backed securities - residential</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.66%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.9%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">43,936</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.66%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.9%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">52,628</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> </tr> <tr> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:66.84%; border-bottom:solid 0.75pt transparent;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:13.7pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Collateralized mortgage obligations</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-bottom:solid 0.75pt transparent;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.9%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">4,772</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-bottom:solid 0.75pt transparent;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.9%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">6,623</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> </tr> <tr> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:66.84%; border-bottom:double 2.5pt transparent;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Total borrowings</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-bottom:double 2.5pt transparent;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">$</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.9%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">74,215</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-bottom:double 2.5pt transparent;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">$</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.9%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">78,110</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:1pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> </tr> </table></div> <p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"> </p></div>
CY2017Q4	us-gaap	Other Real Estate OtherRealEstate	171000
CY2016Q4	us-gaap	Other Real Estate OtherRealEstate	482000
CY2017	fmnb	Number Of Locations Served By Bank NumberOfLocationsServedByBank	39
CY2017	fmnb	Period Of Federal Fund Purchased And Sold PeriodOfFederalFundPurchasedAndSold	P1D
CY2017	fmnb	Delinquent Period Of Loans After Which Interest Income Is Discontinued DelinquentPeriodOfLoansAfterWhichInterestIncomeIsDiscontinued	P90D
CY2017	fmnb	Number Of County Economy Consider For Credit Risk Purpose NumberOfCountyEconomyConsiderForCreditRiskPurpose	9
CY2017	fmnb	Percentage Of Portfolio Loans Secured By Real Estate PercentageOfPortfolioLoansSecuredByRealEstate	0.698
CY2017	fmnb	Minimum Amount Of Commercial And Commercial Real Estate Loans On Which Impairment To Be Made MinimumAmountOfCommercialAndCommercialRealEstateLoansOnWhichImpairmentToBeMade	750000
CY2017Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	10500000
CY2016Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	9600000
CY2017	fmnb	Percentage Of Tax Benefit Likelihood To Be Realized Upon Examination PercentageOfTaxBenefitLikelihoodToBeRealizedUponExamination	0.50
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	30000000
CY2016Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	16400000
CY2017Q4	us-gaap	Capital Leases Balance Sheet Assets By Major Class Net CapitalLeasesBalanceSheetAssetsByMajorClassNet	2900000
CY2016	fmnb	Business Acquisitions Pro Forma Interest Income Expense Net BusinessAcquisitionsProFormaInterestIncomeExpenseNet	69341000
CY2016	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	20661000
CY2016	fmnb	Business Acquisition Pro Forma Earnings Per Share Basic And Diluted BusinessAcquisitionProFormaEarningsPerShareBasicAndDiluted	0.77
CY2017Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	392576000
CY2017Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	4253000
CY2017Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	3498000
CY2016Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	374343000
CY2016Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	2263000
CY2016Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	6611000
CY2017	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	727000
CY2016	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	389000
CY2015	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	908000
CY2017	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	723000
CY2016	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	316000
CY2015	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	814000
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	2000
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	26000
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	33000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	19061000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	47277000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	119195000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	12723000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	194141000
CY2017Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	392397000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	19030000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	47585000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	121866000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	12673000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	191783000
CY2017Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	392937000
CY2017Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	269000000
CY2016Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	242000000
CY2017	fmnb	Number Of Securities Present More Than Specified Percentage NumberOfSecuritiesPresentMoreThanSpecifiedPercentage	0
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	79350000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	680000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	111378000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	2818000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	190728000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	3498000
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	212479000
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	4945000
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	49393000
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	1666000
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	261872000
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	6611000
CY2017	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0
CY2016	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0
CY2015	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0
CY2017Q4	fmnb	Number Of Securities NumberOfSecurities	550
CY2017Q4	fmnb	Number Of Securities On Unrealized Loss Position NumberOfSecuritiesOnUnrealizedLossPosition	184
CY2016Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	247000
CY2017	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Additions CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdditions	0
CY2017	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	77000
CY2016	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	76000
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1399000
CY2015Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	8978000
CY2016	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2801000
CY2016	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	805000
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	162000
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	12048000
CY2017Q4	fmnb	Financing Receivable Allowance For Credit Loss Acquired Loans Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossAcquiredLoansCollectivelyEvaluatedForImpairment	105000
CY2017Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	5536000
CY2017Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1259993000
CY2017Q4	fmnb	Financing Receivable Acquired Loans FinancingReceivableAcquiredLoans	310118000
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	249000
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	10603000
CY2016Q4	fmnb	Financing Receivable Allowance For Credit Loss Acquired Loans Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossAcquiredLoansCollectivelyEvaluatedForImpairment	0
CY2016Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	7338000
CY2016Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1048074000
CY2016Q4	fmnb	Financing Receivable Acquired Loans FinancingReceivableAcquiredLoans	370359000
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	1636000
CY2017Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	5918000
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	3925000
CY2017Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	162000
CY2017	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	3757000
CY2017	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	1892000
CY2017	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	5649000
CY2017	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	180000
CY2017	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	250000
CY2016Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	5561000
CY2016Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	2710000
CY2016Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	8271000
CY2016Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	4649000
CY2016Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	2689000
CY2016Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	7338000
CY2016Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	249000
CY2016	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	5196000
CY2016	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	3374000
CY2016	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	8570000
CY2016	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	258000
CY2016	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	140000
CY2016	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	398000
CY2015Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	7205000
CY2015Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	4014000
CY2015Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	11219000
CY2015Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	6090000
CY2015Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	3992000
CY2016Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	226770000
CY2017Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	263905000
CY2015	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	335000
CY2015	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	531000
CY2015Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	10082000
CY2015Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	497000
CY2015	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	5400000
CY2015	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	5074000
CY2015	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	10474000
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	6663000
CY2017Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	1032000
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	6489000
CY2016Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	1681000
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	17886000
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	1559495000
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	20916000
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	1406719000
CY2017Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	5000000
CY2016Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	7000000
CY2017Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0
CY2016Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0
CY2017	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1515000
CY2017	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	75000
CY2017Q4	us-gaap	Allowance For Credit Losses Change In Method Of Calculating Impairment AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment	75000
CY2016	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	51
CY2016	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	881000
CY2016	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	882000
CY2016	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	344000
CY2016Q4	us-gaap	Allowance For Credit Losses Change In Method Of Calculating Impairment AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment	43000
CY2015	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	129000
CY2015Q4	us-gaap	Allowance For Credit Losses Change In Method Of Calculating Impairment AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment	101000
CY2017	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0
CY2017	fmnb	Financing Receivable Period Of Modified Contractually Past Due Loans To Be Considered As Payment Default FinancingReceivablePeriodOfModifiedContractuallyPastDueLoansToBeConsideredAsPaymentDefault	P30D
CY2017Q4	fmnb	Commercial Loan And Commercial Real Estate Risk Maximum CommercialLoanAndCommercialRealEstateRiskMaximum	750000
CY2017Q4	us-gaap	Notes Receivable Net NotesReceivableNet	895561000
CY2016Q4	us-gaap	Notes Receivable Net NotesReceivableNet	779340000
CY2017Q4	us-gaap	Escrow Deposit EscrowDeposit	1400000
CY2016Q4	us-gaap	Escrow Deposit EscrowDeposit	961000
CY2016Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	854000
CY2015Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	453000
CY2014Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	347000
CY2017	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	701000
CY2016	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	611000
CY2015	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	166000
CY2017	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	313000
CY2016	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	210000
CY2015	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	60000
CY2017Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	1242000
CY2017Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0
CY2016Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0
CY2015Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0
CY2017	fmnb	Fair Value Assets And Liabilities Level1 And Level2 Transfers Amount FairValueAssetsAndLiabilitiesLevel1AndLevel2TransfersAmount	0
CY2016	fmnb	Fair Value Assets And Liabilities Level1 And Level2 Transfers Amount FairValueAssetsAndLiabilitiesLevel1AndLevel2TransfersAmount	0
CY2016Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	12000
CY2015Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	15000
CY2014Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	10000
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0
CY2016	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0
CY2017	fmnb	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Repayments Calls And Maturities FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRepaymentsCallsAndMaturities	4000
CY2016	fmnb	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Repayments Calls And Maturities FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRepaymentsCallsAndMaturities	3000
CY2015	fmnb	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Repayments Calls And Maturities FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRepaymentsCallsAndMaturities	1000
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	0
CY2016	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	0
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	6000
CY2017Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	8000
CY2017	fmnb	Number Of Properties Charged Down Reflecting Updated Appraisals NumberOfPropertiesChargedDownReflectingUpdatedAppraisals	1
CY2017Q4	fmnb	Other Real Estate Owned Measured At Fair Value Net OtherRealEstateOwnedMeasuredAtFairValueNet	0
CY2016	fmnb	Write Down Of Other Real Estate Owned WriteDownOfOtherRealEstateOwned	36000
CY2017	fmnb	Write Down Of Other Real Estate Owned WriteDownOfOtherRealEstateOwned	23000
CY2017Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding	10491000
CY2017Q4	us-gaap	Interest Receivable InterestReceivable	6669000
CY2017Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	633000
CY2016Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding	9583000
CY2016Q4	us-gaap	Interest Receivable InterestReceivable	5504000
CY2016Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	507000
CY2017	fmnb	Maximum Maturity Period Of Short Term Borrowings MaximumMaturityPeriodOfShortTermBorrowings	P90D
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	43688000
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	44671000
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	21402000
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	21446000
CY2017	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1600000
CY2016	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1700000
CY2015	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1500000
CY2017	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	449000
CY2016	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	362000
CY2015	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	332000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	425000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	419000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	384000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	380000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	270000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	973000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	2851000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	14414000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	7246000
CY2016Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	13742000
CY2016Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	5752000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1418000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1306000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1203000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1142000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	1025000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	1074000
CY2017Q4	fmnb	Minimum Time Deposits MinimumTimeDeposits	250000
CY2017Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	51900000
CY2016Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	43300000
CY2017Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	440347000
CY2016Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	378317000
CY2017Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	253181000
CY2016Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	317079000
CY2017Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	234940000
CY2016Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	235720000
CY2017	fmnb	Maturity Period Of Repurchase Agreement MaturityPeriodOfRepurchaseAgreement	P89D
CY2017Q4	fmnb	Maximum Subscription Amount Committed In Sbic Investment Funds MaximumSubscriptionAmountCommittedInSBICInvestmentFunds	8000000
CY2015Q4	us-gaap	Assets Sold Under Agreements To Repurchase Carrying Amounts AssetsSoldUnderAgreementsToRepurchaseCarryingAmounts	75482000
CY2017Q4	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.045
CY2016Q4	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.045
CY2017Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	4785000
CY2017	fmnb	Assets Sold Under Agreements To Repurchase Average During Year AssetsSoldUnderAgreementsToRepurchaseAverageDuringYear	82627000
CY2016	fmnb	Assets Sold Under Agreements To Repurchase Average During Year AssetsSoldUnderAgreementsToRepurchaseAverageDuringYear	84368000
CY2016Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	12876000
CY2017	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	5000000
CY2017Q4	fmnb	Tier One Risk Based Common Capital Required For Capital Adequacy To Risk Weighted Assets Capital Conservation Buffer Ratio TierOneRiskBasedCommonCapitalRequiredForCapitalAdequacyToRiskWeightedAssetsCapitalConservationBufferRatio	0.025
CY2017Q4	fmnb	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Capital Conservation Buffer Ratio TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssetsCapitalConservationBufferRatio	0.025
CY2017Q4	fmnb	Capital Required For Capital Adequacy To Risk Weighted Assets Capital Conservation Buffer Ratio CapitalRequiredForCapitalAdequacyToRiskWeightedAssetsCapitalConservationBufferRatio	0.025
CY2017Q4	fmnb	Capital Conservation Buffer Ratio CapitalConservationBufferRatio	0.0125
CY2016Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	276900000
CY2016Q4	fmnb	Capital Conservation Buffer Ratio CapitalConservationBufferRatio	0.00625
CY2017Q4	fmnb	Capital Conservation Buffer Additional Capital Amount Required CapitalConservationBufferAdditionalCapitalAmountRequired	31500000
CY2016Q4	fmnb	Capital Conservation Buffer Additional Capital Amount Required CapitalConservationBufferAdditionalCapitalAmountRequired	19300000
CY2017Q4	fmnb	Tier One Risk Based Common Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCommonCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.045
CY2017Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.060
CY2017Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2017Q4	fmnb	Tier One Common Capital TierOneCommonCapital	199201000
CY2016Q4	fmnb	Tier One Common Capital TierOneCommonCapital	180475000
CY2017Q4	fmnb	Tier One Common Capital Ratio TierOneCommonCapitalRatio	0.1186
CY2016Q4	fmnb	Tier One Common Capital Ratio TierOneCommonCapitalRatio	0.1169
CY2016Q4	us-gaap	Assets Sold Under Agreements To Repurchase Carrying Amounts AssetsSoldUnderAgreementsToRepurchaseCarryingAmounts	78110000
CY2017Q4	fmnb	Tier One Risk Based Common Capital Required For Capital Adequacy TierOneRiskBasedCommonCapitalRequiredForCapitalAdequacy	75573000
CY2016Q4	fmnb	Tier One Risk Based Common Capital Required For Capital Adequacy TierOneRiskBasedCommonCapitalRequiredForCapitalAdequacy	69474000
CY2016Q4	fmnb	Tier One Risk Based Common Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCommonCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.045
CY2015	fmnb	Assets Sold Under Agreements To Repurchase Average During Year AssetsSoldUnderAgreementsToRepurchaseAverageDuringYear	71779000
CY2017	fmnb	Assets Sold Under Agreements To Repurchase Average Interest Rate During Year AssetsSoldUnderAgreementsToRepurchaseAverageInterestRateDuringYear	0.0013
CY2016	fmnb	Assets Sold Under Agreements To Repurchase Average Interest Rate During Year AssetsSoldUnderAgreementsToRepurchaseAverageInterestRateDuringYear	0.0007
CY2015	fmnb	Assets Sold Under Agreements To Repurchase Average Interest Rate During Year AssetsSoldUnderAgreementsToRepurchaseAverageInterestRateDuringYear	0.0007
CY2017	fmnb	Assets Sold Under Agreements To Repurchase Maximum Month End During Year AssetsSoldUnderAgreementsToRepurchaseMaximumMonthEndDuringYear	94208000
CY2016	fmnb	Assets Sold Under Agreements To Repurchase Maximum Month End During Year AssetsSoldUnderAgreementsToRepurchaseMaximumMonthEndDuringYear	98687000
CY2015	fmnb	Assets Sold Under Agreements To Repurchase Maximum Month End During Year AssetsSoldUnderAgreementsToRepurchaseMaximumMonthEndDuringYear	89574000
CY2017	fmnb	Assets Sold Under Agreements To Repurchase Weighted Average Year End Interest Rate AssetsSoldUnderAgreementsToRepurchaseWeightedAverageYearEndInterestRate	0.0014
CY2016	fmnb	Assets Sold Under Agreements To Repurchase Weighted Average Year End Interest Rate AssetsSoldUnderAgreementsToRepurchaseWeightedAverageYearEndInterestRate	0.0008
CY2015	fmnb	Assets Sold Under Agreements To Repurchase Weighted Average Year End Interest Rate AssetsSoldUnderAgreementsToRepurchaseWeightedAverageYearEndInterestRate	0.0006
CY2017Q4	us-gaap	Assets Sold Under Agreements To Repurchase Carrying Amounts AssetsSoldUnderAgreementsToRepurchaseCarryingAmounts	74215000
CY2017Q4	fmnb	Additional Federal Home Loan Bank Advances To Be Borrow Under Collateral Pledge AdditionalFederalHomeLoanBankAdvancesToBeBorrowUnderCollateralPledge	60400000
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	1075000
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From One To Two Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate	931000
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Two To Three Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate	860000
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Three To Four Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate	792000
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Four To Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromFourToFiveYearsOfBalanceSheetDate	729000
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due After Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate	398000
CY2017Q4	us-gaap	Long Term Investments LongTermInvestments	2200000
CY2016Q4	us-gaap	Long Term Investments LongTermInvestments	2200000
CY2015Q4	us-gaap	Long Term Investments LongTermInvestments	2100000
CY2017Q4	us-gaap	Long Term Debt Percentage Bearing Variable Interest Rate LongTermDebtPercentageBearingVariableInterestRate	0.0302
CY2017	us-gaap	Debt Instrument Frequency Of Periodic Payment DebtInstrumentFrequencyOfPeriodicPayment	The debt has a floating rate that is determined quarterly based on the three-month LIBOR
CY2017	us-gaap	Debt Instrument Maturity Date DebtInstrumentMaturityDate	2036-12-15
CY2017	fmnb	Maximum Commitment Period To Make Loans MaximumCommitmentPeriodToMakeLoans	P30D
CY2017	fmnb	Standby Letters Of Credit Contractual Amount StandbyLettersOfCreditContractualAmount	4900000
CY2016	fmnb	Standby Letters Of Credit Contractual Amount StandbyLettersOfCreditContractualAmount	4300000
CY2017Q4	us-gaap	Capital Capital	213725000
CY2016Q4	us-gaap	Capital Capital	193487000
CY2017Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1273
CY2016Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2017Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Current And Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesCurrentAndNoncurrent	0
CY2016Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1253
CY2017Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	134352000
CY2016Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	123509000
CY2016Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.080
CY2017Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	201410000
CY2016Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	182635000
CY2017Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1199
CY2016Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1183
CY2017Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	100764000
CY2016Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	92632000
CY2016Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.060
CY2017Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	201410000
CY2016Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	182635000
CY2017Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0950
CY2016Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0941
CY2017Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	84800000
CY2016Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	77596000
CY2016Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Current And Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesCurrentAndNoncurrent	70000
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	9451000
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	8642000
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3046000
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	618000
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1157000
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-547000
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CY2016	fmnb	Income Tax Reconciliation Effect Of Nontaxable Insurance Premiums IncomeTaxReconciliationEffectOfNontaxableInsurancePremiums	143000
CY2015	fmnb	Income Tax Reconciliation Effect Of Nontaxable Insurance Premiums IncomeTaxReconciliationEffectOfNontaxableInsurancePremiums	0
CY2017	fmnb	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	1793000
CY2016	fmnb	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	0
CY2015	fmnb	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	0
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CY2016	fmnb	Income Tax Rate Reconciliation Nondeductible Acquisition Costs IncomeTaxRateReconciliationNondeductibleAcquisitionCosts	40000
CY2015	fmnb	Income Tax Rate Reconciliation Nondeductible Acquisition Costs IncomeTaxRateReconciliationNondeductibleAcquisitionCosts	401000
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-204000
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	107000
CY2015	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	285000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	2525000
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CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	509000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	64000
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	205000
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	73000
CY2016Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	106000
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CY2017Q4	fmnb	Deferred Tax Assets Tax Deferred Expense Deferred Loan Fees DeferredTaxAssetsTaxDeferredExpenseDeferredLoanFees	517000
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CY2017Q4	fmnb	Deferred Tax Assets Other Than Temporary Impairment DeferredTaxAssetsOtherThanTemporaryImpairment	25000
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CY2017Q4	fmnb	Deferred Tax Liabilities Depreciation And Amortization DeferredTaxLiabilitiesDepreciationAndAmortization	448000
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CY2017Q4	fmnb	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	656000
CY2016Q4	fmnb	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	1093000
CY2017Q4	fmnb	Deferred Tax Liability Purchase Accounting Adjustment DeferredTaxLiabilityPurchaseAccountingAdjustment	744000
CY2016Q4	fmnb	Deferred Tax Liability Purchase Accounting Adjustment DeferredTaxLiabilityPurchaseAccountingAdjustment	1559000
CY2017Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	261000
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CY2017Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	277000
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CY2017Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	8000
CY2016Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	15000
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	2553000
CY2016Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	3977000
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CY2016Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	5164000
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0
CY2017	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	0
CY2016	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	0
CY2017Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	0
CY2016Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	0
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
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CY2017	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	1767000
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	3319000
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	2000
CY2016	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-4499000
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-1494000
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CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	47000
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CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-491000
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-912000
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	61000
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	27567909
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	27180230
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	22678338
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.82
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.76
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.36
CY2017	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	51167
CY2016	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	29108
CY2015	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	5232
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	27619076
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CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	22683570
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.82
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.76
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.36
CY2017Q4	fmnb	Weighted Average Pay Rate On Interest Rate Swaps WeightedAveragePayRateOnInterestRateSwaps	0.0446
CY2016Q4	fmnb	Weighted Average Pay Rate On Interest Rate Swaps WeightedAveragePayRateOnInterestRateSwaps	0.0434
CY2015Q4	fmnb	Weighted Average Pay Rate On Interest Rate Swaps WeightedAveragePayRateOnInterestRateSwaps	0.0425
CY2017Q4	fmnb	Weighted Average Interest Rate Received Interest Rate Swaps WeightedAverageInterestRateReceivedInterestRateSwaps	0.0381
CY2016Q4	fmnb	Weighted Average Interest Rate Received Interest Rate Swaps WeightedAverageInterestRateReceivedInterestRateSwaps	0.0304
CY2015Q4	fmnb	Weighted Average Interest Rate Received Interest Rate Swaps WeightedAverageInterestRateReceivedInterestRateSwaps	0.0270
CY2017	us-gaap	Derivative Average Remaining Maturity1 DerivativeAverageRemainingMaturity1	P3Y2M12D
CY2016	us-gaap	Derivative Average Remaining Maturity1 DerivativeAverageRemainingMaturity1	P4Y9M18D
CY2015	us-gaap	Derivative Average Remaining Maturity1 DerivativeAverageRemainingMaturity1	P4Y1M6D
CY2017Q4	us-gaap	Interest Rate Derivatives At Fair Value Net InterestRateDerivativesAtFairValueNet	-653000
CY2016Q4	us-gaap	Interest Rate Derivatives At Fair Value Net InterestRateDerivativesAtFairValueNet	-685000
CY2015Q4	us-gaap	Interest Rate Derivatives At Fair Value Net InterestRateDerivativesAtFairValueNet	-789000
CY2017Q4	us-gaap	Derivative Assets DerivativeAssets	653000
CY2016Q4	us-gaap	Derivative Assets DerivativeAssets	685000
CY2015Q4	us-gaap	Derivative Assets DerivativeAssets	789000
CY2017Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	45369000
CY2016Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	45154000
CY2017	fmnb	Noninterest Expense Excluding Amortization And Depreciation NoninterestExpenseExcludingAmortizationAndDepreciation	58477000
CY2016	us-gaap	Depreciation And Amortization DepreciationAndAmortization	3131000
CY2015	fmnb	Noninterest Expense Excluding Amortization And Depreciation NoninterestExpenseExcludingAmortizationAndDepreciation	51521000
CY2015	us-gaap	Depreciation And Amortization DepreciationAndAmortization	2458000
CY2017Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	18850000
CY2017Q1	us-gaap	Interest Expense InterestExpense	1319000
CY2017Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	17531000
CY2017Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1050000
CY2017Q1	us-gaap	Noninterest Income NoninterestIncome	5887000
CY2017Q1	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	62000
CY2017Q1	us-gaap	Noninterest Expense NoninterestExpense	14551000
CY2017Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7755000
CY2017Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1972000
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	5783000
CY2017Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.21
CY2016Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	17747000
CY2016Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	17950000
CY2016Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	18332000
CY2016Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	18469000
CY2016Q1	us-gaap	Interest Expense InterestExpense	1000000
CY2016Q2	us-gaap	Interest Expense InterestExpense	1061000
CY2016Q3	us-gaap	Interest Expense InterestExpense	1139000
CY2016Q4	us-gaap	Interest Expense InterestExpense	1178000
CY2016Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	16747000
CY2016Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	16889000
CY2016Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	17193000
CY2016Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	17291000
CY2016Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	780000
CY2016Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	990000
CY2016Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1110000
CY2016Q4	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	990000
CY2016Q1	us-gaap	Noninterest Income NoninterestIncome	4946000
CY2016Q2	us-gaap	Noninterest Income NoninterestIncome	5737000
CY2016Q3	us-gaap	Noninterest Income NoninterestIncome	6485000
CY2016Q4	us-gaap	Noninterest Income NoninterestIncome	6076000
CY2016Q1	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	289000
CY2016Q2	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	224000
CY2016Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	31000
CY2016Q4	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	19000
CY2016Q1	us-gaap	Noninterest Expense NoninterestExpense	14155000
CY2016Q2	us-gaap	Noninterest Expense NoninterestExpense	14559000
CY2016Q3	us-gaap	Noninterest Expense NoninterestExpense	15194000
CY2016Q4	us-gaap	Noninterest Expense NoninterestExpense	14981000
CY2016Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6469000
CY2016Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6853000
CY2016Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7343000
CY2016Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7377000
CY2016Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1671000
CY2016Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1833000
CY2016Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1967000
CY2016Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2014000
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	4798000
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	5020000
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	5376000
CY2016Q4	us-gaap	Net Income Loss NetIncomeLoss	5363000
CY2016Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.18
CY2016Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.19
CY2016Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.20
CY2016Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.20
CY2017Q4	fmnb	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	1800000

Files In Submission

Name	View Source	Status
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$FMNB
FARMERS NATIONAL BANC CORP /OH/ Stock $fmnb

2016 Q4 Form 10-K Financial Statement

#000156459018004502 Filed on March 06, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

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

2016 Q4 Form 10-K Financial Statement

#000156459018004502 Filed on March 06, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

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