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DEPOSITS (Details) - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016
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Deposits [Abstract] |  |
Time less than $100,000 | $ 526,688 | $ 304,393
Time $100,000 or more | 194,211 | 112,044
Total time deposits | 720,899 | 416,437
Brokered time deposits | 322,100 | 237,900
Reciprocal deposits | $ 43,400 | $ 43,100

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- Definition Represents the amount of time deposits placed by or through the assistance of a deposit broker, also known as brokered deposit liabilities. + References No definition available. + Details
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Namespace Prefix: | bhb_
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Balance Type: | credit
Period Type: | instant

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- Definition Represents the reciprocal deposits. + References No definition available. + Details
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Namespace Prefix: | bhb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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- Definition Amount of time deposit liabilities, including certificates of deposit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=50488274&loc=d3e64164-112818 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Industry Guide -Number 3 -Section V -Paragraph D-E + Details
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- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Industry Guide -Number 3 -Section V -Paragraph D-E + Details
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- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of less than $100,000. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Industry Guide -Number 3 -Section V -Paragraph D-E + Details
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