FNCB Bancorp, Inc.

$ Overview Financials Valuation SEC Filings Company Website

2023 Q3 Form 10-Q Financial Statement

#000143774923022152 Filed on August 04, 2023

Income Statement

Concept	2023 Q3	2023 Q2

Balance Sheet

Concept	2023 Q3	2023 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$77.07M	$105.0M
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	$14.79M	$15.03M
YoY Change	-4.74%	-3.78%
Goodwill
YoY Change
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	$1.827B	$1.862B
YoY Change	7.17%	9.97%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.000M	$1.089M
YoY Change	890.1%	1181.18%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$1.000M	$1.089M
YoY Change	890.1%	1181.18%
LONG-TERM LIABILITIES
Long-Term Debt	$10.30M	$242.0M
YoY Change	-86.45%	2247.45%
Other Long-Term Liabilities	$18.90M	$18.64M
YoY Change	33.22%	52.97%
Total Long-Term Liabilities	$29.20M	$260.7M
YoY Change	-67.63%	1058.8%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.000M	$1.089M
Total Long-Term Liabilities	$29.20M	$260.7M
Total Liabilities	$1.709B	$1.738B
YoY Change	7.29%	10.86%
SHAREHOLDERS EQUITY
Retained Earnings	$70.22M	$67.85M
YoY Change	13.74%	16.81%
Common Stock	$102.8M	$102.4M
YoY Change	0.78%	0.61%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$117.8M	$124.1M
YoY Change
Total Liabilities & Shareholders Equity	$1.827B	$1.862B
YoY Change	7.17%	9.97%

Cashflow Statement

Concept	2023 Q3	2023 Q2

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12873000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	14193000	usd
CY2023Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.25
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.25
CY2023Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000
CY2023Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2023Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2023Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.25
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.25
CY2023Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000
CY2023Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	19750092
CY2023Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	19750092
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	19681644
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	19681644
CY2022Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.075
CY2022Q2	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	4442000	usd
CY2023Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.090
CY2023Q2	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	971000	usd
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.150
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	10833000	usd
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.180
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	477000	usd
CY2022Q4	fncb	Number Of Non Government Securities Of Any Individual Issuer Exceeding10 Percent Of Shareholders Equity NumberOfNonGovernmentSecuritiesOfAnyIndividualIssuerExceeding10PercentOfShareholdersEquity	0	pure
CY2022Q2	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	0	pure
	fncb	Number Of Real Estate Properties Foreclosed NumberOfRealEstatePropertiesForeclosed	0	pure
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2023Q2	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2022Q2	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	usd
	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	0
	fncb	Debt Securities Availableforsale Level3 To Level2 Transfers DebtSecuritiesAvailableforsaleLevel3ToLevel2Transfers	2	pure
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2023-06-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-38408
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	PA
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	23-2900790
	dei	Entity Address Address Line1 EntityAddressAddressLine1	102 E. Drinker St.
	dei	Entity Address City Or Town EntityAddressCityOrTown	Dunmore
	dei	Entity Address State Or Province EntityAddressStateOrProvince	PA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	18512
	dei	City Area Code CityAreaCode	570
	dei	Local Phone Number LocalPhoneNumber	346-7667
	dei	Security12b Title Security12bTitle	Common stock, $1.25 par value
	dei	Trading Symbol TradingSymbol	FNCB
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	true
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2023Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	19777614
CY2023Q2	us-gaap	Cash And Due From Banks CashAndDueFromBanks	32893000	usd
CY2022Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	26588000	usd
CY2023Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	72107000	usd
CY2022Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	15328000	usd
CY2023Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	105000000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	41916000	usd
CY2023Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	452877000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	476091000	usd
CY2023Q2	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	6337000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	7717000	usd
CY2023Q2	us-gaap	Restricted Investments RestrictedInvestments	9325000	usd
CY2022Q4	us-gaap	Restricted Investments RestrictedInvestments	8545000	usd
CY2023Q2	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	0	usd
CY2022Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	60000	usd
CY2023Q2	us-gaap	Notes Receivable Net NotesReceivableNet	1187722000	usd
CY2022Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1110124000	usd
CY2023Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	15028000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	15616000	usd
CY2023Q2	us-gaap	Interest Receivable InterestReceivable	6329000	usd
CY2022Q4	us-gaap	Interest Receivable InterestReceivable	5957000	usd
CY2023Q2	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	36901000	usd
CY2022Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	36499000	usd
CY2023Q2	us-gaap	Other Assets OtherAssets	42353000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	43005000	usd
CY2023Q2	us-gaap	Assets Assets	1861872000	usd
CY2022Q4	us-gaap	Assets Assets	1745530000	usd
CY2023Q2	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	285674000	usd
CY2022Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	305850000	usd
CY2023Q2	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1190390000	usd
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1114797000	usd
CY2023Q2	us-gaap	Deposits Deposits	1476064000	usd
CY2022Q4	us-gaap	Deposits Deposits	1420647000	usd
CY2023Q2	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	206712000	usd
CY2022Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	172050000	usd
CY2023Q2	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	10310000	usd
CY2022Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	10310000	usd
CY2023Q2	us-gaap	Long Term Debt LongTermDebt	242022000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	182360000	usd
CY2023Q2	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	1089000	usd
CY2022Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	171000	usd
CY2023Q2	us-gaap	Other Liabilities OtherLiabilities	18638000	usd
CY2022Q4	us-gaap	Other Liabilities OtherLiabilities	23403000	usd
CY2023Q2	us-gaap	Liabilities Liabilities	1737813000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	1626581000	usd
CY2023Q2	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q2	us-gaap	Common Stock Value CommonStockValue	24687000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	24602000	usd
CY2023Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	77757000	usd
CY2022Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	77502000	usd
CY2023Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	67851000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	64873000	usd
CY2023Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-46236000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-48028000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	124059000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	118949000	usd
CY2023Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1861872000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1745530000	usd
CY2023Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	15853000	usd
CY2022Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	11100000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	30418000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	21202000	usd
CY2023Q2	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	3064000	usd
CY2022Q2	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	2402000	usd
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	6141000	usd
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	4792000	usd
CY2023Q2	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	544000	usd
CY2022Q2	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	658000	usd
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	1131000	usd
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	1270000	usd
CY2023Q2	us-gaap	Dividend Income Operating DividendIncomeOperating	223000	usd
CY2022Q2	us-gaap	Dividend Income Operating DividendIncomeOperating	112000	usd
	us-gaap	Dividend Income Operating DividendIncomeOperating	496000	usd
	us-gaap	Dividend Income Operating DividendIncomeOperating	190000	usd
CY2023Q2	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	3831000	usd
CY2022Q2	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	3172000	usd
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	7768000	usd
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	6252000	usd
CY2023Q2	fncb	Interest On Interest Bearing Deposits In Other Banks InterestOnInterestBearingDepositsInOtherBanks	252000	usd
CY2022Q2	fncb	Interest On Interest Bearing Deposits In Other Banks InterestOnInterestBearingDepositsInOtherBanks	8000	usd
	fncb	Interest On Interest Bearing Deposits In Other Banks InterestOnInterestBearingDepositsInOtherBanks	429000	usd
	fncb	Interest On Interest Bearing Deposits In Other Banks InterestOnInterestBearingDepositsInOtherBanks	15000	usd
CY2023Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	19936000	usd
CY2022Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	14280000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	38615000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	27469000	usd
CY2023Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	6145000	usd
CY2022Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	346000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	10522000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	670000	usd
CY2023Q2	fncb	Interest Expense Federal Reserve Bank Advances Longterm InterestExpenseFederalReserveBankAdvancesLongterm	92000	usd
CY2022Q2	fncb	Interest Expense Federal Reserve Bank Advances Longterm InterestExpenseFederalReserveBankAdvancesLongterm	0	usd
	fncb	Interest Expense Federal Reserve Bank Advances Longterm InterestExpenseFederalReserveBankAdvancesLongterm	92000	usd
	fncb	Interest Expense Federal Reserve Bank Advances Longterm InterestExpenseFederalReserveBankAdvancesLongterm	0	usd
CY2023Q2	fncb	Interest Expense Federal Home Loan Bank InterestExpenseFederalHomeLoanBank	1896000	usd
CY2022Q2	fncb	Interest Expense Federal Home Loan Bank InterestExpenseFederalHomeLoanBank	242000	usd
	fncb	Interest Expense Federal Home Loan Bank InterestExpenseFederalHomeLoanBank	4447000	usd
	fncb	Interest Expense Federal Home Loan Bank InterestExpenseFederalHomeLoanBank	273000	usd
CY2023Q2	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	174000	usd
CY2022Q2	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	70000	usd
	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	340000	usd
	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	121000	usd
CY2023Q2	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	2162000	usd
CY2022Q2	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	312000	usd
	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	4879000	usd
	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	394000	usd
CY2023Q2	us-gaap	Interest Expense InterestExpense	8307000	usd
CY2022Q2	us-gaap	Interest Expense InterestExpense	658000	usd
	us-gaap	Interest Expense InterestExpense	15401000	usd
	us-gaap	Interest Expense InterestExpense	1064000	usd
CY2023Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	11629000	usd
CY2022Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	13622000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	23214000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	26405000	usd
CY2023Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	799000	usd
CY2022Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	62000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1774000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	821000	usd
CY2023Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	10830000	usd
CY2022Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	13560000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	21440000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	25584000	usd
CY2023Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	1123000	usd
CY2022Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	1065000	usd
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	2187000	usd
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	2115000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Gain Loss DebtSecuritiesAvailableForSaleGainLoss	90000	usd
CY2022Q2	us-gaap	Debt Securities Available For Sale Gain Loss DebtSecuritiesAvailableForSaleGainLoss	-35000	usd
	us-gaap	Debt Securities Available For Sale Gain Loss DebtSecuritiesAvailableForSaleGainLoss	252000	usd
	us-gaap	Debt Securities Available For Sale Gain Loss DebtSecuritiesAvailableForSaleGainLoss	-35000	usd
CY2023Q2	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-1032000	usd
CY2022Q2	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-82000	usd
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-1540000	usd
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-207000	usd
CY2023Q2	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	0	usd
CY2022Q2	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	32000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	1000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	32000	usd
CY2023Q2	fncb	Loan Related Fees LoanRelatedFees	52000	usd
CY2022Q2	fncb	Loan Related Fees LoanRelatedFees	50000	usd
	fncb	Loan Related Fees LoanRelatedFees	171000	usd
	fncb	Loan Related Fees LoanRelatedFees	107000	usd
CY2023Q2	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	205000	usd
CY2022Q2	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	197000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	402000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	342000	usd
CY2023Q2	fncb	Revenue From Merchant Services RevenueFromMerchantServices	157000	usd
CY2022Q2	fncb	Revenue From Merchant Services RevenueFromMerchantServices	172000	usd
	fncb	Revenue From Merchant Services RevenueFromMerchantServices	318000	usd
	fncb	Revenue From Merchant Services RevenueFromMerchantServices	371000	usd
CY2023Q2	fncb	Revenue From Wealth Management Services RevenueFromWealthManagementServices	245000	usd
CY2022Q2	fncb	Revenue From Wealth Management Services RevenueFromWealthManagementServices	115000	usd
	fncb	Revenue From Wealth Management Services RevenueFromWealthManagementServices	483000	usd
	fncb	Revenue From Wealth Management Services RevenueFromWealthManagementServices	236000	usd
CY2023Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	108000	usd
CY2022Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	143000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	345000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	486000	usd
CY2023Q2	us-gaap	Noninterest Income NoninterestIncome	948000	usd
CY2022Q2	us-gaap	Noninterest Income NoninterestIncome	1657000	usd
	us-gaap	Noninterest Income NoninterestIncome	2619000	usd
	us-gaap	Noninterest Income NoninterestIncome	3447000	usd
CY2023Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	4529000	usd
CY2022Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	4519000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	9924000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	9177000	usd
CY2023Q2	us-gaap	Occupancy Net OccupancyNet	550000	usd
CY2022Q2	us-gaap	Occupancy Net OccupancyNet	447000	usd
	us-gaap	Occupancy Net OccupancyNet	1071000	usd
	us-gaap	Occupancy Net OccupancyNet	995000	usd
CY2023Q2	us-gaap	Equipment Expense EquipmentExpense	232000	usd
CY2022Q2	us-gaap	Equipment Expense EquipmentExpense	316000	usd
	us-gaap	Equipment Expense EquipmentExpense	504000	usd
	us-gaap	Equipment Expense EquipmentExpense	640000	usd
CY2023Q2	us-gaap	Advertising Expense AdvertisingExpense	188000	usd
CY2022Q2	us-gaap	Advertising Expense AdvertisingExpense	227000	usd
	us-gaap	Advertising Expense AdvertisingExpense	397000	usd
	us-gaap	Advertising Expense AdvertisingExpense	359000	usd
CY2023Q2	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	952000	usd
CY2022Q2	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1009000	usd
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1950000	usd
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2072000	usd
CY2023Q2	fncb	Regulatory Assessments RegulatoryAssessments	312000	usd
CY2022Q2	fncb	Regulatory Assessments RegulatoryAssessments	196000	usd
	fncb	Regulatory Assessments RegulatoryAssessments	525000	usd
	fncb	Regulatory Assessments RegulatoryAssessments	421000	usd
CY2023Q2	us-gaap	General Insurance Expense GeneralInsuranceExpense	171000	usd
CY2022Q2	us-gaap	General Insurance Expense GeneralInsuranceExpense	155000	usd
	us-gaap	General Insurance Expense GeneralInsuranceExpense	343000	usd
	us-gaap	General Insurance Expense GeneralInsuranceExpense	310000	usd
CY2023Q2	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	263000	usd
CY2022Q2	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	375000	usd
	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	412000	usd
	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	716000	usd
CY2023Q2	us-gaap	Professional Fees ProfessionalFees	214000	usd
CY2022Q2	us-gaap	Professional Fees ProfessionalFees	213000	usd
	us-gaap	Professional Fees ProfessionalFees	516000	usd
	us-gaap	Professional Fees ProfessionalFees	540000	usd
CY2023Q2	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	-225000	usd
CY2022Q2	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	75000	usd
	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	-494000	usd
	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	123000	usd
CY2023Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	916000	usd
CY2022Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	700000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1875000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1423000	usd
CY2023Q2	us-gaap	Noninterest Expense NoninterestExpense	8102000	usd
CY2022Q2	us-gaap	Noninterest Expense NoninterestExpense	8232000	usd
	us-gaap	Noninterest Expense NoninterestExpense	17023000	usd
	us-gaap	Noninterest Expense NoninterestExpense	16776000	usd
CY2023Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	3676000	usd
CY2022Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	6985000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	7036000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	12255000	usd
CY2023Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	871000	usd
CY2022Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1247000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1568000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2164000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	2805000	usd
CY2022Q2	us-gaap	Net Income Loss NetIncomeLoss	5738000	usd
	us-gaap	Net Income Loss NetIncomeLoss	5468000	usd
	us-gaap	Net Income Loss NetIncomeLoss	10091000	usd
CY2023Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.14
CY2022Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.29
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.28
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
CY2023Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.14
CY2022Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.29
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.28
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2023Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.090
CY2022Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.075
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.180
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.150
CY2023Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19715136
CY2022Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19677109
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19698837
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19805485
CY2023Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19715136
CY2022Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19694125
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19703089
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19832405
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	2805000	usd
CY2022Q2	us-gaap	Net Income Loss NetIncomeLoss	5738000	usd
	us-gaap	Net Income Loss NetIncomeLoss	5468000	usd
	us-gaap	Net Income Loss NetIncomeLoss	10091000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-5843000	usd
CY2022Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-21325000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	2931000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-52286000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-1226000	usd
CY2022Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-4478000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	616000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-10980000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-4617000	usd
CY2022Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-16847000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	2315000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-41306000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	90000	usd
CY2022Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-35000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	252000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-35000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	19000	usd
CY2022Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-7000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	53000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-7000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	71000	usd
CY2022Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-28000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	199000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-28000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	1306000	usd
CY2022Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	139000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	-410000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	666000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	274000	usd
CY2022Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	29000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-86000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	140000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	1032000	usd
CY2022Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	110000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-324000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	526000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3656000	usd
CY2022Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-16709000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1792000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-40752000	usd
CY2023Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-851000	usd
CY2022Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-10971000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	7260000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-30661000	usd
CY2022Q1	us-gaap	Stockholders Equity StockholdersEquity	138389000	usd
CY2022Q2	us-gaap	Net Income Loss NetIncomeLoss	5738000	usd
CY2022Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1477000	usd
CY2022Q2	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	122000	usd
CY2022Q2	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	550000	usd
CY2022Q2	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	usd
CY2022Q2	fncb	Stock Issued During Period Value Dividend Reinvestment Plan Or Optional Cash Purchase Plan StockIssuedDuringPeriodValueDividendReinvestmentPlanOrOptionalCashPurchasePlan	-1000	usd
CY2022Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-16709000	usd
CY2022Q2	us-gaap	Stockholders Equity StockholdersEquity	125512000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	126494000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	2805000	usd
CY2023Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1777000	usd
CY2023Q2	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	153000	usd
CY2023Q2	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	21000	usd
CY2023Q2	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	usd
CY2023Q2	fncb	Stock Issued During Period Value Dividend Reinvestment Plan Or Optional Cash Purchase Plan StockIssuedDuringPeriodValueDividendReinvestmentPlanOrOptionalCashPurchasePlan	19000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3656000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	124059000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	162457000	usd
	us-gaap	Net Income Loss NetIncomeLoss	10091000	usd
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	2976000	usd
	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	222000	usd
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	3530000	usd
	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	usd
	fncb	Stock Issued During Period Value Dividend Reinvestment Plan Or Optional Cash Purchase Plan StockIssuedDuringPeriodValueDividendReinvestmentPlanOrOptionalCashPurchasePlan	0	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-40752000	usd
CY2022Q2	us-gaap	Stockholders Equity StockholdersEquity	125512000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	118949000	usd
	us-gaap	Net Income Loss NetIncomeLoss	5468000	usd
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3548000	usd
	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	274000	usd
	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	21000	usd
	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	usd
	fncb	Stock Issued During Period Value Dividend Reinvestment Plan Or Optional Cash Purchase Plan StockIssuedDuringPeriodValueDividendReinvestmentPlanOrOptionalCashPurchasePlan	23000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1792000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	124059000	usd
	us-gaap	Net Income Loss NetIncomeLoss	5468000	usd
	us-gaap	Net Income Loss NetIncomeLoss	10091000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-973000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1559000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	10000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	4000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	681000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	778000	usd
	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	-398000	usd
	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	736000	usd
	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	0	usd
	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	-3000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	274000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	222000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1774000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	821000	usd
	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	-494000	usd
	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	123000	usd
	us-gaap	Debt Securities Available For Sale Gain Loss DebtSecuritiesAvailableForSaleGainLoss	252000	usd
	us-gaap	Debt Securities Available For Sale Gain Loss DebtSecuritiesAvailableForSaleGainLoss	-35000	usd
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-1540000	usd
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-207000	usd
	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	1000	usd
	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	32000	usd
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-0	usd
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	3000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	402000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	342000	usd
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	61000	usd
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	2686000	usd
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	-0	usd
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	3321000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	372000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	460000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	23000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-500000	usd
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	918000	usd
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	36000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-6051000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-4893000	usd
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-986000	usd
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-2827000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	4482000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	7264000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	17279000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	23259000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	10394000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	2372000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	2501000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	52514000	usd
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	160000	usd
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	592000	usd
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	780000	usd
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	3876000	usd
	us-gaap	Payments For Proceeds From Federal Reserve Bank Stock PaymentsForProceedsFromFederalReserveBankStock	77091000	usd
	us-gaap	Payments For Proceeds From Federal Reserve Bank Stock PaymentsForProceedsFromFederalReserveBankStock	108381000	usd
	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	0	usd
	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	695000	usd
	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	-0	usd
	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	3000000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	93000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	315000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-52952000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-142352000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	55417000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-28084000	usd
	fncb	Proceeds From Payments Of Federal Home Loan Bank Of Pittsburgh Advances Overnight ProceedsFromPaymentsOfFederalHomeLoanBankOfPittsburghAdvancesOvernight	-44750000	usd
	fncb	Proceeds From Payments Of Federal Home Loan Bank Of Pittsburgh Advances Overnight ProceedsFromPaymentsOfFederalHomeLoanBankOfPittsburghAdvancesOvernight	118050000	usd
	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	129412000	usd
	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	10000000	usd
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	50000000	usd
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	30000000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	-0	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3530000	usd
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	23000	usd
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
	us-gaap	Payments Of Dividends PaymentsOfDividends	3548000	usd
	us-gaap	Payments Of Dividends PaymentsOfDividends	2976000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	111554000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	63460000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	63084000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-71628000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	41916000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	99020000	usd
CY2023Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	105000000	usd
CY2022Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	27392000	usd
	us-gaap	Interest Paid Net InterestPaidNet	14483000	usd
	us-gaap	Interest Paid Net InterestPaidNet	1028000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1700000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2200000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	19000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	usd
	us-gaap	Stock Issued1 StockIssued1	21000	usd
	us-gaap	Stock Issued1 StockIssued1	0	usd
CY2023Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	-11557000	usd
CY2023Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	15759000	usd
CY2023Q1	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	2217000	usd
CY2023Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-65953000	usd
CY2023Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	512019000	usd
CY2023Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	33000	usd
CY2023Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	59175000	usd
CY2023Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	452877000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	537912000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	96000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	61917000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	476091000	usd
CY2023Q2	fncb	Number Of Non Government Securities Of Any Individual Issuer Exceeding10 Percent Of Shareholders Equity NumberOfNonGovernmentSecuritiesOfAnyIndividualIssuerExceeding10PercentOfShareholdersEquity	0	pure
CY2023Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	19841000	usd
CY2023Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	19617000	usd
CY2023Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	69065000	usd
CY2023Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	64422000	usd
CY2023Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	97799000	usd
CY2023Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	83673000	usd
CY2023Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	119583000	usd
CY2023Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	104361000	usd
CY2023Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	512019000	usd
CY2023Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	452877000	usd
CY2023Q2	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	3340000	usd
CY2022Q2	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	2372000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	10394000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	2372000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	90000	usd
CY2022Q2	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	252000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	-0	usd
CY2022Q2	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	35000	usd
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	-0	usd
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	35000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	29	pure
CY2023Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	28591000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1397000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	354	pure
CY2023Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	416244000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	57778000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	383	pure
CY2023Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	444835000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	59175000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	205	pure
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	240563000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	19668000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	192	pure
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	225813000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	42249000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	397	pure
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	466376000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	61917000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	383	pure
CY2023Q2	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-1032000	usd
CY2022Q2	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-82000	usd
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-1540000	usd
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-207000	usd
CY2023Q2	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
CY2022Q2	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
CY2023Q2	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-1032000	usd
CY2022Q2	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-82000	usd
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-1540000	usd
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-207000	usd
CY2023Q2	fncb	Atlantic Community Bankers Bank Stock AtlanticCommunityBankersBankStock	10000	usd
CY2022Q4	fncb	Atlantic Community Bankers Bank Stock AtlanticCommunityBankersBankStock	10000	usd
CY2023Q2	us-gaap	Restricted Investments RestrictedInvestments	9325000	usd
CY2022Q4	us-gaap	Restricted Investments RestrictedInvestments	8545000	usd
CY2023Q2	us-gaap	Financing Receivable Unamortized Loan Fee Cost FinancingReceivableUnamortizedLoanFeeCost	2300000	usd
CY2023Q2	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	857000	usd
CY2023Q2	us-gaap	Financing Receivable Unamortized Purchase Premium Discount FinancingReceivableUnamortizedPurchasePremiumDiscount	228000	usd
CY2023Q2	fncb	Financing Receivable Accrued Interest Receivable FinancingReceivableAccruedInterestReceivable	3100000	usd
CY2022Q4	fncb	Financing Receivable Accrued Interest Receivable FinancingReceivableAccruedInterestReceivable	2100000	usd
CY2023Q2	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1200595000	usd
CY2022Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1123343000	usd
CY2023Q2	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	-0	usd
CY2022Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	810000	usd
CY2023Q2	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	0	usd
CY2022Q4	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	1784000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12873000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	14193000	usd
CY2023Q2	us-gaap	Notes Receivable Net NotesReceivableNet	1187722000	usd
CY2022Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1110124000	usd
	fncb	Loans Still Classified As Non Accrual Status Period Of Past Due LoansStillClassifiedAsNonAccrualStatusPeriodOfPastDue	P90D
CY2023Q2	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	126902000	usd
CY2023Q2	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	314232000	usd
CY2023Q2	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	261209000	usd
CY2023Q2	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	105097000	usd
CY2023Q2	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	112121000	usd
CY2023Q2	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	158474000	usd
CY2023Q2	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	122560000	usd
CY2023Q2	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1200595000	usd
	us-gaap	Financing Receivable Year One Originated Current Fiscal Year Writeoff FinancingReceivableYearOneOriginatedCurrentFiscalYearWriteoff	0	usd
	us-gaap	Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff FinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff	731000	usd
	us-gaap	Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff FinancingReceivableYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff	488000	usd
	us-gaap	Financing Receivable Year Four Originated Three Years Before Current Fiscal Year Writeoff FinancingReceivableYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff	3000	usd
	us-gaap	Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff FinancingReceivableYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff	6000	usd
	us-gaap	Financing Receivable Originated More Than Five Years Before Current Fiscal Year Writeoff FinancingReceivableOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff	44000	usd
	us-gaap	Financing Receivable Revolving Writeoff FinancingReceivableRevolvingWriteoff	57000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1329000	usd
CY2022Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1123343000	usd
CY2023Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12279000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	553000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	348000	usd
CY2023Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	799000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12873000	usd
CY2022Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	13129000	usd
CY2022Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	303000	usd
CY2022Q2	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	493000	usd
CY2022Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	62000	usd
CY2022Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	13381000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	14193000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1329000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	871000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1774000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12873000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12416000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	398000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	542000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	821000	usd
CY2022Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	13381000	usd
CY2023Q2	fncb	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment	0	usd
CY2023Q2	fncb	Financing Receivables Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivablesAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	12873000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12873000	usd
CY2023Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	3407000	usd
CY2023Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1197188000	usd
CY2023Q2	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1200595000	usd
CY2022Q4	fncb	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment	34000	usd
CY2022Q4	fncb	Financing Receivables Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivablesAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	14159000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	14193000	usd
CY2022Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	7600000	usd
CY2022Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1115743000	usd
CY2022Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1123343000	usd
CY2023Q2	fncb	Reserves For Unfunded Commitments ReservesForUnfundedCommitments	1700000	usd
CY2022Q4	fncb	Reserves For Unfunded Commitments ReservesForUnfundedCommitments	2200000	usd
CY2023Q1	fncb	Reserves For Unfunded Commitments ReservesForUnfundedCommitments	1300000	usd
CY2023Q2	fncb	Financing Receivable Nonaccrual Credit FinancingReceivableNonaccrualCredit	255000	usd
	fncb	Financing Receivable Nonaccrual Credit FinancingReceivableNonaccrualCredit	494000	usd
CY2022Q2	fncb	Financing Receivable Nonaccrual Credit FinancingReceivableNonaccrualCredit	75000	usd
	fncb	Financing Receivable Nonaccrual Credit FinancingReceivableNonaccrualCredit	123000	usd
CY2023Q2	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	49000	usd
CY2023Q2	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	3711000	usd
CY2023Q2	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1200595000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	79000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	2763000	usd
CY2022Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1123343000	usd
CY2023Q2	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	3700000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	2800000	usd
	fncb	Loans Still Classified As Non Accrual Status Period Of Past Due LoansStillClassifiedAsNonAccrualStatusPeriodOfPastDue	P90D
CY2023Q2	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	49000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	79000	usd
CY2022Q4	fncb	Evaluated Individually For Impairment Nonaccrued Loans Other Than Td Rs Threshold EvaluatedIndividuallyForImpairmentNonaccruedLoansOtherThanTDRsThreshold	100000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	1720000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	2066000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	5880000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	6098000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	34000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	7600000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	8164000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	34000	usd
CY2022Q2	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	8646000	usd
CY2022Q2	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	79000	usd
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	9277000	usd
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	152000	usd
CY2022Q2	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	43000	usd
	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	86000	usd
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	0	pure
	fncb	Number Of Real Estate Properties Foreclosed NumberOfRealEstatePropertiesForeclosed	0	pure
CY2023Q2	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	285674000	usd
CY2022Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	305850000	usd
CY2023Q2	fncb	Interest Bearing Deposits Demand InterestBearingDepositsDemand	697775000	usd
CY2022Q4	fncb	Interest Bearing Deposits Demand InterestBearingDepositsDemand	808497000	usd
CY2023Q2	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	136092000	usd
CY2022Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	148426000	usd
CY2023Q2	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	53186000	usd
CY2022Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	24902000	usd
CY2023Q2	fncb	Time Deposits Below Fdic Insurance Limit TimeDepositsBelowFdicInsuranceLimit	303337000	usd
CY2022Q4	fncb	Time Deposits Below Fdic Insurance Limit TimeDepositsBelowFdicInsuranceLimit	132972000	usd
CY2023Q2	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1190390000	usd
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1114797000	usd
CY2023Q2	us-gaap	Deposits Deposits	1476064000	usd
CY2022Q4	us-gaap	Deposits Deposits	1420647000	usd
CY2023Q2	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	134700000	usd
CY2022Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	23900000	usd
CY2023Q2	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	242022000	usd
CY2022Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	182360000	usd
CY2023Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	2192000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	2104000	usd
CY2023Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	1417000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	931000	usd
CY2023Q2	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	0	usd
CY2022Q4	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	0	usd
CY2023Q2	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	0	usd
CY2022Q4	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	0	usd
CY2023Q2	fncb	Derivative Collateral Right To Reclaim Securities And Cash DerivativeCollateralRightToReclaimSecuritiesAndCash	2192000	usd
CY2022Q4	fncb	Derivative Collateral Right To Reclaim Securities And Cash DerivativeCollateralRightToReclaimSecuritiesAndCash	1946000	usd
CY2023Q2	fncb	Derivative Collateral Obligation To Return Securities And Cash DerivativeCollateralObligationToReturnSecuritiesAndCash	129000	usd
CY2022Q4	fncb	Derivative Collateral Obligation To Return Securities And Cash DerivativeCollateralObligationToReturnSecuritiesAndCash	0	usd
CY2023Q2	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	0	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	158000	usd
CY2023Q2	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	1288000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	931000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	1597000	usd
	fncb	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax Included Component OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTaxIncludedComponent	1597000	usd
	us-gaap	Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease Before Adjustments After Tax OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseBeforeAdjustmentsAfterTax	0	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-291000	usd
	fncb	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax Included Component OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTaxIncludedComponent	-291000	usd
	us-gaap	Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease Adjustments After Tax OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAdjustmentsAfterTax	0	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	168000	usd
	fncb	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax Included Component OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTaxIncludedComponent	168000	usd
	us-gaap	Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease Before Adjustments After Tax OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseBeforeAdjustmentsAfterTax	0	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-30000	usd
	fncb	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax Included Component OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTaxIncludedComponent	-30000	usd
	us-gaap	Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease Adjustments After Tax OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAdjustmentsAfterTax	0	usd
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2023Q2	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	772000	usd
CY2023Q2	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100	pure
CY2022Q2	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1467000	usd
CY2022Q2	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100	pure
	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1478000	usd
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100	pure
	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	2574000	usd
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100	pure
CY2023Q2	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	206000	usd
CY2023Q2	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.0560	pure
CY2022Q2	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	213000	usd
CY2022Q2	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.0304	pure
	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	418000	usd
	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.0594	pure
	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	414000	usd
	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.0338	pure
CY2023Q2	fncb	Income Tax Reconciliation Non Deductible Interest Expense IncomeTaxReconciliationNonDeductibleInterestExpense	22000	usd
CY2023Q2	fncb	Income Tax Reconciliation Nondeductible Interest Expense Percent IncomeTaxReconciliationNondeductibleInterestExpensePercent	0.0060	pure
CY2022Q2	fncb	Income Tax Reconciliation Non Deductible Interest Expense IncomeTaxReconciliationNonDeductibleInterestExpense	12000	usd
CY2022Q2	fncb	Income Tax Reconciliation Nondeductible Interest Expense Percent IncomeTaxReconciliationNondeductibleInterestExpensePercent	0.0017	pure
	fncb	Income Tax Reconciliation Non Deductible Interest Expense IncomeTaxReconciliationNonDeductibleInterestExpense	43000	usd
	fncb	Income Tax Reconciliation Nondeductible Interest Expense Percent IncomeTaxReconciliationNondeductibleInterestExpensePercent	0.0061	pure
	fncb	Income Tax Reconciliation Non Deductible Interest Expense IncomeTaxReconciliationNonDeductibleInterestExpense	23000	usd
	fncb	Income Tax Reconciliation Nondeductible Interest Expense Percent IncomeTaxReconciliationNondeductibleInterestExpensePercent	0.0019	pure
CY2023Q2	fncb	Income Tax Effect Of Nontaxable Income Related To Income From Bank Owned Life Insurance IncomeTaxEffectOfNontaxableIncomeRelatedToIncomeFromBankOwnedLifeInsurance	43000	usd
CY2023Q2	fncb	Income Tax Effect Of Nontaxable Income Related To Income From Bank Owned Life Insurance Percent IncomeTaxEffectOfNontaxableIncomeRelatedToIncomeFromBankOwnedLifeInsurancePercent	-0.0117	pure
CY2022Q2	fncb	Income Tax Effect Of Nontaxable Income Related To Income From Bank Owned Life Insurance IncomeTaxEffectOfNontaxableIncomeRelatedToIncomeFromBankOwnedLifeInsurance	41000	usd
CY2022Q2	fncb	Income Tax Effect Of Nontaxable Income Related To Income From Bank Owned Life Insurance Percent IncomeTaxEffectOfNontaxableIncomeRelatedToIncomeFromBankOwnedLifeInsurancePercent	-0.0059	pure
	fncb	Income Tax Effect Of Nontaxable Income Related To Income From Bank Owned Life Insurance IncomeTaxEffectOfNontaxableIncomeRelatedToIncomeFromBankOwnedLifeInsurance	84000	usd
	fncb	Income Tax Effect Of Nontaxable Income Related To Income From Bank Owned Life Insurance Percent IncomeTaxEffectOfNontaxableIncomeRelatedToIncomeFromBankOwnedLifeInsurancePercent	-0.0119	pure
	fncb	Income Tax Effect Of Nontaxable Income Related To Income From Bank Owned Life Insurance IncomeTaxEffectOfNontaxableIncomeRelatedToIncomeFromBankOwnedLifeInsurance	72000	usd
	fncb	Income Tax Effect Of Nontaxable Income Related To Income From Bank Owned Life Insurance Percent IncomeTaxEffectOfNontaxableIncomeRelatedToIncomeFromBankOwnedLifeInsurancePercent	-0.0059	pure
CY2023Q2	fncb	Effective Income Tax Rate Reconciliation Unrealized Gain Loss On Equity Securities Amount EffectiveIncomeTaxRateReconciliationUnrealizedGainLossOnEquitySecuritiesAmount	224000	usd
CY2023Q2	fncb	Effective Income Tax Rate Reconciliation Unrealized Gain Loss On Equity Securities Percent EffectiveIncomeTaxRateReconciliationUnrealizedGainLossOnEquitySecuritiesPercent	0.0609	pure
CY2022Q2	fncb	Effective Income Tax Rate Reconciliation Unrealized Gain Loss On Equity Securities Amount EffectiveIncomeTaxRateReconciliationUnrealizedGainLossOnEquitySecuritiesAmount	17000	usd
CY2022Q2	fncb	Effective Income Tax Rate Reconciliation Unrealized Gain Loss On Equity Securities Percent EffectiveIncomeTaxRateReconciliationUnrealizedGainLossOnEquitySecuritiesPercent	0.0024	pure
	fncb	Effective Income Tax Rate Reconciliation Unrealized Gain Loss On Equity Securities Amount EffectiveIncomeTaxRateReconciliationUnrealizedGainLossOnEquitySecuritiesAmount	331000	usd
	fncb	Effective Income Tax Rate Reconciliation Unrealized Gain Loss On Equity Securities Percent EffectiveIncomeTaxRateReconciliationUnrealizedGainLossOnEquitySecuritiesPercent	0.0471	pure
	fncb	Effective Income Tax Rate Reconciliation Unrealized Gain Loss On Equity Securities Amount EffectiveIncomeTaxRateReconciliationUnrealizedGainLossOnEquitySecuritiesAmount	43000	usd
	fncb	Effective Income Tax Rate Reconciliation Unrealized Gain Loss On Equity Securities Percent EffectiveIncomeTaxRateReconciliationUnrealizedGainLossOnEquitySecuritiesPercent	0.0035	pure
CY2023Q2	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	102000	usd
CY2023Q2	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.0277	pure
CY2022Q2	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	5000	usd
CY2022Q2	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.0007	pure
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	387000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	388000	usd
CY2023Q2	fncb	Lessee Operating Lease Liability Payments Due After Year Four LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour	2271000	usd
	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	218000	usd
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.0310	pure
	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	10000	usd
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.0009	pure
CY2023Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	871000	usd
CY2023Q2	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.2369	pure
CY2022Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1247000	usd
CY2022Q2	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.1785	pure
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1568000	usd
	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.2229	pure
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2164000	usd
	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.1766	pure
CY2023Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	usd
CY2023Q1	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	89163000	usd
CY2022Q1	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	76790000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	79144000	usd
CY2021Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	71437000	usd
CY2023Q2	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	64577000	usd
CY2022Q2	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	14044000	usd
	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	114234000	usd
	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	29406000	usd
CY2023Q2	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	56269000	usd
CY2022Q2	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	8090000	usd
	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	95907000	usd
	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	18099000	usd
CY2023Q2	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	97471000	usd
CY2022Q2	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	82744000	usd
CY2023Q2	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	97471000	usd
CY2022Q2	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	82744000	usd
CY2023Q2	us-gaap	Operating Lease Expense OperatingLeaseExpense	101000	usd
	us-gaap	Operating Lease Expense OperatingLeaseExpense	201000	usd
CY2022Q2	us-gaap	Operating Lease Expense OperatingLeaseExpense	75000	usd
	us-gaap	Operating Lease Expense OperatingLeaseExpense	169000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	192000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	417000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	388000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	4043000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	691000	usd
CY2023Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P11Y1M6D
CY2022Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P11Y10M24D
CY2023Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0331	pure
CY2022Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0327	pure
	us-gaap	Operating Lease Payments OperatingLeasePayments	225000	usd
	us-gaap	Operating Lease Payments OperatingLeasePayments	217000	usd
CY2023Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.090
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.180
CY2022Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.075
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.150
CY2023Q2	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	5146
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	7375
CY2022Q2	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	1059
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	2369
CY2023Q1	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	750000
CY2023Q2	us-gaap	Capital Capital	177726000	usd
CY2023Q2	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1297	pure
CY2023Q2	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800	pure
CY2023Q2	fncb	Capital Required For Capital Adequacy To Risk Weighted Assets With Capital Conservation Buffer CapitalRequiredForCapitalAdequacyToRiskWeightedAssetsWithCapitalConservationBuffer	0.1050	pure
CY2023Q2	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.1000	pure
CY2023Q2	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	163130000	usd
CY2023Q2	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1191	pure
CY2023Q2	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600	pure
CY2023Q2	fncb	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets With Capital Conservation Buffer TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssetsWithCapitalConservationBuffer	0.0850	pure
CY2023Q2	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.0800	pure
CY2023Q2	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	163130000	usd
CY2023Q2	us-gaap	Common Equity Tier One Capital Ratio CommonEquityTierOneCapitalRatio	0.1191	pure
CY2023Q2	us-gaap	Banking Regulation Common Equity Tier One Risk Based Capital Ratio Capital Adequacy Minimum BankingRegulationCommonEquityTierOneRiskBasedCapitalRatioCapitalAdequacyMinimum	0.0450	pure
CY2023Q2	fncb	Common Equity Tier One Risk Basedcapital Required For Capital Adequacy To Risk Weighted Assets With Capital Conservation Buffer CommonEquityTierOneRiskBasedcapitalRequiredForCapitalAdequacyToRiskWeightedAssetsWithCapitalConservationBuffer	0.0700	pure
CY2023Q2	us-gaap	Banking Regulation Common Equity Tier One Risk Based Capital Ratio Well Capitalized Minimum BankingRegulationCommonEquityTierOneRiskBasedCapitalRatioWellCapitalizedMinimum	0.0650	pure
CY2023Q2	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	163130000	usd
CY2023Q2	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0898	pure
CY2023Q2	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400	pure
CY2023Q2	fncb	Tier One Leverage Capital Required For Capital Adequacy To Average Assets With Capital Conservation Buffer TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssetsWithCapitalConservationBuffer	0.0400	pure
CY2023Q2	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.0500	pure
CY2023Q2	us-gaap	Risk Weighted Assets RiskWeightedAssets	1369855000	usd
CY2023Q2	fncb	Average Assets AverageAssets	1817390000	usd
CY2022Q4	us-gaap	Capital Capital	169984000	usd
CY2022Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1311	pure
CY2022Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800	pure
CY2022Q4	fncb	Capital Required For Capital Adequacy To Risk Weighted Assets With Capital Conservation Buffer CapitalRequiredForCapitalAdequacyToRiskWeightedAssetsWithCapitalConservationBuffer	0.1050	pure
CY2022Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.1000	pure
CY2022Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	154842000	usd
CY2022Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1194	pure
CY2022Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600	pure
CY2022Q4	fncb	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets With Capital Conservation Buffer TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssetsWithCapitalConservationBuffer	0.0850	pure
CY2022Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.0800	pure
CY2022Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	154842000	usd
CY2022Q4	us-gaap	Common Equity Tier One Capital Ratio CommonEquityTierOneCapitalRatio	0.1194	pure
CY2022Q4	us-gaap	Banking Regulation Common Equity Tier One Risk Based Capital Ratio Capital Adequacy Minimum BankingRegulationCommonEquityTierOneRiskBasedCapitalRatioCapitalAdequacyMinimum	0.0450	pure
CY2022Q4	fncb	Common Equity Tier One Risk Basedcapital Required For Capital Adequacy To Risk Weighted Assets With Capital Conservation Buffer CommonEquityTierOneRiskBasedcapitalRequiredForCapitalAdequacyToRiskWeightedAssetsWithCapitalConservationBuffer	0.0700	pure
CY2022Q4	us-gaap	Banking Regulation Common Equity Tier One Risk Based Capital Ratio Well Capitalized Minimum BankingRegulationCommonEquityTierOneRiskBasedCapitalRatioWellCapitalizedMinimum	0.0650	pure
CY2022Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	154842000	usd
CY2022Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0877	pure
CY2022Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400	pure
CY2022Q4	fncb	Tier One Leverage Capital Required For Capital Adequacy To Average Assets With Capital Conservation Buffer TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssetsWithCapitalConservationBuffer	0.0400	pure
CY2022Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.0500	pure
CY2022Q4	us-gaap	Risk Weighted Assets RiskWeightedAssets	1296618000	usd
CY2022Q4	fncb	Average Assets AverageAssets	1765251000	usd
CY2023Q2	fncb	Debt Securities Availableforsale Level3 To Level2 Transfers DebtSecuritiesAvailableforsaleLevel3ToLevel2Transfers	2	pure
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	2805000	usd
CY2022Q2	us-gaap	Net Income Loss NetIncomeLoss	5738000	usd
	us-gaap	Net Income Loss NetIncomeLoss	5468000	usd
	us-gaap	Net Income Loss NetIncomeLoss	10091000	usd
CY2023Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19715136
CY2022Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19677109
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19698837
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19805485
CY2023Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0
CY2022Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	17016
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	4252
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	26920
CY2023Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19715136
CY2022Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19694125
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19703089
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19832405
CY2023Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.14
CY2022Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.29
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.28
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
CY2023Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.14
CY2022Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.29
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.28
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51

Files In Submission

Name	View Source	Status
0001437749-23-022152-index-headers.html	Edgar Link	pending
0001437749-23-022152-index.html	Edgar Link	pending
0001437749-23-022152.txt	Edgar Link	pending
0001437749-23-022152-xbrl.zip	Edgar Link	pending
ex_529665.htm	Edgar Link	pending
ex_529666.htm	Edgar Link	pending
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Financial_Report.xlsx	Edgar Link	pending
fncb-20230630.xsd	Edgar Link	pending
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fncb20230630_10q_htm.xml	Edgar Link	completed
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FNCB Bancorp, Inc.

2023 Q3 Form 10-Q Financial Statement

#000143774923022152 Filed on August 04, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission