XML 84 R71.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Loans - Past-due Status of Loans by Class (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | $ 1,647,649 | $ 1,476,761
90 Plus Days And Accruing | 32 | 1,505
30-59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 1,548 | 2,916
60-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 543 | 2,417
90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 2,254 | 4,389
All Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 4,345 | 9,722
Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 1,643,304 | 1,467,039
Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 576,198 | 442,121
90 Plus Days And Accruing | 0 | 0
Commercial | Real estate | 30-59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 249 | 139
Commercial | Real estate | 60-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 0 | 190
Commercial | Real estate | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 191 | 226
Commercial | Real estate | All Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 440 | 555
Commercial | Real estate | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 575,758 | 441,566
Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 79,365 | 56,565
90 Plus Days And Accruing | 0 | 0
Commercial | Construction | 30-59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 12 | 13
Commercial | Construction | 60-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 0 | 0
Commercial | Construction | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 12 | 80
Commercial | Construction | All Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 24 | 93
Commercial | Construction | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 79,341 | 56,472
Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 264,570 | 285,015
90 Plus Days And Accruing | 0 | 1,464
Commercial | Other | 30-59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 30 | 490
Commercial | Other | 60-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 23 | 62
Commercial | Other | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 104 | 2,082
Commercial | Other | All Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 157 | 2,634
Commercial | Other | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 264,413 | 282,381
Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 48,362 | 43,783
90 Plus Days And Accruing | 0 | 0
Municipal | 30-59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 0 | 0
Municipal | 60-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 0 | 0
Municipal | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 0 | 0
Municipal | All Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 0 | 0
Municipal | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 48,362 | 43,783
Residential | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 31,763 | 21,600
90 Plus Days And Accruing | 0 | 0
Residential | Construction | 30-59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 0 | 0
Residential | Construction | 60-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 0 | 0
Residential | Construction | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 0 | 0
Residential | Construction | All Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 0 | 0
Residential | Construction | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 31,763 | 21,600
Residential | Term |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 550,783 | 522,070
90 Plus Days And Accruing | 0 | 23
Residential | Term | 30-59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 348 | 540
Residential | Term | 60-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 169 | 1,799
Residential | Term | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 1,780 | 1,616
Residential | Term | All Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 2,297 | 3,955
Residential | Term | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 548,486 | 518,115
Home equity line of credit |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 73,632 | 79,750
90 Plus Days And Accruing | 0 | 0
Home equity line of credit | 30-59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 741 | 1,645
Home equity line of credit | 60-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 159 | 324
Home equity line of credit | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 135 | 367
Home equity line of credit | All Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 1,035 | 2,336
Home equity line of credit | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 72,597 | 77,414
Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 22,976 | 25,857
90 Plus Days And Accruing | 32 | 18
Consumer | 30-59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 168 | 89
Consumer | 60-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 192 | 42
Consumer | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 32 | 18
Consumer | All Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 392 | 149
Consumer | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | $ 22,584 | $ 25,708

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_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount excluding accrued interest, before allowance for credit loss, of financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 3B -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=124267575&loc=SL82922355-210448 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables30To59DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables60To89DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fnlc_MunicipalPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fnlc_HomeEquityLineOfCreditPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |