XML 55 R45.htm IDEA: XBRL DOCUMENT v3.23.3

Loans - Loan Portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 2,079,860	$ 1,914,674	$ 1,857,975
Percentage of loans receivable, by type	100.00%	100.00%	100.00%
Commercial | Real estate owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 299,943	$ 256,623	$ 251,410
Percentage of loans receivable, by type	14.40%	13.40%	13.60%
Commercial | Real estate non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 397,024	$ 363,660	$ 315,514
Percentage of loans receivable, by type	19.10%	19.00%	17.00%
Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 72,424	$ 93,907	$ 129,036
Percentage of loans receivable, by type	3.50%	4.90%	6.90%
Commercial | C&I
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 350,596	$ 319,359	$ 310,110
Percentage of loans receivable, by type	16.90%	16.70%	16.70%
Commercial | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 91,041	$ 79,057	$ 71,784
Percentage of loans receivable, by type	4.40%	4.10%	3.90%
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 58,447	$ 40,619	$ 48,702
Percentage of loans receivable, by type	2.80%	2.10%	2.60%
Residential | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 28,986	$ 49,907	$ 41,631
Percentage of loans receivable, by type	1.40%	2.60%	2.20%
Residential | Term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 660,049	$ 597,404	$ 581,066
Percentage of loans receivable, by type	31.70%	31.20%	31.30%
Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 101,980	$ 93,075	$ 87,903
Percentage of loans receivable, by type	4.90%	4.90%	4.70%
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 19,370	$ 21,063	$ 20,819
Percentage of loans receivable, by type	0.90%	1.10%	1.10%

X

- Definition

Reflects the break down of the gross carrying amount of all categories of loans and leases held in the portfolio, after deducting deferred income, but before deducting the allowance for losses on loans and leases as a percentage of total portfolio.

+ References

No definition available.

+ Details

Name:	fnlc_PercentageOfFinancingReceivableByType
Namespace Prefix:	fnlc_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
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_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-5

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

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

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fnlc_RealEstateLoanOwnerOccupiedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fnlc_RealEstateLoanNonOwnerOccupiedMember
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_CommercialAndIndustrialLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=srt_MultifamilyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=fnlc_MunicipalPortfolioSegmentMember
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: