XML 66 R55.htm IDEA: XBRL DOCUMENT
v3.21.1

Allowance for Loan Losses - Activity by Class (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | $ 16,253 | $ 11,639 | $ 11,639
Charge offs | 279 | 255 | 1,661
Recoveries | 95 | 74 | 225
Provision (credit) | 525 | 400 | 6,050
Ending balance | 16,594 | 11,858 | 16,253
Ending balance specifically evaluated for impairment | 900 | 992 | 462
Ending balance collectively evaluated for impairment | 15,694 | 10,866 | 15,791
Ending balance | 1,516,772 | 1,344,208 | 1,476,761
Ending balance specifically evaluated for impairment | 16,340 | 22,493 | 16,039
Ending balance collectively evaluated for impairment | 1,500,432 | 1,321,715 | 1,460,722
Commercial | Real estate |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 5,178 | 3,742 | 3,742
Charge offs | 5 | 0 | 1,088
Recoveries | 65 | 0 | 0
Provision (credit) | 503 | 120 | 2,524
Ending balance | 5,741 | 3,862 | 5,178
Ending balance specifically evaluated for impairment | 174 | 230 | 112
Ending balance collectively evaluated for impairment | 5,567 | 3,632 | 5,066
Ending balance | 469,974 | 382,753 | 442,121
Ending balance specifically evaluated for impairment | 3,201 | 6,223 | 3,029
Ending balance collectively evaluated for impairment | 466,773 | 376,530 | 439,092
Commercial | Construction |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 662 | 365 | 365
Charge offs | 0 | 0 | 0
Recoveries | 0 | 0 | 0
Provision (credit) | (13) | 59 | 297
Ending balance | 649 | 424 | 662
Ending balance specifically evaluated for impairment | 21 | 3 | 18
Ending balance collectively evaluated for impairment | 628 | 421 | 644
Ending balance | 53,394 | 43,913 | 56,565
Ending balance specifically evaluated for impairment | 770 | 947 | 770
Ending balance collectively evaluated for impairment | 52,624 | 42,966 | 55,795
Commercial | Other |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 3,438 | 3,329 | 3,329
Charge offs | 142 | 0 | 27
Recoveries | 0 | 20 | 37
Provision (credit) | 784 | (922) | 99
Ending balance | 4,080 | 2,427 | 3,438
Ending balance specifically evaluated for impairment | 563 | 172 | 169
Ending balance collectively evaluated for impairment | 3,517 | 2,255 | 3,269
Ending balance | 297,488 | 237,896 | 285,015
Ending balance specifically evaluated for impairment | 2,220 | 990 | 1,779
Ending balance collectively evaluated for impairment | 295,268 | 236,906 | 283,236
Municipal |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 171 | 27 | 27
Charge offs | 0 | 0 | 0
Recoveries | 0 | 0 | 0
Provision (credit) | 14 | 2 | 144
Ending balance | 185 | 29 | 171
Ending balance specifically evaluated for impairment | 0 | 0 | 0
Ending balance collectively evaluated for impairment | 185 | 29 | 171
Ending balance | 49,476 | 43,537 | 43,783
Ending balance specifically evaluated for impairment | 0 | 0 | 0
Ending balance collectively evaluated for impairment | 49,476 | 43,537 | 43,783
Residential | Construction |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 102 | 25 | 25
Charge offs | 0 | 0 | 0
Recoveries | 0 | 0 | 0
Provision (credit) | 29 | 7 | 77
Ending balance | 131 | 32 | 102
Ending balance specifically evaluated for impairment | 0 | 0 | 0
Ending balance collectively evaluated for impairment | 131 | 32 | 102
Ending balance | 24,796 | 15,202 | 21,600
Ending balance specifically evaluated for impairment | 0 | 0 | 0
Ending balance collectively evaluated for impairment | 24,796 | 15,202 | 21,600
Residential | Term |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 2,579 | 1,024 | 1,024
Charge offs | 29 | 2 | 66
Recoveries | 6 | 10 | 34
Provision (credit) | 406 | 194 | 1,587
Ending balance | 2,962 | 1,226 | 2,579
Ending balance specifically evaluated for impairment | 142 | 233 | 163
Ending balance collectively evaluated for impairment | 2,820 | 993 | 2,416
Ending balance | 520,317 | 500,971 | 522,070
Ending balance specifically evaluated for impairment | 9,267 | 12,038 | 9,414
Ending balance collectively evaluated for impairment | 511,050 | 488,933 | 512,656
Home equity line of credit |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 1,211 | 1,078 | 1,078
Charge offs | 0 | 153 | 153
Recoveries | 1 | 1 | 22
Provision (credit) | (265) | 86 | 264
Ending balance | 947 | 1,012 | 1,211
Ending balance specifically evaluated for impairment | 0 | 296 | 0
Ending balance collectively evaluated for impairment | 947 | 716 | 1,211
Ending balance | 77,210 | 90,674 | 79,750
Ending balance specifically evaluated for impairment | 875 | 2,228 | 1,039
Ending balance collectively evaluated for impairment | 76,335 | 88,446 | 78,711
Consumer |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 778 | 867 | 867
Charge offs | 103 | 100 | 327
Recoveries | 23 | 43 | 132
Provision (credit) | 174 | (85) | 106
Ending balance | 872 | 725 | 778
Ending balance specifically evaluated for impairment | 0 | 58 | 0
Ending balance collectively evaluated for impairment | 872 | 667 | 778
Ending balance | 24,117 | 29,262 | 25,857
Ending balance specifically evaluated for impairment | 7 | 67 | 8
Ending balance collectively evaluated for impairment | 24,110 | 29,195 | 25,849
Unallocated |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 2,134 | 1,182 | 1,182
Charge offs | 0 | 0 | 0
Recoveries | 0 | 0 | 0
Provision (credit) | (1,107) | 939 | 952
Ending balance | 1,027 | 2,121 | 2,134
Ending balance specifically evaluated for impairment | 0 | 0 | 0
Ending balance collectively evaluated for impairment | 1,027 | 2,121 | 2,134
Ending balance | 0 | 0 | 0
Ending balance specifically evaluated for impairment | 0 | 0 | 0
Ending balance collectively evaluated for impairment | $ 0 | $ 0 | $ 0

X
- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_AllowanceForLoanAndLeaseLossesRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, before allowance for credit loss, of financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: 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=121599337&loc=SL82919230-210447 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=121647567&loc=SL82922355-210448 + Details
Name: | us-gaap_NotesReceivableGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of expense related to estimated loss from loan and lease transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_ProvisionForLoanAndLeaseLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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: |

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