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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Unamortized Net Costs and Premiums (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |
Net Unamortized loan origination costs | $ 3,014 | $ 1,660
Net unamortized fair value discount on acquired loans | (4,758) | (7,032)
Total | $ (1,744) | $ (5,372)

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- Definition The amount of unamortized fair value discount on acquired loans. + References No definition available. + Details
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- Definition Unamortized Loan Commitment And Origination Fees. + References No definition available. + Details
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Namespace Prefix: | bhb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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- Definition Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6378536&loc=d3e10092-111533 + Details
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