XML 20 R43.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Certificates of Deposit (Details) (USD $) | Mar. 31, 2012 | Dec. 31, 2011 | Mar. 31, 2011
--- | --- | --- | ---
Certificates of deposit by balance [Abstract] |  |  |
Certificates of deposit less than $100,000 | $ 248,582,000 | $ 216,836,000 | $ 308,127,000
Certificates $100,000 to $250,000 | 349,643,000 | 309,841,000 | 337,018,000
Certificates $250,000 and over | 32,548,000 | 22,499,000 | 35,440,000
Total certificates of deposit | $ 630,773,000 | $ 549,176,000 | $ 680,585,000

X
- Definition The aggregate amount of domestic or foreign time deposits (including certificates of deposits, individual retirement accounts and open accounts) that total to more than $250,000. + References No definition available. + Details
Name: | fnlc_TimeDeposits250000OrMore
Namespace Prefix: | fnlc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The aggregate amount of domestic or foreign time deposits (including certificates of deposits, individual retirement accounts and open accounts) that total to more than $100,000 but less than $250,000. + References No definition available. + Details
Name: | fnlc_TimeDepositsGreaterThan100000AndLessThan250000
Namespace Prefix: | fnlc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The aggregate amount of time deposits, including certificates of deposits, individual retirement accounts and open accounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_TimeDeposits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition The aggregate amount of domestic or foreign time deposits (including certificates of deposits, individual retirement accounts and open accounts) that total to less than $100,000. + References No definition available. + Details
Name: | us-gaap_TimeDepositsLessThan100000
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant