$FXNC
FIRST NATIONAL CORP /VA/ Stock $fxnc

$fxnc Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000143774924010057 Filed on March 29, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$2.540M		$10.24M
YoY Change	5.05%		1.68%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$408.0K	$406.0K	$1.616M
YoY Change	1.24%	6.56%	7.73%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$5.484M		$14.31M
YoY Change	133.16%		274.5%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$4.010M	-$1.172M	$11.81M
YoY Change	-15.65%	-119.83%	-43.11%
Income Tax	$801.0K	-$321.0K	$2.181M
% Of Pretax Income	19.98%		18.48%
Net Earnings	$3.209M	-$851.0K	$9.624M
YoY Change	-16.63%	-117.81%	-42.7%
Net Earnings / Revenue	126.34%		94.0%
Basic Earnings Per Share	$0.51		$1.54
Diluted Earnings Per Share	$0.51	-$0.14	$1.53
COMMON SHARES
Basic Shares Outstanding	6.277M	6.261M	6.265M
Diluted Shares Outstanding	6.283M		6.279M

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$138.7M	$87.16M
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	$21.99M	$22.14M	$22.14M
YoY Change	1.65%	1.22%	-1.2%
Goodwill	$3.030M	$3.030M
YoY Change	0.0%	0.0%
Intangibles	$113.0K	$117.0K
YoY Change	-13.74%	-13.97%
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	$1.447B	$1.419B	$1.419B
YoY Change	5.46%	3.64%	3.64%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$5.965M	$5.022M	$5.022M
YoY Change	26.35%	-7.29%	2.91%
Accrued Expenses			$330.0K
YoY Change			-38.55%
Deferred Revenue
YoY Change
Short-Term Debt	$50.00M	$50.00M	$50.00M
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$5.965M	$5.022M	$5.022M
YoY Change	26.35%	-7.29%	-7.29%
LONG-TERM LIABILITIES
Long-Term Debt	$64.28M	$64.28M	$64.28M
YoY Change	350.28%	350.3%	350.3%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$64.28M	$64.28M	$64.28M
YoY Change	350.28%	350.3%	350.3%
TOTAL LIABILITIES
Total Short-Term Liabilities	$5.965M	$5.022M	$5.022M
Total Long-Term Liabilities	$64.28M	$64.28M	$64.28M
Total Liabilities	$1.329B	$1.303B	$1.303B
YoY Change	5.46%	3.33%	3.33%
SHAREHOLDERS EQUITY
Retained Earnings	$96.47M	$94.20M
YoY Change	5.73%	4.34%
Common Stock	$7.847M	$7.829M
YoY Change	-0.05%	-0.03%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$117.8M	$116.3M	$116.3M
YoY Change
Total Liabilities & Shareholders Equity	$1.447B	$1.419B	$1.419B
YoY Change	5.46%	3.64%	3.64%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$3.209M	-$851.0K	$9.624M
YoY Change	-16.63%	-117.81%	-42.7%
Depreciation, Depletion And Amortization	$408.0K	$406.0K	$1.616M
YoY Change	1.24%	6.56%	7.73%
Cash From Operating Activities	$4.703M	$5.080M	$16.39M
YoY Change	3.29%	-48.87%	-38.78%
INVESTING ACTIVITIES
Capital Expenditures	$305.0K	$1.186M	$1.866M
YoY Change	91.82%	102.74%	58.0%
Acquisitions
YoY Change
Other Investing Activities	$22.72M	-$14.51M	-$32.48M
YoY Change	210.6%	-298.78%	-72.7%
Cash From Investing Activities	$22.41M	-$15.70M	-$34.35M
YoY Change	213.24%	-333.77%	-71.41%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$24.43M	47.67M	38.20M
YoY Change	-3076.0%	-286.8%	-342.95%
NET CHANGE
Cash From Operating Activities	$4.703M	5.080M	16.39M
Cash From Investing Activities	$22.41M	-15.70M	-34.35M
Cash From Financing Activities	$24.43M	47.67M	38.20M
Net Change In Cash	$51.55M	37.06M	20.25M
YoY Change	373.48%	-517.73%	-118.56%
FREE CASH FLOW
Cash From Operating Activities	$4.703M	$5.080M	$16.39M
Capital Expenditures	$305.0K	$1.186M	$1.866M
Free Cash Flow	$4.398M	$3.894M	$14.52M
YoY Change	0.09%	-58.35%	-43.25%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
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CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	11974000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	7446000	usd
CY2023Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	0	usd
CY2022Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	13000	usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
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CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
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CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	8000000
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CY2023	fxnc	Defined Contribution Plan Minimum Age For Eligibility DefinedContributionPlanMinimumAgeForEligibility	P19Y
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CY2023Q4	fxnc	Number Of Leases NumberOfLeases	8	pure
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CY2023	dei	Document Type DocumentType	10-K
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	1-38874
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	VA
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	54-1232965
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	112 West King Street
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Strasburg
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	VA
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	22657
CY2023	dei	City Area Code CityAreaCode	540
CY2023	dei	Local Phone Number LocalPhoneNumber	465-9121
CY2023	dei	Security12b Title Security12bTitle	Common stock, par value $1.25 per share
CY2023	dei	Trading Symbol TradingSymbol	FXNC
CY2023	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	true
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CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	false
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
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CY2023	us-gaap	Interest Expense InterestExpense	14306000	usd
CY2022	us-gaap	Interest Expense InterestExpense	3820000	usd
CY2023	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	43413000	usd
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	45575000	usd
CY2023	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	6150000	usd
CY2022	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1850000	usd
CY2023	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	37263000	usd
CY2022	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	43725000	usd
CY2023	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	627000	usd
CY2022	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	597000	usd
CY2023	us-gaap	Debt Securities Available For Sale Gain Loss DebtSecuritiesAvailableForSaleGainLoss	0	usd
CY2022	us-gaap	Debt Securities Available For Sale Gain Loss DebtSecuritiesAvailableForSaleGainLoss	-2004000	usd
CY2023	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	47000	usd
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-29000	usd
CY2023	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	186000	usd
CY2022	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	2885000	usd
CY2023	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	686000	usd
CY2022	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1103000	usd
CY2023	us-gaap	Noninterest Income NoninterestIncome	11784000	usd
CY2022	us-gaap	Noninterest Income NoninterestIncome	12621000	usd
CY2023	us-gaap	Labor And Related Expense LaborAndRelatedExpense	21039000	usd
CY2022	us-gaap	Labor And Related Expense LaborAndRelatedExpense	20709000	usd
CY2023	us-gaap	Occupancy Net OccupancyNet	2154000	usd
CY2022	us-gaap	Occupancy Net OccupancyNet	2218000	usd
CY2023	us-gaap	Equipment Expense EquipmentExpense	2377000	usd
CY2022	us-gaap	Equipment Expense EquipmentExpense	2300000	usd
CY2023	us-gaap	Marketing Expense MarketingExpense	910000	usd
CY2022	us-gaap	Marketing Expense MarketingExpense	813000	usd
CY2023	us-gaap	Supplies Expense SuppliesExpense	576000	usd
CY2022	us-gaap	Supplies Expense SuppliesExpense	528000	usd
CY2023	us-gaap	Professional Fees ProfessionalFees	1647000	usd
CY2022	us-gaap	Professional Fees ProfessionalFees	1414000	usd
CY2023	fxnc	Atm And Check Card Expense ATMAndCheckCardExpense	1578000	usd
CY2022	fxnc	Atm And Check Card Expense ATMAndCheckCardExpense	1370000	usd
CY2023	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	633000	usd
CY2022	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	463000	usd
CY2023	fxnc	Bank Franchise Tax BankFranchiseTax	1040000	usd
CY2022	fxnc	Bank Franchise Tax BankFranchiseTax	930000	usd
CY2023	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1047000	usd
CY2022	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	989000	usd
CY2023	us-gaap	Amortization Of Deferred Charges AmortizationOfDeferredCharges	18000	usd
CY2022	us-gaap	Amortization Of Deferred Charges AmortizationOfDeferredCharges	19000	usd
CY2023	us-gaap	Profit Loss From Real Estate Operations ProfitLossFromRealEstateOperations	199000	usd
CY2022	us-gaap	Profit Loss From Real Estate Operations ProfitLossFromRealEstateOperations	106000	usd
CY2023	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	4422000	usd
CY2022	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	3950000	usd
CY2023	us-gaap	Noninterest Expense NoninterestExpense	37242000	usd
CY2022	us-gaap	Noninterest Expense NoninterestExpense	35597000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	11805000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	20749000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2181000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3952000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	9624000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	16797000	usd
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.54
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.69
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.53
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.68
CY2023	us-gaap	Net Income Loss NetIncomeLoss	9624000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	16797000	usd
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	2621000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-20033000	usd
CY2023	fxnc	Oci Debt Securities Heldtomaturity Transfer From Availableforsale Gain Loss Before Adjustment After Tax OciDebtSecuritiesHeldtomaturityTransferFromAvailableforsaleGainLossBeforeAdjustmentAfterTax	0	usd
CY2022	fxnc	Oci Debt Securities Heldtomaturity Transfer From Availableforsale Gain Loss Before Adjustment After Tax OciDebtSecuritiesHeldtomaturityTransferFromAvailableforsaleGainLossBeforeAdjustmentAfterTax	-6160000	usd
CY2023	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss After Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossAfterTax	-1295000	usd
CY2022	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss After Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossAfterTax	-468000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-1583000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-151000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	1373000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3765000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-22769000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	13389000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-5972000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	9624000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	16797000	usd
CY2023	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1597000	usd
CY2022	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1495000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	19000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	18000	usd
CY2023	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	2000	usd
CY2022	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	2000	usd
CY2023	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	5917000	usd
CY2022	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1850000	usd
CY2023	fxnc	Provision For Credit Losses On Unfunded Commitments ProvisionForCreditLossesOnUnfundedCommitments	260000	usd
CY2022	fxnc	Provision For Credit Losses On Unfunded Commitments ProvisionForCreditLossesOnUnfundedCommitments	0	usd
CY2023	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	-0	usd
CY2022	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	-13000	usd
CY2023	us-gaap	Debt Securities Available For Sale Gain Loss DebtSecuritiesAvailableForSaleGainLoss	-0	usd
CY2022	us-gaap	Debt Securities Available For Sale Gain Loss DebtSecuritiesAvailableForSaleGainLoss	-2004000	usd
CY2023	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	233000	usd
CY2022	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	176000	usd
CY2023	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	627000	usd
CY2022	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	597000	usd
CY2023	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	932000	usd
CY2022	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1152000	usd
CY2023	fxnc	Accretion Amortization Of Discounts And Premiums On Time Deposits AccretionAmortizationOfDiscountsAndPremiumsOnTimeDeposits	-86000	usd
CY2022	fxnc	Accretion Amortization Of Discounts And Premiums On Time Deposits AccretionAmortizationOfDiscountsAndPremiumsOnTimeDeposits	-187000	usd
CY2023	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	594000	usd
CY2022	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	1130000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	753000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	785000	usd
CY2023	fxnc	Excess Tax Benefits On Stockbased Compensation ExcessTaxBenefitsOnStockbasedCompensation	-4000	usd
CY2022	fxnc	Excess Tax Benefits On Stockbased Compensation ExcessTaxBenefitsOnStockbasedCompensation	-3000	usd
CY2023	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	47000	usd
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-29000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-399000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-241000	usd
CY2023	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	112000	usd
CY2022	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	640000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-188000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-4918000	usd
CY2023	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-808000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	677000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	16390000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	26772000	usd
CY2023	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	12462000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	39100000	usd
CY2023	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	8485000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	9239000	usd
CY2023	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	-0	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	21147000	usd
CY2023	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	2091000	usd
CY2022	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	54038000	usd
CY2023	fxnc	Proceeds Payments From Restricted Investments ProceedsPaymentsFromRestrictedInvestments	-170000	usd
CY2022	fxnc	Proceeds Payments From Restricted Investments ProceedsPaymentsFromRestrictedInvestments	-95000	usd
CY2023	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	1866000	usd
CY2022	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	1181000	usd
CY2023	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	50000	usd
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	usd
CY2023	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	417000	usd
CY2022	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	2011000	usd
CY2023	us-gaap	Payments For Proceeds From Life Insurance Policies PaymentsForProceedsFromLifeInsurancePolicies	-256000	usd
CY2022	us-gaap	Payments For Proceeds From Life Insurance Policies PaymentsForProceedsFromLifeInsurancePolicies	-360000	usd
CY2023	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	51888000	usd
CY2022	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	94389000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-34345000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-120140000	usd
CY2023	fxnc	Increase Decrease In Demand Deposits And Savings Accounts IncreaseDecreaseInDemandDepositsAndSavingsAccounts	-63106000	usd
CY2022	fxnc	Increase Decrease In Demand Deposits And Savings Accounts IncreaseDecreaseInDemandDepositsAndSavingsAccounts	1297000	usd
CY2023	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	55586000	usd
CY2022	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-8530000	usd
CY2023	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	50000000	usd
CY2022	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	0	usd
CY2023	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	-0	usd
CY2022	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	5000000	usd
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	3596000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	3308000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	38202000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-15724000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	20247000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-109092000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	66914000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	176006000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	87161000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	66914000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	9355000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	3996000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3426000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3365000	usd
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	3318000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-23356000	usd
CY2023	fxnc	Other Comprehensive Reclassification Adjustment For Heldtomaturity Transfer From Availableforsale Gain Loss Before Adjustment And Tax OtherComprehensiveReclassificationAdjustmentForHeldtomaturityTransferFromAvailableforsaleGainLossBeforeAdjustmentAndTax	0	usd
CY2022	fxnc	Other Comprehensive Reclassification Adjustment For Heldtomaturity Transfer From Availableforsale Gain Loss Before Adjustment And Tax OtherComprehensiveReclassificationAdjustmentForHeldtomaturityTransferFromAvailableforsaleGainLossBeforeAdjustmentAndTax	-7205000	usd
CY2023	fxnc	Other Comprehensive Income Debt Securities Availableforsale Transfer From Heldtomaturity Fair Value Before Adjustment And Tax OtherComprehensiveIncomeDebtSecuritiesAvailableforsaleTransferFromHeldtomaturityFairValueBeforeAdjustmentAndTax	0	usd
CY2022	fxnc	Other Comprehensive Income Debt Securities Availableforsale Transfer From Heldtomaturity Fair Value Before Adjustment And Tax OtherComprehensiveIncomeDebtSecuritiesAvailableforsaleTransferFromHeldtomaturityFairValueBeforeAdjustmentAndTax	74416000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	-191000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	1738000	usd
CY2023	fxnc	Transfers From Premises And Equipment To Other Real Estate Owned Net TransfersFromPremisesAndEquipmentToOtherRealEstateOwnedNet	0	usd
CY2022	fxnc	Transfers From Premises And Equipment To Other Real Estate Owned Net TransfersFromPremisesAndEquipmentToOtherRealEstateOwnedNet	-184000	usd
CY2023	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	20000	usd
CY2022	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	491000	usd
CY2023	us-gaap	Stock Issued1 StockIssued1	161000	usd
CY2022	us-gaap	Stock Issued1 StockIssued1	194000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	117039000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	16797000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-22769000	usd
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3503000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	785000	usd
CY2022	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	194000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	0	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	108360000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	108360000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	9624000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3765000	usd
CY2023	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3757000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	753000	usd
CY2023	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	161000	usd
CY2023	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	0	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	116271000	usd
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"><b>Use of Estimates</b></p> <p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </p> <p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;">In preparing consolidated financial statements in conformity with accounting principles generally accepted in the United States, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated balance sheet and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that require the most subjective or complex judgments relate to the allowance for credit losses, loans acquired in a business combination, and goodwill.</p> <p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </p> <p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"></p>
CY2023	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"><b>Significant Group Concentrations of Credit Risk</b></p> <p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </p> <p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;">Most of the Company’s activities are with customers located within the Shenandoah Valley, central regions of Virginia, and the Richmond and Roanoke market areas. The types of lending that the Company engages in are included in Note <em style="font: inherit;">3.</em> The Company has a concentration of credit risk in commercial real estate, but does <em style="font: inherit;">not</em> have a significant concentration to any <em style="font: inherit;">one</em> customer or industry.</p> <p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </p> <p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"></p>
CY2023	us-gaap	Advertising Expense AdvertisingExpense	573000	usd
CY2022	us-gaap	Advertising Expense AdvertisingExpense	455000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	5458000	usd
CY2023Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	7446000	usd
CY2023Q1	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	0	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	173458000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	61000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	20662000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	152857000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	-0	usd
CY2023Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	148351000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	107000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	10844000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	137614000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	107000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Amortized Cost Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAmortizedCostBeforeAllowanceForCreditLoss	321809000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Cumulative Unrecognized Gain DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedGain	168000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Cumulative Unrecognized Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedLoss	31506000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Fair Value DebtSecuritiesAvailableForSaleAndHeldToMaturityFairValue	290471000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAllowanceForCreditLoss	107000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	186826000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	99000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	24018000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	162907000	usd
CY2022Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	153158000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	11361000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	141797000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Amortized Cost Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAmortizedCostBeforeAllowanceForCreditLoss	339984000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Cumulative Unrecognized Gain DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedGain	99000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Cumulative Unrecognized Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedLoss	35379000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Fair Value DebtSecuritiesAvailableForSaleAndHeldToMaturityFairValue	304704000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	5750000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	244000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	137254000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	20418000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	143004000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	20662000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	61012000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	90892000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	18560000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	151904000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	24018000	usd
CY2022Q4	fxnc	Debt Securities Heldtomaturity Continuous Unrealized Loss Position Less Than12 Months Fair Value DebtSecuritiesHeldtomaturityContinuousUnrealizedLossPositionLessThan12MonthsFairValue	88617000	usd
CY2022Q4	fxnc	Debt Securities Heldtomaturity Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesHeldtomaturityContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	8466000	usd
CY2022Q4	fxnc	Debt Securities Heldtomaturity Continuous Unrealized Loss Position12 Months Or Longer Fair Value DebtSecuritiesHeldtomaturityContinuousUnrealizedLossPosition12MonthsOrLongerFairValue	53181000	usd
CY2022Q4	fxnc	Debt Securities Heldtomaturity Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesHeldtomaturityContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	2895000	usd
CY2022Q4	fxnc	Debt Securities Heldtomaturity Unrealized Loss Position Fair Value DebtSecuritiesHeldtomaturityUnrealizedLossPositionFairValue	141798000	usd
CY2022Q4	fxnc	Debt Securities Heldtomaturity Unrealized Loss Position Accumulated Loss DebtSecuritiesHeldtomaturityUnrealizedLossPositionAccumulatedLoss	11361000	usd
CY2022Q4	fxnc	Debt Securities Availableforsale And Heldtomaturity Continuous Unrealized Loss Position Less Than12 Months Fair Value DebtSecuritiesAvailableforsaleAndHeldtomaturityContinuousUnrealizedLossPositionLessThan12MonthsFairValue	149629000	usd
CY2022Q4	fxnc	Debt Securities Availableforsale And Heldtomaturity Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableforsaleAndHeldtomaturityContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	13924000	usd
CY2022Q4	fxnc	Debt Securities Availableforsale And Heldtomaturity Securities Continued Unrealized Loss Position12 Months Or Longer Fair Value DebtSecuritiesAvailableforsaleAndHeldtomaturitySecuritiesContinuedUnrealizedLossPosition12MonthsOrLongerFairValue	144073000	usd
CY2022Q4	fxnc	Debt Securities Availableforsale And Heldtomaturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableforsaleAndHeldtomaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	21455000	usd
CY2022Q4	fxnc	Debt Securities Availableforsale And Heldtomaturity Securities Continuous Unrealized Loss Position Fair Value DebtSecuritiesAvailableforsaleAndHeldtomaturitySecuritiesContinuousUnrealizedLossPositionFairValue	293702000	usd
CY2022Q4	fxnc	Debt Securities Availableforsale And Heldtomaturity Unrealized Loss Position Accumulated Loss Total DebtSecuritiesAvailableforsaleAndHeldtomaturityUnrealizedLossPositionAccumulatedLossTotal	35379000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	107000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	0	usd
CY2023	fxnc	Weighted Average Repricing Term WeightedAverageRepricingTerm	P5Y10M24D
CY2022	fxnc	Weighted Average Repricing Term WeightedAverageRepricingTerm	P6Y6M
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	760000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	758000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	30690000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	30470000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	23155000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	21736000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	22634000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	21529000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	36990000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	33779000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	19830000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	18092000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	112553000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	96584000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	75197000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	67523000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	173458000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	152857000	usd
CY2023Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	148351000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	137614000	usd
CY2023	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	12500000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	39100000	usd
CY2023	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-2000000	usd
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	7600000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	9300000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	184400000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	134500000	usd
CY2022Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	82200000	usd
CY2022Q3	fxnc	Debt Securities Availableforsale Unrealized Loss DebtSecuritiesAvailableforsaleUnrealizedLoss	7800000	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	74400000	usd
CY2023	fxnc	Impairment Losses Related To Federal Home Loan Stock ImpairmentLossesRelatedToFederalHomeLoanStock	0	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	965000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	796000	usd
CY2023Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	981000	usd
CY2022Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	980000	usd
CY2023Q4	fxnc	Community Bankers Bank Stock CommunityBankersBankStock	132000	usd
CY2022Q4	fxnc	Community Bankers Bank Stock CommunityBankersBankStock	132000	usd
CY2023Q4	us-gaap	Restricted Investments RestrictedInvestments	2078000	usd
CY2022Q4	us-gaap	Restricted Investments RestrictedInvestments	1908000	usd
CY2023Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	148351000	usd
CY2022Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	153158000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	0	usd
CY2023	us-gaap	Debt Securities Held To Maturity Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityCreditLossExpenseReversal	10000	usd
CY2023	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Writeoff DebtSecuritiesHeldToMaturityAllowanceForCreditLossWriteoff	-0	usd
CY2023	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Recovery DebtSecuritiesHeldToMaturityAllowanceForCreditLossRecovery	-37000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	107000	usd
CY2023Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	969430000	usd
CY2022Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	920523000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	11974000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	7446000	usd
CY2023Q4	us-gaap	Notes Receivable Net NotesReceivableNet	957456000	usd
CY2022Q4	us-gaap	Notes Receivable Net NotesReceivableNet	913077000	usd
CY2023Q4	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	1100000	usd
CY2022Q4	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	838000	usd
CY2023Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	969430000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	6763000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	524000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	usd
CY2022Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	920523000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	2673000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	usd
CY2022Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	920523000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	7446000	usd
CY2023	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	3993000	usd
CY2023	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	418000	usd
CY2023	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	5917000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	11974000	usd
CY2023Q4	fxnc	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment	2705000	usd
CY2023Q4	fxnc	Financing Receivables Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivablesAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	9269000	usd
CY2023Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	969430000	usd
CY2023Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	6763000	usd
CY2023Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	962667000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	5710000	usd
CY2022	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	529000	usd
CY2022	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	415000	usd
CY2022	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1850000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	7446000	usd
CY2022Q4	fxnc	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment	888000	usd
CY2022Q4	fxnc	Financing Receivables Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivablesAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	6558000	usd
CY2022Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	920523000	usd
CY2022Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	2673000	usd
CY2022Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	917850000	usd
CY2023Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	533000	usd
CY2023Q4	fxnc	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	6230000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	6763000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	2673000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	4202000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	1588000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	1085000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	2673000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	888000	usd
CY2022	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	1282000	usd
CY2022	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	126000	usd
CY2022Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	101000	usd
CY2022	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	0	pure
CY2022	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	usd
CY2023	fxnc	Financing Receivable Nonaccrual Loans Excluded From Impaired Loan Disclosure FinancingReceivableNonaccrualLoansExcludedFromImpairedLoanDisclosure	0	usd
CY2023	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	223000	usd
CY2022	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	177000	usd
CY2023Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	0	usd
CY2023	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	260000	usd
CY2022Q4	us-gaap	Other Real Estate OtherRealEstate	184000	usd
CY2021Q4	us-gaap	Other Real Estate OtherRealEstate	1848000	usd
CY2023	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0	usd
CY2022	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0	usd
CY2023	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	0	usd
CY2022	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	184000	usd
CY2023	us-gaap	Other Real Estate Additions OtherRealEstateAdditions	0	usd
CY2022	us-gaap	Other Real Estate Additions OtherRealEstateAdditions	0	usd
CY2023	us-gaap	Other Real Estate Disposals OtherRealEstateDisposals	417000	usd
CY2022	us-gaap	Other Real Estate Disposals OtherRealEstateDisposals	2011000	usd
CY2023	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	233000	usd
CY2022	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	176000	usd
CY2023Q4	fxnc	Other Real Estate Gross OtherRealEstateGross	0	usd
CY2022Q4	fxnc	Other Real Estate Gross OtherRealEstateGross	197000	usd
CY2023Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	-0	usd
CY2022Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	13000	usd
CY2023Q4	us-gaap	Other Real Estate OtherRealEstate	0	usd
CY2022Q4	us-gaap	Other Real Estate OtherRealEstate	184000	usd
CY2023	fxnc	Other Real Estate Owned Expenses OtherRealEstateOwnedExpenses	10000	usd
CY2022	fxnc	Other Real Estate Owned Expenses OtherRealEstateOwnedExpenses	52000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	35756000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	34302000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	13614000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	12426000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	22142000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	21876000	usd
CY2023	us-gaap	Depreciation Depreciation	1600000	usd
CY2022	us-gaap	Depreciation Depreciation	1500000	usd
CY2023Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	28800000	usd
CY2022Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	18800000	usd
CY2023Q4	fxnc	Brokered Deposits BrokeredDeposits	3900000	usd
CY2022Q4	fxnc	Brokered Deposits BrokeredDeposits	556000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	134695000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	44530000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	7010000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	3763000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	2351000	usd
CY2023Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	0	usd
CY2023Q4	us-gaap	Time Deposits TimeDeposits	192349000	usd
CY2023Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	368200000	usd
CY2022Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	287300000	usd
CY2023	fxnc	Percentage Of Assets Maximum Borrowing Capacity From Fhlb PercentageOfAssetsMaximumBorrowingCapacityFromFHLB	0.16	pure
CY2023Q4	us-gaap	Other Borrowings OtherBorrowings	50000000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	2624000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	1564000	usd
CY2023Q4	fxnc	Deferred Tax Assets Acquisition Accounting Adjustments DeferredTaxAssetsAcquisitionAccountingAdjustments	420000	usd
CY2022Q4	fxnc	Deferred Tax Assets Acquisition Accounting Adjustments DeferredTaxAssetsAcquisitionAccountingAdjustments	570000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	214000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	188000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	232000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	270000	usd
CY2023Q4	fxnc	Deferred Tax Assets Share Based Compensation Nonvested Awards Compensation Cost Not Yet Recognized DeferredTaxAssetsShareBasedCompensationNonvestedAwardsCompensationCostNotYetRecognized	87000	usd
CY2022Q4	fxnc	Deferred Tax Assets Share Based Compensation Nonvested Awards Compensation Cost Not Yet Recognized DeferredTaxAssetsShareBasedCompensationNonvestedAwardsCompensationCostNotYetRecognized	81000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	44000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	88000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	39000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	39000	usd
CY2023Q4	fxnc	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	69000	usd
CY2022Q4	fxnc	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	113000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	5495000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	6536000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	1337000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	1434000	usd
CY2023Q4	fxnc	Deferred Tax Assets Loan Origination Cost Net DeferredTaxAssetsLoanOriginationCostNet	241000	usd
CY2022Q4	fxnc	Deferred Tax Assets Loan Origination Cost Net DeferredTaxAssetsLoanOriginationCostNet	176000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	10802000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	11059000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	638000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	701000	usd
CY2023Q4	fxnc	Deferred Tax Liabilities Right Of Use Asset DeferredTaxLiabilitiesRightOfUseAsset	69000	usd
CY2022Q4	fxnc	Deferred Tax Liabilities Right Of Use Asset DeferredTaxLiabilitiesRightOfUseAsset	112000	usd
CY2023Q4	fxnc	Deferred Tax Liabilities Other Real Estate Owned DeferredTaxLiabilitiesOtherRealEstateOwned	0	usd
CY2022Q4	fxnc	Deferred Tax Liabilities Other Real Estate Owned DeferredTaxLiabilitiesOtherRealEstateOwned	29000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	523000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	563000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1230000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1405000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	9572000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	9654000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2580000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	4193000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-399000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-241000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2181000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3952000	usd
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	2479000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	4357000	usd
CY2023	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	29000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	8000	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	156000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	252000	usd
CY2023	fxnc	Effective Income Tax Rate Reconciliation Bank Owned Life Insurance Income Amount EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsuranceIncomeAmount	171000	usd
CY2022	fxnc	Effective Income Tax Rate Reconciliation Bank Owned Life Insurance Income Amount EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsuranceIncomeAmount	161000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2181000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3952000	usd
CY2023Q4	fxnc	Aggregate Amount Of Unrestricted Funds Transferred From Bank AggregateAmountOfUnrestrictedFundsTransferredFromBank	17100000	usd
CY2023Q4	fxnc	Aggregate Amount Of Daily Average Deposit AggregateAmountOfDailyAverageDeposit	0	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	9624000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	16797000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	6265394
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	6252369
CY2023	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	13711
CY2022	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	6988
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6279105
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6259357
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.54
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.69
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.53
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.68
CY2023Q4	fxnc	Amount Of Locked Rate Commitments For Mortgage Loans AmountOfLockedRateCommitmentsForMortgageLoans	1200000	usd
CY2023Q4	fxnc	Access Deposit In Other Commercial Banks AccessDepositInOtherCommercialBanks	1800000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	341000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	11000	usd
CY2023Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	1100000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	1100000	usd
CY2023	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	133000	usd
CY2023	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	135000	usd
CY2023Q4	fxnc	Deposit Related Party DepositRelatedParty	40500000	usd
CY2022Q4	fxnc	Deposit Related Party DepositRelatedParty	27500000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P1Y8M12D
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P2Y6M
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0369	pure
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0351	pure
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	257000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	247000	usd
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	26000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	33000	usd
CY2023	us-gaap	Lease Cost LeaseCost	283000	usd
CY2022	us-gaap	Lease Cost LeaseCost	280000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	240000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	249000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	20000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	491000	usd
CY2023Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1405	pure
CY2023Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	81027000	usd
CY2023Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08	pure
CY2023Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	101284000	usd
CY2023Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.10	pure
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	223000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	99000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	19000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	0	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	0	usd
CY2023Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	81027000	usd
CY2023Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.08	pure
CY2023Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	129840000	usd
CY2023Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1282	pure
CY2023Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	60771000	usd
CY2023Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.06	pure
CY2023	fxnc	Quoted Prices Preceding Dividend Payment Date Period QuotedPricesPrecedingDividendPaymentDatePeriod	P10D
CY2023	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	9214
CY2022	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	10384
CY2023Q4	us-gaap	Capital Capital	142334000	usd
CY2023Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	129840000	usd
CY2023Q4	us-gaap	Common Equity Tier One Capital Ratio CommonEquityTierOneCapitalRatio	0.1282	pure
CY2023Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	45578000	usd
CY2023Q4	fxnc	Common Equity Tier One Capital Required For Adequacy To Risk Weighted Assets CommonEquityTierOneCapitalRequiredForAdequacyToRiskWeightedAssets	0.045	pure
CY2023Q4	us-gaap	Common Equity Tier One Capital Required To Be Well Capitalized CommonEquityTierOneCapitalRequiredToBeWellCapitalized	65835000	usd
CY2023Q4	fxnc	Common Equity Tier One Capital Required To Be Well Capitalized To Risk Weighted Assets CommonEquityTierOneCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.065	pure
CY2023Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	129840000	usd
CY2023Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0931	pure
CY2023Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	55797000	usd
CY2023Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.04	pure
CY2023Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized TierOneLeverageCapitalRequiredToBeWellCapitalized	69746000	usd
CY2023Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.05	pure
CY2022Q4	us-gaap	Capital Capital	139549000	usd
CY2022Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.146	pure
CY2022Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	76462000	usd
CY2022Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08	pure
CY2022Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	95578000	usd
CY2022Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.10	pure
CY2022Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	132103000	usd
CY2022Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1382	pure
CY2022Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	57347000	usd
CY2022Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.06	pure
CY2022Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	76462000	usd
CY2022Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.08	pure
CY2022Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	132103000	usd
CY2022Q4	us-gaap	Common Equity Tier One Capital Ratio CommonEquityTierOneCapitalRatio	0.1382	pure
CY2022Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	43010000	usd
CY2022Q4	fxnc	Common Equity Tier One Capital Required For Adequacy To Risk Weighted Assets CommonEquityTierOneCapitalRequiredForAdequacyToRiskWeightedAssets	0.045	pure
CY2022Q4	us-gaap	Common Equity Tier One Capital Required To Be Well Capitalized CommonEquityTierOneCapitalRequiredToBeWellCapitalized	62126000	usd
CY2022Q4	fxnc	Common Equity Tier One Capital Required To Be Well Capitalized To Risk Weighted Assets CommonEquityTierOneCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.065	pure
CY2022Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	132103000	usd
CY2022Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0936	pure
CY2022Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	55228000	usd
CY2022Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.04	pure
CY2022Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized TierOneLeverageCapitalRequiredToBeWellCapitalized	69035000	usd
CY2022Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.05	pure
CY2023Q4	us-gaap	Banking Regulation Capital Conservation Buffer Capital Conserved Minimum BankingRegulationCapitalConservationBufferCapitalConservedMinimum	0.025	pure
CY2023	fxnc	Capital Conservation Buffer Percentage Maintained At Bank CapitalConservationBufferPercentageMaintainedAtBank	0.066	pure
CY2022	fxnc	Capital Conservation Buffer Percentage Maintained At Bank CapitalConservationBufferPercentageMaintainedAtBank	0.0676	pure
CY2023	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	233000	usd
CY2022	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	176000	usd
CY2023	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	10238000	usd
CY2022	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	10069000	usd
CY2023	fxnc	Noninterest Income Excluding Revenue From Contact With Customer NoninterestIncomeExcludingRevenueFromContactWithCustomer	1546000	usd
CY2022	fxnc	Noninterest Income Excluding Revenue From Contact With Customer NoninterestIncomeExcludingRevenueFromContactWithCustomer	2552000	usd
CY2023	us-gaap	Noninterest Income NoninterestIncome	11784000	usd
CY2022	us-gaap	Noninterest Income NoninterestIncome	12621000	usd
CY2023	dei	Auditor Name AuditorName	Yount, Hyde & Barbour, P.C
CY2023	dei	Auditor Firm AuditorFirmId	613
CY2023	dei	Auditor Location AuditorLocation	Winchester, Virginia

Files In Submission

Name	View Source	Status
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0001437749-24-010057-index.html	Edgar Link	pending
0001437749-24-010057.txt	Edgar Link	pending
0001437749-24-010057-xbrl.zip	Edgar Link	pending
ex_609828.htm	Edgar Link	pending
ex_609829.htm	Edgar Link	pending
ex_609830.htm	Edgar Link	pending
ex_609831.htm	Edgar Link	pending
ex_609832.htm	Edgar Link	pending
ex_609833.htm	Edgar Link	pending
ex_643607.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
fxnc-20231231.xsd	Edgar Link	pending
fxnc20231231_10k.htm	Edgar Link	pending
logo.jpg	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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FIRST NATIONAL CORP /VA/ Stock $fxnc

2024 Q1 Form 10-K Financial Statement

#000143774924010057 Filed on March 29, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FXNC FIRST NATIONAL CORP /VA/ Stock $fxnc

2024 Q1 Form 10-K Financial Statement

#000143774924010057 Filed on March 29, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FXNC
FIRST NATIONAL CORP /VA/ Stock $fxnc