XML 54 R41.htm IDEA: XBRL DOCUMENT v3.8.0.1

LOANS - Summary of Total Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	$ 2,428,862	$ 1,129,064
Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	1,359,516	1,129,064
Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	1,069,346	0
Commercial Real Estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	793,572	418,119
Commercial Real Estate: | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	489,539	418,119
Commercial Real Estate: | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	304,033	0
Commercial Real Estate: | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	49,285	14,695
Commercial Real Estate: | Construction and land development | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	33,692	14,695
Commercial Real Estate: | Construction and land development | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	15,593	0
Commercial Real Estate: | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	744,287	403,424
Commercial Real Estate: | Other commercial real estate | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	455,847	403,424
Commercial Real Estate: | Other commercial real estate | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	288,440	0
Commercial and Industrial:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	357,072	151,240
Commercial and Industrial: | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	243,445	151,240
Commercial and Industrial: | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	113,627	0
Commercial and Industrial: | Other Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	240,276	103,586
Commercial and Industrial: | Other Commercial | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	172,186	103,586
Commercial and Industrial: | Other Commercial | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	68,090	0
Commercial and Industrial: | Agricultural and other loans to farmers
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	30,483	31,808
Commercial and Industrial: | Agricultural and other loans to farmers | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	30,483	31,808
Commercial and Industrial: | Agricultural and other loans to farmers | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	0	0
Commercial and Industrial: | Tax exempt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	86,313	15,846
Commercial and Industrial: | Tax exempt | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	40,776	15,846
Commercial and Industrial: | Tax exempt | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	45,537	0
Total Commercial Loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	1,150,644	569,359
Total Commercial Loans: | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	732,984	569,359
Total Commercial Loans: | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	417,660	0
Residential Real Estate:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	1,152,628	506,612
Residential Real Estate: | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	568,277	506,612
Residential Real Estate: | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	584,351	0
Residential Real Estate: | Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	1,152,628	506,612
Residential Real Estate: | Residential mortgages | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	568,277	506,612
Residential Real Estate: | Residential mortgages | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	584,351	0
Consumer:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	125,590	53,093
Consumer: | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	58,255	53,093
Consumer: | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	67,335	0
Consumer: | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	115,305	46,921
Consumer: | Home equity | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	50,610	46,921
Consumer: | Home equity | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	64,695	0
Consumer: | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	10,285	6,172
Consumer: | Other consumer | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	7,645	6,172
Consumer: | Other consumer | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	$ 2,640	$ 0

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

No definition available.

+ Details

Name:	us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

+ Details

Name:	us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=bhb_LoansFromBusinessActivitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=bhb_LoansAcquiredFromBusinessCombinationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=bhb_OtherCommercialRealEstateLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=bhb_CommercialandIndustrialLoansPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=bhb_OtherCommercialLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=bhb_AgricultureAndOtherLoansToFarmersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=bhb_TaxExemptLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_RealEstateLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=bhb_OtherConsumerLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: