XML 41 R31.htm IDEA: XBRL DOCUMENT
v3.23.1

Loans Past Due Analysis (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2022
--- | --- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | $ 502,361 | $ 501,727 |
Non Accrual | 2,680 | 2,731 |
Loans and Leases Receivable, Gross, Carrying Amount | 505,041 | 504,458 | $ 428,931
Current [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 501,768 | 501,644 |
Accruing 30 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 593 | 83 |
Accruing Greater Than 90 days {Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Commercial and Industrial Loans [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 59,170 | 65,769 |
Non Accrual | 432 | 443 |
Loans and Leases Receivable, Gross, Carrying Amount | 59,602 | 66,212 | 73,297
Commercial and Industrial Loans [Member] | Current [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 59,141 | 65,764 |
Commercial and Industrial Loans [Member] | Accruing 30 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 29 | 5 |
Commercial and Industrial Loans [Member] | Accruing Greater Than 90 days {Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Construction And Land Development Loans [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 66,500 | 66,479 |
Loans and Leases Receivable, Gross, Carrying Amount | 66,500 | 66,479 | 33,058
Construction And Land Development Loans [Member] | Current [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 66,500 | 66,479 |
Construction And Land Development Loans [Member] | Accruing 30 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Construction And Land Development Loans [Member] | Accruing Greater Than 90 days {Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Commercial Real Estate Owner Occupied Loans [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 65,177 | 61,125 |
Non Accrual | 2,103 | 0 |
Loans and Leases Receivable, Gross, Carrying Amount | 67,280 | 61,125 |
Commercial Real Estate Owner Occupied Loans [Member] | Current [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 65,177 | 61,125 |
Commercial Real Estate Owner Occupied Loans [Member] | Accruing 30 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Commercial Real Estate Owner Occupied Loans [Member] | Accruing Greater Than 90 days {Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Commercial Real Estate Hotel Motel [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 32,959 | 33,378 |
Non Accrual | 0 | 0 |
Loans and Leases Receivable, Gross, Carrying Amount | 32,959 | 33,378 |
Commercial Real Estate Hotel Motel [Member] | Current [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 32,959 | 33,378 |
Commercial Real Estate Hotel Motel [Member] | Accruing 30 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Commercial Real Estate Hotel Motel [Member] | Accruing Greater Than 90 days {Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Commercial Real Estate Multifamily [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 40,974 | 41,084 |
Non Accrual | 0 | 0 |
Loans and Leases Receivable, Gross, Carrying Amount | 40,974 | 41,084 |
Commercial Real Estate Multifamily [Member] | Current [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 40,974 | 41,084 |
Commercial Real Estate Multifamily [Member] | Accruing 30 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Commercial Real Estate Multifamily [Member] | Accruing Greater Than 90 days {Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Commercial Real Estate Other Loans [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 126,749 | 126,870 |
Non Accrual | 0 | 2,116 |
Loans and Leases Receivable, Gross, Carrying Amount | 126,749 | 128,986 |
Commercial Real Estate Other Loans [Member] | Current [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 126,749 | 126,870 |
Commercial Real Estate Other Loans [Member] | Accruing 30 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Commercial Real Estate Other Loans [Member] | Accruing Greater Than 90 days {Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Commercial Real Estate Loans, Total [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 265,859 | 262,457 |
Non Accrual | 2,103 | 2,116 |
Loans and Leases Receivable, Gross, Carrying Amount | 267,962 | 264,573 | 235,062
Commercial Real Estate Loans, Total [Member] | Current [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 265,859 | 262,457 |
Commercial Real Estate Loans, Total [Member] | Accruing 30 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Commercial Real Estate Loans, Total [Member] | Accruing Greater Than 90 days {Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Residential Real Estate Consumer Mortgage Loans [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 48,378 | 45,198 |
Non Accrual | 135 | 172 |
Loans and Leases Receivable, Gross, Carrying Amount | 48,513 | 45,370 |
Residential Real Estate Consumer Mortgage Loans [Member] | Current [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 48,162 | 45,160 |
Residential Real Estate Consumer Mortgage Loans [Member] | Accruing 30 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 216 | 38 |
Residential Real Estate Consumer Mortgage Loans [Member] | Accruing Greater Than 90 days {Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Residential Real Estate Investment Property Loans [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 53,462 | 52,278 |
Non Accrual | 0 | 0 |
Loans and Leases Receivable, Gross, Carrying Amount | 53,462 | 52,278 |
Residential Real Estate Investment Property Loans [Member] | Current [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 53,184 | 52,278 |
Residential Real Estate Investment Property Loans [Member] | Accruing 30 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 278 | 0 |
Residential Real Estate Investment Property Loans [Member] | Accruing Greater Than 90 days {Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Residential Real Estate Loans, Total [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 101,840 | 97,476 |
Non Accrual | 135 | 172 |
Loans and Leases Receivable, Gross, Carrying Amount | 101,975 | 97,648 | 79,102
Residential Real Estate Loans, Total [Member] | Current [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 101,346 | 97,438 |
Residential Real Estate Loans, Total [Member] | Accruing 30 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 494 | 38 |
Residential Real Estate Loans, Total [Member] | Accruing Greater Than 90 days {Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 0 | 0 |
Consumer Installment and Revolving Loans [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 8,992 | 9,546 |
Non Accrual | 10 | 0 |
Loans and Leases Receivable, Gross, Carrying Amount | 9,002 | 9,546 | $ 8,412
Consumer Installment and Revolving Loans [Member] | Current [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 8,922 | 9,506 |
Consumer Installment and Revolving Loans [Member] | Accruing 30 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | 70 | 40 |
Consumer Installment and Revolving Loans [Member] | Accruing Greater Than 90 days {Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Accruing Loans | $ 0 | $ 0 |

X
- References No definition available. + Details
Name: | aubn_FinancingReceivableRecordedInvestmentTotalStillAccruing
Namespace Prefix: | aubn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (2) + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetNotPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables1To29DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=aubn_FinancialAssetMoreThan30DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_CommercialAndIndustrialLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_ConstructionAndLandDevelopmentLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_CommercialRealEstateOwnerOccupiedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_CommercialRealEstateHotelMotelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_CommercialRealEstateMultifamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_CommercialRealEstateOtherLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_CommercialRealEstateLoansTotalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_ResidentialRealEstateConsumerMortgageLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_ResidentialRealEstateInvestmentPropertyLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_ResidentialRealEstateLoansTotalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_ConsumerInstallmentAndRevolvingLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |