XML 93 R5.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Consolidated Statements of Income (Audited) (Parenthetical) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Income Statement [Abstract] |  |  |
Interest and fees on loans (tax-exempt income) | $ 592 fnlc_InterestIncomeAndFeesOnLoansTaxExempt | $ 567 fnlc_InterestIncomeAndFeesOnLoansTaxExempt | $ 629 fnlc_InterestIncomeAndFeesOnLoansTaxExempt
Interest and dividends on investments (tax-exempt income) | $ 5,854 us-gaap_InterestIncomeSecuritiesTaxExempt | $ 6,065 us-gaap_InterestIncomeSecuritiesTaxExempt | $ 5,175 us-gaap_InterestIncomeSecuritiesTaxExempt

X
- Definition Interest income and fees derived from loans which are exempt from federal income taxes. + References No definition available. + Details
Name: | fnlc_InterestIncomeAndFeesOnLoansTaxExempt
Namespace Prefix: | fnlc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeStatementAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities exempt from state, federal and other income tax. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.2) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 2 -Article 9 + Details
Name: | us-gaap_InterestIncomeSecuritiesTaxExempt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration