$AUBN
AUBURN NATIONAL BANCORPORATION, INC Stock $aubn

$aubn Overview Financials Valuation SEC Filings Company Website

2023 Q4 Form 10-Q Financial Statement

#000119312523272449 Filed on November 07, 2023

Income Statement

Concept	2023 Q4	2023 Q3	2022 Q3
Revenue		$148.0K	$158.0K
YoY Change		-6.33%	-97.63%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$420.0K	$420.0K	$467.0K
YoY Change	-2.33%	-10.06%	37.35%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense		$2.371M	$529.0K
YoY Change		348.2%	-15.22%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	-$5.499M	$1.670M	$2.430M
YoY Change	-192.89%	-31.28%	7.47%
Income Tax	-$1.514M	$182.0K	$432.0K
% Of Pretax Income		10.9%	17.78%
Net Earnings	-$3.985M	$1.488M	$1.998M
YoY Change	-189.23%	-25.53%	6.56%
Net Earnings / Revenue		1005.41%	1264.56%
Basic Earnings Per Share		$0.43	$0.57
Diluted Earnings Per Share	-$1.14	$0.43	$569.7K
COMMON SHARES
Basic Shares Outstanding	3.494M shares	3.497M shares	3.509M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2023 Q4	2023 Q3	2022 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$71.37M	$29.61M	$69.64M
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	$45.54M	$45.67M	$46.42M
YoY Change	-2.23%	-1.62%	32.65%
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	$975.3M	$1.031B	$1.043B
YoY Change	-4.75%	-1.14%	-2.19%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$1.019M	$2.900M	$2.215M
YoY Change	-65.56%	30.93%	-17.96%
Deferred Revenue
YoY Change
Short-Term Debt	$1.486M	$1.700M	$2.613M
YoY Change	-41.75%	-34.94%	-20.82%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$2.505M	$4.600M	$2.215M
YoY Change	-15.34%	107.67%	-17.96%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$0.00	$0.00	$0.00
YoY Change
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.505M	$4.600M	$2.215M
Total Long-Term Liabilities	$0.00	$0.00	$0.00
Total Liabilities	$898.7M	$969.3M	$982.8M
YoY Change	-5.97%	-1.37%	2.27%
SHAREHOLDERS EQUITY
Retained Earnings	$113.4M	$118.3M
YoY Change	-2.75%
Common Stock	$3.840M	$3.840M
YoY Change	0.1%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$76.51M	$61.50M	$59.79M
YoY Change
Total Liabilities & Shareholders Equity	$975.3M	$1.031B	$1.043B
YoY Change	-4.75%	-1.14%	-2.19%

Cashflow Statement

Concept	2023 Q4	2023 Q3	2022 Q3
OPERATING ACTIVITIES
Net Income	-$3.985M	$1.488M	$1.998M
YoY Change	-189.23%	-25.53%	6.56%
Depreciation, Depletion And Amortization	$420.0K	$420.0K	$467.0K
YoY Change	-2.33%	-10.06%	37.35%
Cash From Operating Activities	$1.212M	$3.310M	$4.548M
YoY Change	-46.23%	-27.22%	28.11%
INVESTING ACTIVITIES
Capital Expenditures	$248.0K	$130.0K	-$1.481M
YoY Change	-83.57%	-108.78%	-72.37%
Acquisitions
YoY Change
Other Investing Activities	$110.4M	-$15.47M	-$39.19M
YoY Change	-861.49%	-60.53%	79.37%
Cash From Investing Activities	$110.1M	-$15.60M	-$40.67M
YoY Change	-788.13%	-61.65%	49.48%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-69.55M	12.36M	-27.35M
YoY Change	142.89%	-145.19%	-191.79%
NET CHANGE
Cash From Operating Activities	1.212M	3.310M	4.548M
Cash From Investing Activities	110.1M	-15.60M	-40.67M
Cash From Financing Activities	-69.55M	12.36M	-27.35M
Net Change In Cash	41.77M	70.00K	-63.48M
YoY Change	-198.54%	-100.11%	-1133.83%
FREE CASH FLOW
Cash From Operating Activities	$1.212M	$3.310M	$4.548M
Capital Expenditures	$248.0K	$130.0K	-$1.481M
Free Cash Flow	$964.0K	$3.180M	$6.029M
YoY Change	29.4%	-47.25%	-32.33%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	39000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	208300000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	18000	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	16000	usd
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	8500000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	3957135	shares
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Small Business EntitySmallBusiness	true
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
	dei	Document Type DocumentType	10-Q
	dei	Document Period End Date DocumentPeriodEndDate	2023-09-30
	dei	Entity File Number EntityFileNumber	0-26486
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	63-0885779
	dei	Entity Address Address Line1 EntityAddressAddressLine1	100 N. Gay Street
	dei	Entity Address City Or Town EntityAddressCityOrTown	Auburn
	dei	Entity Address State Or Province EntityAddressStateOrProvince	AL
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	36830
	dei	City Area Code CityAreaCode	334
	dei	Local Phone Number LocalPhoneNumber	821-9200
	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01
	dei	Trading Symbol TradingSymbol	AUBN
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2023Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	3493614	shares
CY2023Q3	us-gaap	Cash And Due From Banks CashAndDueFromBanks	16350000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	29611000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	27254000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	5765000	usd
CY2023Q3	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	538832000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	498693000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	45666000	usd
CY2023Q3	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	17010000	usd
CY2023Q3	us-gaap	Other Assets OtherAssets	26319000	usd
CY2023Q3	us-gaap	Assets Assets	1030724000	usd
CY2023Q3	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	279458000	usd
CY2022Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	311371000	usd
CY2023Q3	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	685143000	usd
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	638966000	usd
CY2023Q3	us-gaap	Deposits Deposits	964601000	usd
CY2022Q4	us-gaap	Deposits Deposits	950337000	usd
CY2023Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	3801000	usd
CY2022Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	3797000	usd
CY2023Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	118326000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	116600000	usd
CY2023Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-49013000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-40920000	usd
CY2023Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	61451000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	68041000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-17223000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-9941000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-9941000	usd
CY2023Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.27
CY2023Q3	aubn	Cash Dividends Paid CashDividendsPaid	943000	usd
CY2023Q3	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	1000	usd
CY2023Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	61451000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-17256000	usd
CY2022Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.265
CY2022Q3	aubn	Cash Dividends Paid CashDividendsPaid	929000	usd
CY2022Q3	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	1000	usd
CY2022Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	59793000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	68041000	usd
CY2023Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	61451000	usd
CY2022Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	59793000	usd
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1278000	usd
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1098000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1834000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-2450000	usd
	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	81000	usd
	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	315000	usd
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	3417000	usd
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	8711000	usd
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	3482000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	15570000	usd
	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	2672000	usd
	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	14102000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	10693000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	8726000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	19377000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	usd
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	41025000	usd
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	15644000	usd
	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	170000	usd
	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	5540000	usd
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	164000	usd
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	74000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-74957000	usd
	us-gaap	Net Change Noninterest Bearing Deposits Domestic NetChangeNoninterestBearingDepositsDomestic	5570000	usd
	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	2833000	usd
	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	2791000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	10393000	usd
	us-gaap	Interest Paid Net InterestPaidNet	1705000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	800000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1031000	usd
CY2023Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	15363000	usd
CY2023Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	60112000	usd
CY2023Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	100984000	usd
CY2023Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	196827000	usd
CY2023Q3	aubn	Available For Sale Securities Gross Unrealized Gains2 AvailableForSaleSecuritiesGrossUnrealizedGains2	0	usd
CY2023Q3	aubn	Available For Sale Securities Gross Unrealized Losses AvailableForSaleSecuritiesGrossUnrealizedLosses	65450000	usd
CY2023Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	438736000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	5235000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	58518000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	112219000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	12810000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	758000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	359436000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	64692000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	372246000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	65450000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	171001000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	12179000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	230596000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	42474000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	401597000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	54653000	usd
CY2022Q4	aubn	Financing Receivable Recorded Investment Total Still Accruing FinancingReceivableRecordedInvestmentTotalStillAccruing	501727000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	2731000	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	16000	usd
CY2022Q3	aubn	Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries FinancingReceivableAllowanceForCreditLossesNetChargeoffsRecoveries	0	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	4966000	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	4966000	usd
CY2022Q4	aubn	Impaired Financing Receivable Charge Off And Payments Applied ImpairedFinancingReceivableChargeOffAndPaymentsApplied	-4000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	2559000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	505000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	173000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	0	usd
CY2022Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	1151000	usd
CY2021Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	1309000	usd
CY2023Q3	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	7000	usd
CY2022Q3	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	13000	usd
CY2023Q3	aubn	Servicing Asset At Amortized Value Amortization2 ServicingAssetAtAmortizedValueAmortization2	-46000	usd
CY2022Q3	aubn	Servicing Asset At Amortized Value Amortization2 ServicingAssetAtAmortizedValueAmortization2	-64000	usd
CY2023Q3	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	1011000	usd
CY2022Q3	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	1208000	usd
CY2023Q3	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	1011000	usd
CY2022Q3	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	1208000	usd
CY2022Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0	usd
CY2021Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0	usd
CY2023Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0	usd
CY2022Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0	usd
CY2023Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0	usd
CY2022Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0	usd
CY2022Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	2369000	usd
CY2021Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	1908000	usd
CY2023Q3	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	2351000	usd
CY2022Q3	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	2478000	usd
CY2023Q3	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	2351000	usd
CY2022Q3	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	2478000	usd
CY2023Q3	aubn	Percentage Of Loans Secured By Real Estate PercentageOfLoansSecuredByRealEstate	0.86	pure
	dei	Entity Central Index Key EntityCentralIndexKey	0000750574
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000	shares
CY2023Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q3	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	0	usd
CY2022Q3	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	0	usd
	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	0	usd
	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	0	usd
	dei	Entity Registrant Name EntityRegistrantName	Auburn National Bancorporation, Inc.
CY2022Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	11608000	usd
CY2023Q3	us-gaap	Federal Funds Sold FederalFundsSold	416000	usd
CY2022Q4	us-gaap	Federal Funds Sold FederalFundsSold	9300000	usd
CY2023Q3	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	12845000	usd
CY2022Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	6346000	usd
CY2023Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	373286000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	405304000	usd
CY2023Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	545610000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	504458000	usd
CY2023Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	6778000	usd
CY2023Q3	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	1741000	usd
CY2022Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	2551000	usd
CY2023Q3	us-gaap	Other Liabilities OtherLiabilities	2931000	usd
CY2022Q4	us-gaap	Other Liabilities OtherLiabilities	2959000	usd
CY2023Q3	us-gaap	Liabilities Liabilities	969273000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	955847000	usd
CY2023Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2023Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000	shares
CY2023Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	8500000	shares
CY2023Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	3957135	shares
CY2023Q3	us-gaap	Common Stock Value CommonStockValue	39000	usd
CY2023Q3	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	463521	shares
CY2022Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	453683	shares
CY2023Q3	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	11702000	usd
CY2022Q4	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	11475000	usd
CY2023Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1030724000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1023888000	usd
CY2023Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	6373000	usd
CY2022Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	5097000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	18146000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	14638000	usd
CY2023Q3	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	1783000	usd
CY2022Q3	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	1808000	usd
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	5474000	usd
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	4691000	usd
CY2023Q3	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	402000	usd
CY2022Q3	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	441000	usd
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	1209000	usd
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	1275000	usd
CY2023Q3	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	85000	usd
CY2022Q3	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	426000	usd
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	442000	usd
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	767000	usd
CY2023Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	8643000	usd
CY2022Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	7772000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	25271000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	21371000	usd
CY2023Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	2334000	usd
CY2022Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	524000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	4934000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	1661000	usd
CY2023Q3	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	37000	usd
CY2022Q3	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	5000	usd
	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	68000	usd
	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	15000	usd
CY2023Q3	us-gaap	Interest Expense InterestExpense	2371000	usd
CY2022Q3	us-gaap	Interest Expense InterestExpense	529000	usd
	us-gaap	Interest Expense InterestExpense	5002000	usd
	us-gaap	Interest Expense InterestExpense	1676000	usd
CY2023Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	6272000	usd
CY2022Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	7243000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	20269000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	19695000	usd
CY2023Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	105000	usd
CY2022Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	250000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-191000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	usd
CY2023Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	6167000	usd
CY2022Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	6993000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	20460000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	19695000	usd
CY2023Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	148000	usd
CY2022Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	158000	usd
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	456000	usd
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	446000	usd
CY2023Q3	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	110000	usd
CY2022Q3	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	126000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	345000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	566000	usd
CY2023Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	87000	usd
CY2022Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	97000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	311000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	293000	usd
CY2023Q3	us-gaap	Noninterest Income Other NoninterestIncomeOther	520000	usd
CY2022Q3	us-gaap	Noninterest Income Other NoninterestIncomeOther	427000	usd
	us-gaap	Noninterest Income Other NoninterestIncomeOther	1336000	usd
	us-gaap	Noninterest Income Other NoninterestIncomeOther	1259000	usd
CY2023Q3	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	0	usd
CY2022Q3	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	44000	usd
	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	44000	usd
CY2023Q3	us-gaap	Noninterest Income NoninterestIncome	865000	usd
CY2022Q3	us-gaap	Noninterest Income NoninterestIncome	852000	usd
	us-gaap	Noninterest Income NoninterestIncome	2448000	usd
	us-gaap	Noninterest Income NoninterestIncome	2608000	usd
CY2023Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	2844000	usd
CY2022Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	2975000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	8809000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	8901000	usd
CY2023Q3	us-gaap	Occupancy Net OccupancyNet	755000	usd
CY2022Q3	us-gaap	Occupancy Net OccupancyNet	794000	usd
	us-gaap	Occupancy Net OccupancyNet	2341000	usd
	us-gaap	Occupancy Net OccupancyNet	1955000	usd
CY2023Q3	us-gaap	Professional Fees ProfessionalFees	261000	usd
CY2022Q3	us-gaap	Professional Fees ProfessionalFees	235000	usd
	us-gaap	Professional Fees ProfessionalFees	898000	usd
	us-gaap	Professional Fees ProfessionalFees	704000	usd
CY2023Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1502000	usd
CY2022Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1411000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	4743000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	3814000	usd
CY2023Q3	us-gaap	Noninterest Expense NoninterestExpense	5362000	usd
CY2022Q3	us-gaap	Noninterest Expense NoninterestExpense	5415000	usd
	us-gaap	Noninterest Expense NoninterestExpense	16791000	usd
	us-gaap	Noninterest Expense NoninterestExpense	15374000	usd
CY2023Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1670000	usd
CY2022Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2430000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6117000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6929000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	182000	usd
CY2022Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	432000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	737000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1049000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	1488000	usd
CY2022Q3	us-gaap	Profit Loss ProfitLoss	1998000	usd
	us-gaap	Profit Loss ProfitLoss	5380000	usd
	us-gaap	Profit Loss ProfitLoss	5880000	usd
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.43
CY2022Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.57
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.54
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.67
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	3496411	shares
CY2022Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	3507318	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	3499518	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	3513068	shares
CY2023Q3	us-gaap	Profit Loss ProfitLoss	1488000	usd
CY2022Q3	us-gaap	Profit Loss ProfitLoss	1998000	usd
	us-gaap	Profit Loss ProfitLoss	5380000	usd
	us-gaap	Profit Loss ProfitLoss	5880000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-9941000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-8093000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-46533000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	33000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	33000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-17256000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-8093000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-46566000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-8453000	usd
CY2022Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-15258000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-2713000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-40686000	usd
CY2023Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	70976000	usd
CY2023Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	130000	usd
CY2022Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	76107000	usd
CY2022Q3	us-gaap	Profit Loss ProfitLoss	1998000	usd
CY2022Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	128000	usd
	aubn	Cumulative Effect Of Change In Accounting Standard CumulativeEffectOfChangeInAccountingStandard	-821000	usd
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.81
	aubn	Cash Dividends Paid CashDividendsPaid	2833000	usd
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	229000	usd
	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	6000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	103726000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-46566000	usd
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.795
	aubn	Cash Dividends Paid CashDividendsPaid	2791000	usd
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	460000	usd
	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	4000	usd
	us-gaap	Profit Loss ProfitLoss	5380000	usd
	us-gaap	Profit Loss ProfitLoss	5880000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-191000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	usd
	us-gaap	Gain Loss On Investments GainLossOnInvestments	0	usd
	us-gaap	Gain Loss On Investments GainLossOnInvestments	44000	usd
	aubn	Net Loss Gain On Other Real Estate NetLossGainOnOtherRealEstate	162000	usd
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	10292000	usd
	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	259000	usd
	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	294000	usd
	aubn	Income Recognized On Death Benefit Of Life Insurance IncomeRecognizedOnDeathBenefitOfLifeInsurance	52000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-47000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	38871000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	93106000	usd
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	216000	usd
	aubn	Proceeds From Surrender Of Bank Owned Life Insurance ProceedsFromSurrenderOfBankOwnedLifeInsurance	3037000	usd
	aubn	Proceeds From Surrender Of Bank Owned Life Insurance ProceedsFromSurrenderOfBankOwnedLifeInsurance	0	usd
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	536000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-18729000	usd
	us-gaap	Net Change Noninterest Bearing Deposits Domestic NetChangeNoninterestBearingDepositsDomestic	-32717000	usd
	us-gaap	Net Change Interest Bearing Deposits Domestic NetChangeInterestBearingDepositsDomestic	46982000	usd
	us-gaap	Net Change Interest Bearing Deposits Domestic NetChangeInterestBearingDepositsDomestic	-21875000	usd
	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-810000	usd
	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-835000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	229000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	460000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-20391000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	2357000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-86622000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	27254000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	156259000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	29611000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	69637000	usd
	us-gaap	Interest Paid Net InterestPaidNet	4384000	usd
	us-gaap	Nature Of Operations NatureOfOperations	<div id="TextBlockContainer3" style="position:relative;line-height:normal;width:663px;height:77px;"><div id="TextContainer3" style="position:relative;width:663px;z-index:1;"><div id="a3431" style="position:absolute;font-family:'Times New Roman';font-weight:bold;left:4px;top:0px;">General </div><div id="a3434" style="position:absolute;font-family:'Times New Roman';left:4px;top:31px;">Auburn National Bancorporation, Inc. (the “Company”) provides a full range of banking services<div style="display:inline-block;width:5px"> </div>to individuals and </div><div id="a3438" style="position:absolute;font-family:'Times New Roman';left:4px;top:46px;">commercial customers in Lee County,<div style="display:inline-block;width:5px"> </div>Alabama and surrounding areas through its wholly owned subsidiary,<div style="display:inline-block;width:6px"> </div>AuburnBank </div><div id="a3446" style="position:absolute;font-family:'Times New Roman';left:4px;top:61px;">(the “Bank”). The Company does not have any segments other than banking that are considered<div style="display:inline-block;width:5px"> </div>material.</div></div></div>
	us-gaap	Reclassifications Reclassifications	<div id="TextBlockContainer29" style="position:relative;line-height:normal;width:649px;height:58px;"><div id="TextContainer29" style="position:relative;width:649px;z-index:1;"><div id="a3628" style="position:absolute;font-family:'Times New Roman';font-weight:bold;left:4px;top:0px;">Reclassifications</div><div id="a3630" style="position:absolute;font-family:'Times New Roman';left:4px;top:27px;">Certain amounts reported in prior periods have been reclassified to conform to the current<div style="display:inline-block;width:1px"> </div>-period presentation. These </div><div id="a3634" style="position:absolute;font-family:'Times New Roman';left:4px;top:43px;">reclassifications had no material effect on the Company’s<div style="display:inline-block;width:5px"> </div>previously reported net earnings or total stockholders’ equity.</div></div></div>
CY2023Q1	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	1000000.0	usd
CY2023Q1	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	100000	usd
CY2023Q1	aubn	Cumulative Effect Of Change In Accounting Standard CumulativeEffectOfChangeInAccountingStandard	800000	usd
CY2023Q3	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	200000	usd
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.67
CY2023Q3	aubn	Loans Loans	-158000	usd
CY2022Q3	aubn	Loans Loans	-250000	usd
	aubn	Loans Loans	133000	usd
	aubn	Loans Loans	0	usd
CY2023Q3	aubn	Reserve For Unfunded Commitments ReserveForUnfundedCommitments	53000	usd
CY2022Q3	aubn	Reserve For Unfunded Commitments ReserveForUnfundedCommitments	-70000	usd
	aubn	Reserve For Unfunded Commitments ReserveForUnfundedCommitments	58000	usd
	aubn	Reserve For Unfunded Commitments ReserveForUnfundedCommitments	-35000	usd
CY2023Q3	aubn	Total Provision For Credit Losses TotalProvisionForCreditLosses	-105000	usd
CY2022Q3	aubn	Total Provision For Credit Losses TotalProvisionForCreditLosses	-320000	usd
	aubn	Total Provision For Credit Losses TotalProvisionForCreditLosses	191000	usd
	aubn	Total Provision For Credit Losses TotalProvisionForCreditLosses	-35000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	1488000	usd
CY2022Q3	us-gaap	Profit Loss ProfitLoss	1998000	usd
	us-gaap	Profit Loss ProfitLoss	5380000	usd
	us-gaap	Profit Loss ProfitLoss	5880000	usd
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	3496411	shares
CY2022Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	3507318	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	3499518	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	3513068	shares
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.43
CY2022Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.57
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.54
CY2023Q3	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	373286000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	229332000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	405304000	usd
CY2022Q4	aubn	Available For Sale Securities Gross Unrealized Gains2 AvailableForSaleSecuritiesGrossUnrealizedGains2	11000	usd
CY2022Q4	aubn	Available For Sale Securities Gross Unrealized Losses AvailableForSaleSecuritiesGrossUnrealizedLosses	54653000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	459946000	usd
CY2023Q3	aubn	Costmethodsecurtiesinvestmentcarryingamount Costmethodsecurtiesinvestmentcarryingamount	1400000	usd
CY2022Q4	aubn	Costmethodsecurtiesinvestmentcarryingamount Costmethodsecurtiesinvestmentcarryingamount	1200000	usd
CY2023Q3	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	0	usd
CY2022Q3	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	44000	usd
	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	0	usd
	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	44000	usd
CY2023Q3	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	usd
CY2022Q3	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	44000	usd
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	usd
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	44000	usd
CY2023Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	545610000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	504458000	usd
CY2023Q3	aubn	Financing Receivable Recorded Investment Total Still Accruing FinancingReceivableRecordedInvestmentTotalStillAccruing	544397000	usd
CY2023Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	1213000	usd
CY2023Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	545610000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	504458000	usd
CY2023Q3	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	124858000	usd
CY2023Q3	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	155913000	usd
CY2023Q3	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	85189000	usd
CY2023Q3	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	57044000	usd
CY2023Q3	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	39018000	usd
CY2023Q3	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	68517000	usd
CY2023Q3	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	15071000	usd
CY2023Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	545610000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff	34000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff	37000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff	37000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff	13000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff	13000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff	1000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	85000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	85000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	85000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	2731000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	504458000	usd
CY2023Q3	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	1213000	usd
CY2023Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	1213000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	2731000	usd
CY2023Q3	aubn	Financing Receivable Individually Evaluated Collateral Depedent Loans FinancingReceivableIndividuallyEvaluatedCollateralDepedentLoans	963000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	6634000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	4000	usd
CY2023Q3	aubn	Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries FinancingReceivableAllowanceForCreditLossesNetChargeoffsRecoveries	-14000	usd
CY2023Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	158000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	6778000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	5765000	usd
	aubn	Impact Of Adoption Of Asc326 ImpactOfAdoptionOfAsc326	1019000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	85000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	212000	usd
	aubn	Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries FinancingReceivableAllowanceForCreditLossesNetChargeoffsRecoveries	127000	usd
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-133000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	6778000	usd
CY2022Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	4716000	usd
CY2022Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	250000	usd
CY2023Q2	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	2312000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	4939000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	84000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	111000	usd
	aubn	Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries FinancingReceivableAllowanceForCreditLossesNetChargeoffsRecoveries	27000	usd
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	0	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	4966000	usd
CY2022Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	4966000	usd
CY2022Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	474467000	usd
CY2022Q3	aubn	Financing Receivable Individually Evaluated Collateral Depedent Loans FinancingReceivableIndividuallyEvaluatedCollateralDepedentLoans	170000	usd
CY2022Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	170000	usd
CY2022Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	4966000	usd
CY2022Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	474637000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	1068000	usd
CY2022Q4	aubn	Impaired Financing Receivable With No Related Allowance Charge Off And Payments Applied ImpairedFinancingReceivableWithNoRelatedAllowanceChargeOffAndPaymentsApplied	-4000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	1064000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	1495000	usd
CY2022Q4	aubn	Impaired Financing Receivable With Related Allowance Charge Off And Payments Applied ImpairedFinancingReceivableWithRelatedAllowanceChargeOffAndPaymentsApplied	0	usd
CY2022Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	1495000	usd
CY2022Q4	aubn	Impaired Financing Receivable With Related Allowance Related Allowance ImpairedFinancingReceivableWithRelatedAllowanceRelatedAllowance	505000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	2563000	usd
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	205000	usd
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	0	usd
CY2023Q2	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	1050000	usd
CY2022Q2	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	1259000	usd
	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	16000	usd
	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	110000	usd
	aubn	Servicing Asset At Amortized Value Amortization2 ServicingAssetAtAmortizedValueAmortization2	-156000	usd
	aubn	Servicing Asset At Amortized Value Amortization2 ServicingAssetAtAmortizedValueAmortization2	-211000	usd
CY2023Q2	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0	usd
CY2022Q2	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0	usd
CY2022Q2	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	2547000	usd

Files In Submission

Name	View Source	Status
0001193125-23-272449-index-headers.html	Edgar Link	pending
0001193125-23-272449-index.html	Edgar Link	pending
0001193125-23-272449.txt	Edgar Link	pending
0001193125-23-272449-xbrl.zip	Edgar Link	pending
aubn-20230930.xsd	Edgar Link	pending
d535627d10q.htm	Edgar Link	pending
d535627dex311.htm	Edgar Link	pending
d535627dex312.htm	Edgar Link	pending
d535627dex321.htm	Edgar Link	pending
d535627dex322.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
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R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
aubn-20230930_def.xml	Edgar Link	unprocessable
aubn-20230930_pre.xml	Edgar Link	unprocessable
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d535627d10q_htm.xml	Edgar Link	completed
R42.htm	Edgar Link	pending
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R5.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
aubn-20230930_cal.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable

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$AUBN
AUBURN NATIONAL BANCORPORATION, INC Stock $aubn

2023 Q4 Form 10-Q Financial Statement

#000119312523272449 Filed on November 07, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AUBN AUBURN NATIONAL BANCORPORATION, INC Stock $aubn

2023 Q4 Form 10-Q Financial Statement

#000119312523272449 Filed on November 07, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AUBN
AUBURN NATIONAL BANCORPORATION, INC Stock $aubn