XML 45 R33.htm IDEA: XBRL DOCUMENT
v3.25.2

SECURITIES AVAILABLE FOR SALE - Allowance for Credit Losses on Available-for-Sale Debt Securities (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 USD ($) security | Mar. 31, 2025 USD ($) | Jun. 30, 2025 USD ($) security | Dec. 31, 2024 USD ($)
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items] |  |  |  |
Debt Securities, Available-for-sale, Allowance for Credit Loss, Beginning Balance | $ 1,204 | $ 568 | $ 568 |
Provision for credit losses on available-for-sale debt securities |  |  | 636 |
Charged-offs | (1,204) |  | (1,204) |
Debt Securities, Available-for-sale, Allowance for Credit Loss, Ending Balance |  | 1,204 |  |
Transfer of non-cash assets |  | 1,000 | 1,000 |
Corporate bond |  |  |  |
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items] |  |  |  |
Debt Securities, Available-for-sale, Allowance for Credit Loss, Beginning Balance | 1,204 | 568 | 568 |
Provision for credit losses on available-for-sale debt securities |  |  | 636 |
Charged-offs | $ (1,204) |  | $ (1,204) |
Debt Securities, Available-for-sale, Allowance for Credit Loss, Ending Balance |  | $ 1,204 |  |
Number of nonaccrual corporate bonds | security | 1 |  | 1 |
Nonaccrual securities available for sale | $ 8,000 |  | $ 8,000 | $ 9,000
Written down nonaccrual corporate bond |  |  | 5,600 |
Losses on securities available-for-sale |  |  | 4,400 |
Allowance charged off |  |  | $ 1,200 |
Debt Securities |  |  |  | $ 568

X
- Definition The total number of available for sale debt securities under non-accrual status as of the reporting date. + References No definition available. + Details
Name: | bhb_DebtSecuritiesAvailableForSaleExcludingAccruedInterestNonAccrualNumber
Namespace Prefix: | bhb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount excluding accrued interest, of investment in debt security measured at fair value (available-for-sale) on nonaccrual status. + References No definition available. + Details
Name: | bhb_DebtSecuritiesAvailableForSaleExcludingAccruedInterestNonaccrual
Namespace Prefix: | bhb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt security measured at fair value with changes in fair value recognized at other comprehensive income (available for sale) on nonaccrual status with related allowance for credit loss. + References No definition available. + Details
Name: | bhb_DebtSecuritiesAvailableForSaleExcludingAccruedInterestNonaccrualAllowanceForCreditLoss
Namespace Prefix: | bhb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount excluding accrued interest, of decrease in allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) from writeoff on nonaccrual status. + References No definition available. + Details
Name: | bhb_DebtSecuritiesAvailableForSaleExcludingAccruedInterestNonaccrualAllowanceForCreditLossWriteoff
Namespace Prefix: | bhb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of unrealized and realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) on nonaccrual status. + References No definition available. + Details
Name: | bhb_DebtSecuritiesAvailableForSaleGainLossNonaccrual
Namespace Prefix: | bhb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of transfers into financing receivable non-cash asset. + References No definition available. + Details
Name: | bhb_TransfersIntoFinancingReceivableNonCashAsset
Namespace Prefix: | bhb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount excluding accrued interest, of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479130/326-30-45-1 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of credit loss expense (reversal of expense) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) with previously recorded allowance and not intended to be sold and not more likely than not will be required to sell before recovery of amortized cost basis. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-9 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476148/220-40-50-22 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) from writeoff. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-9 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-9 + Details
Name: | us-gaap_DebtSecuritiesAvailableforsaleAllowanceForCreditLossLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, excluding accrued interest, of credit loss expense on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) transferred into available-for-sale out of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 8B -Publisher FASB -URI https://asc.fasb.org/1943274/2147481830/320-10-45-8B + Details
Name: | us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestTransferToAvailableForSaleAllowanceForCreditLossExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CorporateBondSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |