XML 15 R30.htm IDEA: XBRL DOCUMENT
v3.20.1

Loan Credit Quality Analysis (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019
--- | --- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |  |
Financing Receivable, Recorded Investment, Pass | $ 433,987 | $ 450,911 |
Financing Receivable, Recorded Investment, Special Mention | 5,877 | 5,913 |
Financing Receivable Recorded Investment, Substandard Accruing | 4,302 | 4,371 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 116 | 187 |
Loans and Leases Receivable, Gross, Carrying Amount | 444,282 | 461,382 | $ 473,173
Commercial and Industrial Loans [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Financing Receivable, Recorded Investment, Pass | 53,875 | 54,340 |
Financing Receivable, Recorded Investment, Special Mention | 2,326 | 2,176 |
Financing Receivable Recorded Investment, Substandard Accruing | 246 | 266 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 0 | 0 |
Loans and Leases Receivable, Gross, Carrying Amount | 56,447 | 56,782 | 50,898
Construction And Land Development Loans [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Financing Receivable, Recorded Investment, Pass | 31,392 | 31,798 |
Financing Receivable, Recorded Investment, Special Mention | 0 | 0 |
Financing Receivable Recorded Investment, Substandard Accruing | 910 | 1,043 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 0 | 0 |
Loans and Leases Receivable, Gross, Carrying Amount | 32,302 | 32,841 | 44,931
Commercial Real Estate Owner Occupied Loans [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Financing Receivable, Recorded Investment, Pass | 47,646 | 47,865 |
Financing Receivable, Recorded Investment, Special Mention | 910 | 917 |
Financing Receivable Recorded Investment, Substandard Accruing | 149 | 78 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 0 | 0 |
Loans and Leases Receivable, Gross, Carrying Amount | 48,705 | 48,860 |
Commercial Real Estate Hotel Motel [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Financing Receivable, Recorded Investment, Pass | 43,249 | 43,719 |
Financing Receivable, Recorded Investment, Special Mention | 0 | 0 |
Financing Receivable Recorded Investment, Substandard Accruing | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 0 | 0 |
Loans and Leases Receivable, Gross, Carrying Amount | 43,249 | 43,719 |
Commercial Real Estate Multifamily [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Financing Receivable, Recorded Investment, Pass | 33,190 | 44,839 |
Financing Receivable, Recorded Investment, Special Mention | 0 | 0 |
Financing Receivable Recorded Investment, Substandard Accruing | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 0 | 0 |
Loans and Leases Receivable, Gross, Carrying Amount | 33,190 | 44,839 |
Commercial Real Estate Other Loans [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Financing Receivable, Recorded Investment, Pass | 130,088 | 132,030 |
Financing Receivable, Recorded Investment, Special Mention | 846 | 849 |
Financing Receivable Recorded Investment, Substandard Accruing | 21 | 21 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 0 | 0 |
Loans and Leases Receivable, Gross, Carrying Amount | 130,955 | 132,900 |
Commercial Real Estate Loans, Total [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Financing Receivable, Recorded Investment, Pass | 254,173 | 268,453 |
Financing Receivable, Recorded Investment, Special Mention | 1,756 | 1,766 |
Financing Receivable Recorded Investment, Substandard Accruing | 170 | 99 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 0 | 0 |
Loans and Leases Receivable, Gross, Carrying Amount | 256,099 | 270,318 | 265,149
Residential Real Estate Consumer Mortgage Loans [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Financing Receivable, Recorded Investment, Pass | 41,666 | 45,247 |
Financing Receivable, Recorded Investment, Special Mention | 1,223 | 962 |
Financing Receivable Recorded Investment, Substandard Accruing | 2,547 | 2,527 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 112 | 187 |
Loans and Leases Receivable, Gross, Carrying Amount | 45,548 | 48,923 |
Residential Real Estate Investment Property Loans [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Financing Receivable, Recorded Investment, Pass | 44,582 | 42,331 |
Financing Receivable, Recorded Investment, Special Mention | 514 | 949 |
Financing Receivable Recorded Investment, Substandard Accruing | 366 | 372 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 0 | 0 |
Loans and Leases Receivable, Gross, Carrying Amount | 45,462 | 43,652 |
Residential Real Estate Loans, Total [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Financing Receivable, Recorded Investment, Pass | 86,248 | 87,578 |
Financing Receivable, Recorded Investment, Special Mention | 1,737 | 1,911 |
Financing Receivable Recorded Investment, Substandard Accruing | 2,913 | 2,899 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 112 | 187 |
Loans and Leases Receivable, Gross, Carrying Amount | 91,010 | 92,575 | 103,631
Consumer Installment and Revolving Loans [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Financing Receivable, Recorded Investment, Pass | 8,299 | 8,742 |
Financing Receivable, Recorded Investment, Special Mention | 58 | 60 |
Financing Receivable Recorded Investment, Substandard Accruing | 63 | 64 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 4 | 0 |
Loans and Leases Receivable, Gross, Carrying Amount | $ 8,424 | $ 8,866 | $ 8,564

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

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

X
- References No definition available. + Details
Name: | aubn_FinancingReceivableRecordedInvestmentSubstandardAccruing
Namespace Prefix: | aubn_
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_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of financing receivable on nonaccrual status. + 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 http://asc.fasb.org/extlink&oid=118936363&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 http://asc.fasb.org/extlink&oid=119407570&loc=SL82919258-210447 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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 http://asc.fasb.org/extlink&oid=118952595&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_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: |