Statement of Comprehensive Income [Abstract]
Net income
Net Income (Loss) Attributable to Parent
Other comprehensive (loss) income, before tax:
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent [Abstract]
Changes in unrealized loss on securities available for sale
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, before Tax
Changes in unrealized loss on derivative hedges
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax
Changes in unrealized loss on pension
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax
Income taxes related to other comprehensive (loss) income :
Other Comprehensive Income (Loss), Tax, Parenthetical Disclosures [Abstract]
Changes in unrealized loss on securities available for sale
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax
Changes in unrealized loss on derivative hedges
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax
Changes in unrealized loss on pension
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax
Total other comprehensive (loss) income
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Total comprehensive income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Receivables [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table]
Receivable Type [Axis]
Receivable Type [Axis]
Receivable [Domain]
Receivable [Domain]
Business Activities Loans
Loans From Business Activities [Member]
Represents information pertaining to the loans from business activities.
Acquired Loans
Loans Acquired From Business Combinations [Member]
Represents information pertaining to the loans acquired from business combinations.
Financing Receivable Portfolio Segment [Axis]
Financing Receivable Portfolio Segment [Axis]
Financing Receivable Portfolio Segment [Domain]
Financing Receivable Portfolio Segment [Domain]
Commercial real estate
Commercial Real Estate Portfolio Segment [Member]
Commercial and industrial
Commercial and Industrial Loans Portfolio Segment [Member]
Commercial and Industrial Loans Portfolio Segment [Member]
Residential real estate
Residential Portfolio Segment [Member]
Consumer
Consumer Portfolio Segment [Member]
Class of Financing Receivable, Type [Axis]
Class of Financing Receivable, Type [Axis]
Class of Financing Receivable, Type [Domain]
Class of Financing Receivable, Type [Domain]
Construction and land development
Construction Loans [Member]
Other commercial real estate
Other Commercial Real Estate Loans [Member]
Other Commercial Real Estate Loans [Member]
Other Commercial
Other Commercial Loan [Member]
Other Commercial Loan [Member]
Agricultural
Agriculture And Other Loans To Farmers [Member]
Agriculture and other loans to farmers [member]
Tax exempt
Tax Exempt Loans [Member]
Tax Exempt Loans [Member]
Residential mortgages
Real Estate Loan [Member]
Home equity
Home Equity Loan [Member]
Other consumer
Other Consumer Loans [Member]
Other Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment
Cash basis interest income recognized, with no related allowance
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method
Recorded investment, with related allowance
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment
Cash basis interest income recognized, with related allowance
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method
Average Recorded Investment
Impaired Financing Receivable, Average Recorded Investment
Interest Income Recognized
Impaired Financing Receivable, Interest Income, Cash Basis Method
Schedule of Financing Receivables Past Due [Table]
Schedule of Financing Receivables Past Due [Table]
Total commercial real estate
Total commercial loans
Commercial Portfolio Segment [Member]
Residential Real Estate
Financing Receivables, Period Past Due [Axis]
Financing Receivables, Period Past Due [Axis]
Financing Receivables, Period Past Due [Domain]
Financing Receivables, Period Past Due [Domain]
30-59 Days Past Due
Financing Receivables, 30 to 59 Days Past Due [Member]
60-89 Days Past Due
Financing Receivables, 60 to 89 Days Past Due [Member]
90 Days or Greater Past Due
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due
Financing Receivable, Recorded Investment, Past Due
Current
Financing Receivable, Recorded Investment, Current
Acquired Credit Impaired
All Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Not Accounted for Using Income Recognition Model
Total loans
Loans and Leases Receivable, Net of Deferred Income
Past Due 90 days and Accruing
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Advances from the FHLB
Federal Home Loan Bank Certificates and Obligations (FHLB) [Member]
Federal Reserve Bank Advances
Federal Reserve Bank Advances [Member]
Federal Home Loan Bank Certificates and Obligations FHLB Callable Advances
Federal Home Loan Bank Certificates And Obligations F H L B Callable Advances [Member]
Represents information pertaining to federal home loan bank (FHLB) callable advances.
Federal Home Loan Bank Certificates and Obligations FHLB Amortizing Advances
Federal Home Loan Bank Certificates And Obligations F H L B Amortizing Advances [Member]
Represents information pertaining to federal home loan bank (FHLB) amortizing advances.
Subordinated borrowings
Private Placement Subordinated Notes [Member]
Represents information pertaining to the private placement fixed and floating rate junior subordinated notes.
Variable Rate [Axis]
Variable Rate [Axis]
Variable Rate [Domain]
Variable Rate [Domain]
LIBOR
London Interbank Offered Rate (LIBOR) [Member]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Subordinated debt
Subordinated Debt [Member]
Guarantor Obligations, Nature [Axis]
Guarantor Obligations, Nature [Axis]
Guarantor Obligations, Nature [Domain]
Guarantor Obligations, Nature [Domain]
Financial Guarantee
Financial Guarantee [Member]
Ownership [Axis]
Ownership [Axis]
Ownership [Domain]
Ownership [Domain]
NHTB Capital Trust II and NHTB Capital Trust III
NHTB Capital Trust II and NHTB Capital Trust III [Member]
NHTB Capital Trust II and NHTB Capital Trust III [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Secured line of credit maintained
Line of Credit Facility, Maximum Borrowing Capacity
Short-term line of credit outstanding
Line of Credit, Current
Short-term debt
Short-term Debt
Advances outstanding
Long-term Debt
Maturity period
Debt Instrument, Term
Principal amount of debt issued
Debt Instrument, Face Amount
Earliest callable period without penalties
Debt Instrument, Call Date, Earliest Period
Debt Instrument, Call Date, Earliest Period
Interest rate margin
Debt Instrument, Basis Spread on Variable Rate
Effective interest rate
Debt Instrument, Interest Rate, Effective Percentage
Fixed interest rate
Debt Instrument, Interest Rate, Stated Percentage
Debentures issued by variable interest entities
Guarantor Obligations, Current Carrying Value
Deposits [Abstract]
Within 1 year
Time Deposit Maturities, Next Twelve Months
Over 1 year to 2 years
Time Deposit Maturities, Year Two
Over 2 years to 3 years
Time Deposit Maturities, Year Three
Over 3 years to 4 years
Time Deposit Maturities, Year Four
Over 4 years to 5 years
Time Deposit Maturities, Year Five
Over 5 years
Time Deposit Maturities, after Year Five
Total time deposits
Time Deposits
Investments, Debt and Equity Securities [Abstract]
Schedule of Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table]
Schedule of Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table]
Debt Security Category [Axis]
Debt Security Category [Axis]
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain]
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain]
Available-for-sale Securities
Available-for-sale Securities [Member]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Estimated credit losses as of prior year-end
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held
Reductions for securities paid off during the period
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold
Estimated credit losses at end of the period
Earnings Per Share [Abstract]
Schedule of Earnings Per Share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Other borrowings
Other Borrowings [Member]
Represents information pertaining to other borrowings, which are not otherwise provided in the taxonomy.
Junior subordinated borrowings
Junior Subordinated Debt [Member]
Short-term borrowings
Short-term Debt [Abstract]
Carrying Value
Weighted Average Rate
Short-term Debt, Weighted Average Interest Rate, at Point in Time
Long-term borrowings
Long-term Debt, Excluding Current Maturities [Abstract]
Carrying Value
Weighted Average Rate
Long-term Debt, Weighted Average Interest Rate, at Point in Time
Total borrowings
Debt and Capital Lease Obligations
Weighted Average Rate
Debt, Weighted Average Interest Rate
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at beginning of period
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield
Acquisitions
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Additions
Reclassification from nonaccretable difference for loans with improved cash flows
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications from Nonaccretable Difference
Accretion
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion
Balance at end of period
Summary of securities available for sale
Marketable Securities [Table Text Block]
Schedule of amortized cost and estimated fair value of available for sale (AFS) securities, segregated by contractual maturity
Investments Classified by Contractual Maturity Date [Table Text Block]
Schedule of securities with unrealized losses, segregated by the duration of their continuous unrealized loss positions
Schedule of Unrealized Loss on Investments [Table Text Block]
Schedule of other than temporary impairment losses
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]
Fair Value Disclosures [Abstract]
Fair Value Measurement Inputs and Valuation Techniques [Table]
Fair Value Measurement Inputs and Valuation Techniques [Table]
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurement Frequency [Domain]
Non-recurring
Fair Value, Measurements, Nonrecurring [Member]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV [Domain]
Level 3
Fair Value, Inputs, Level 3 [Member]
Asset Class [Axis]
Asset Class [Axis]
Asset Class [Domain]
Asset Class [Domain]
Impaired loans
Impaired Loans [Member]
Represents the details pertaining to impaired loans.
Capitalized servicing rights
Capitalized Mortgage Servicing Rights [Member]
Represents the details pertaining to capitalized mortgage servicing rights.
Other real estate owned
Other Real Estate Owned [Member]
Represents the details pertaining to other real estate owned.
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets
Assets, Fair Value Disclosure [Abstract]
Impaired loans
Impaired Loans, Fair Value Disclosure
Represents the amount of impaired loans assets reported on the balance sheet at period end measured at fair value by the entity.
Capitalized servicing rights
Servicing Asset at Fair Value, Amount
Other real estate owned
Real Estate Acquired Through Foreclosure
Total
Assets, Fair Value Disclosure
Total Gains (Losses)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings
Schedule of Loans
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Schedule of Activity in the Accretable Yield for the Acquired Loan Portfolio that Falls Under the Review of ASC 310-30, Accounting for Certain Loans or Debt Securities Acquired in a Transfer
Schedule of Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Accretable Yield Movement [Table Text Block]
Tabular disclosure of changes in accretable yield for purchased credit impaired finance receivables by way of additions, accretion, reclassifications and disposals during the period.
Summary of Past Due Loans
Past Due Financing Receivables [Table Text Block]
Summary of Information Pertaining to Non-Accrual Loans
Schedule of Financing Receivables, Non Accrual Status [Table Text Block]
Schedule of Loans Evaluated for Impairment
Schedule Of Loans Evaluated For Impairment [Table Text Block]
Tabular disclosure related to loans evaluated for impairment.
Summary of Impaired Loans
Impaired Financing Receivables [Table Text Block]
Summary of the Average Recorded Investment and Interest Income Recognized on Impaired Loans
Impaired Financing Receivables Average Balances and Related Interest Income Recognized [Table Text Block]
Tabular disclosure of average recorded investment in impaired loans and related interest income recognized for the periods indicated.
Schedule of Recorded Investment and Number of Modifications for TDRs Identified During the Period
Troubled Debt Restructurings on Financing Receivables [Table Text Block]
Schedule of Impaired Financing Receivable [Table]
Schedule of Impaired Financing Receivable [Table]
Impaired loans
Financing Receivable, Impaired [Line Items]
Recorded Investment
Impaired Financing Receivable, Recorded Investment [Abstract]
With no related allowance:
Impaired Financing Receivable, with No Related Allowance, Recorded Investment
With an allowance recorded:
Impaired Financing Receivable, with Related Allowance, Recorded Investment
Total
Impaired Financing Receivable, Recorded Investment
Unpaid Principal Balance
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
With no related allowance:
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance
With an allowance recorded:
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance
Total
Impaired Financing Receivable, Unpaid Principal Balance
Related Allowance
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
With an allowance recorded:
Impaired Financing Receivable, Related Allowance
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Recurring
Fair Value, Measurements, Recurring [Member]
Level 1
Fair Value, Inputs, Level 1 [Member]
Level 2
Fair Value, Inputs, Level 2 [Member]
Measurement Basis [Axis]
Measurement Basis [Axis]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Portion at Fair Value Measurement [Member]
Portion at Fair Value Measurement [Member]
Total Fair Value
Estimate of Fair Value Measurement [Member]
Financial Instrument [Axis]
Financial Instrument [Axis]
Financial Instruments [Domain]
Financial Instruments [Domain]
US Government agency
Mortgage Backed Securities Issued By Us Government Agency [Member]
Debt securities collateralized by real estate mortgage loans (mortgages), issued by US Government Agency.
Private label
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Obligations of states and political subdivisions thereof
US States and Political Subdivisions Debt Securities [Member]
Corporate bonds
Corporate Bond Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value
Debt Securities, Available-for-sale
Derivative assets
Derivative Asset, Fair Value, Gross Asset
Derivative liabilities
Derivative Liability, Fair Value, Gross Liability
Specific reserve for loans individually evaluated, loan relationships with an aggregate balance (in excess)
Allowance for Loan and Lease Loss, Minimum Aggregate Balance, Individually Evaluated for Specific Reserve
Allowance for Loan and Lease Loss, Minimum Aggregate Balance, Individually Evaluated for Specific Reserve
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION
Business Description and Basis of Presentation [Text Block]
Summary of Financial Assets and Financial Liabilities Measured at Fair Value on a Recurring Basis Segregated by the Level of the Valuation Inputs Within the Fair Value Hierarchy Utilized to Measure Fair Value
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Schedule of Changes in Level 3 Assets and Liabilities That Were Measured at Fair Value on a Recurring Basis
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Table Text Block]
Tabular disclosure of the fair value measurement of assets and liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset and liabilities.
Summary of Applicable Non-Recurring Fair Value Measurements
Fair Value Measurements, Nonrecurring [Table Text Block]
Schedule of Quantitative Information About the Significant Unobservable Inputs Within Level 3
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
Summary of Estimated Fair Values, and Related Carrying Amounts, of Financial Instruments
Fair Value, by Balance Sheet Grouping [Table Text Block]
Revenue from Contract with Customer [Abstract]
NON-INTEREST INCOME
Revenue from Contract with Customer [Text Block]
Schedule of Borrowed Funds
Schedule of Debt [Table Text Block]
Summary of Maturities of FHLBB Advances
Schedule of Maturities and Weighted Average Interest Rates of Federal Home Loan Bank Advances [Table Text Block]
Tabular disclosure of the contractual maturities and weighted average interest rates on borrowings or advances from Federal Home Loan Bank.
Available for sale, Amortized Cost
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost, Rolling Maturity [Abstract]
Within 1 year
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost
Over 1 year to 5 years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost
Over 5 years to 10 years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Amortized Cost
Over 10 years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost
Total bonds and obligations
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost
Mortgage-backed securities
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost
Amortized Cost
Debt Securities, Available-for-sale, Amortized Cost
Available for sale, Fair Value
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling Maturity, Fair Value [Abstract]
Within 1 year
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value
Over 1 year to 5 years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value
Over 5 years to 10 years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value
Over 10 years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value
Total bonds and obligations
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value
Mortgage-backed securities
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value
Total securities available for sale
Mortgages
Mortgages [Member]
Loans
Acquired credit impaired
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net
Certain loans acquired in transfer not accounted for as debt securities, note balance, net
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Note Balance, Net
Represents the note balance amount of loans, considered impaired, at the time of acquisition.
Financing receivable not considered impaired at time of acquisition
Financing Receivable Not Considered Impaired at Time of Acquisition
Represents the carrying amount of loans, not considered impaired, at the time of acquisition.
Borrower's sustained repayment performance period
Troubled Debt Restructuring, Sustained Repayment Period of Borrower to Consider Return to Performing Status
Represents the reasonable period of a borrower's sustained repayment performance for consideration of returning the loan to performing status.
Foreclosed property
Repossessed Assets
Process of foreclosure
Securities Received as Collateral, Amount Foreclosed
Number of customers
Number of Customers
Number of Customers
Percent of foreclosures in process
Percent of Foreclosures in Process
Percent of Foreclosures in Process
Total residential loans included in held for sale loans
Loans Receivable Held-for-sale, Amount
Remeasurement of net deferred tax asset resulting in additional income tax expense
Tax Cuts And Jobs Act Of 2017 Change In Tax Rate Income Tax Expense (Benefit)
Amount of income tax expense (benefit) for remeasurement of deferred tax from change in tax rate pursuant to Tax Cuts and Jobs Act.
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Common stock, shares authorized (in shares)
Common Stock, Shares Authorized
Common stock, shares issued (in shares)
Common Stock, Shares, Issued
Treasury stock (in shares)
Treasury Stock, Shares
New Accounting Pronouncements or Change in Accounting Principle [Table]
New Accounting Pronouncements or Change in Accounting Principle [Table]
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Retained earnings
Retained Earnings [Member]
Adjustments for New Accounting Pronouncements [Axis]
Adjustments for New Accounting Pronouncements [Axis]
Type of Adoption [Domain]
Type of Adoption [Domain]
Accounting Standards Update 2014-09
Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract liability recognition
Contract with Customer, Liability, Revenue Recognized
Modified retrospective basis adoption of Revenue Recognition Accounting Codification Standard 606
Cumulative Effect of New Accounting Principle in Period of Adoption
Reclassification of the income tax effects of the Tax Cuts and Jobs Act from accumulated other comprehensive income for adoption of ASU 2018-02
Tax Cuts And Jobs Act Of 2017, Reclassification From Aoci To Retained Earnings, Tax Effect
Amount of increase (decrease) in accumulated other comprehensive income (AOCI) for reclassification to retained earnings of tax effect from remeasurement of deferred tax pursuant to Tax Cuts and Jobs Act of 2017.
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Interest Rate Lock Commitment
Interest Rate Lock Commitments [Member]
Forward Commitments
Forward Contracts [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs
Realized gain recognized in non-interest income
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings
Ending balance
Subsequent Events [Abstract]
SUBSEQUENT EVENTS
Subsequent Events [Text Block]
EARNINGS PER SHARE
Earnings Per Share [Text Block]
Schedule of Financing Receivable, Allowance for Credit Losses [Table]
Schedule of Financing Receivable, Allowance for Credit Losses [Table]
Allowance for loan losses
Financing Receivable, Allowance for Credit Losses [Line Items]
Activity in the allowance for loan losses
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period
Loans and Leases Receivable, Allowance
Charged-off loans
Allowance for Loan and Lease Losses, Write-offs
Recoveries on charged-off loans
Allowance for Loan and Lease Loss, Recovery of Bad Debts
Provision (releases) for loan losses
Provision for Loan and Lease Losses
Balance at end of period
Allowance For Loan Losses
Individually evaluated for impairment
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment
Collectively evaluated
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment
Total
Fixed rate advances
Federal Home Loan Bank Fixed Rate Advances [Member]
Fixed rate borrowings from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and also in times of liquidity shortages.
Carrying Value
Federal Home Loan Bank, Advances, Rolling Maturity [Abstract]
2018
Federal Home Loan Bank, Advances, Maturities Summary, Due in Next Rolling Twelve Months
2019
Federal Home Loan Bank, Advances, Maturities Summary, Due in Rolling Year Two
2020
Federal Home Loan Bank, Advances, Maturities Summary, Due in Rolling Year Three
2021
Federal Home Loan Bank, Advances, Maturities Summary, Due in Rolling Year Four
2022
Federal Home Loan Bank, Advances, Maturities Summary, Due in Rolling Year Five
2023 and thereafter
Federal Home Loan Bank, Advances, Maturities Summary, Due after Rolling Year Five
Total FHLB advances
Advances from Federal Home Loan Banks
Weighted Average Rate
Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate of Amounts Due [Abstract]
2018
Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate of Amounts Due within One Year of Balance Sheet Date
2019
Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate, One to Two Years from Balance Sheet Date
2020
Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate, Two to Three Years from Balance Sheet Date
2021
Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate, Three to Four Years from Balance Sheet Date
2022
Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate, Four to Five Years from Balance Sheet Date
2023 and thereafter
Federal Home Loan Bank Advances Maturities Summary Average Interest Rate of Amounts Due after Four Years of Balance Sheet Date
The weighted average interest rate applicable to the Federal Home Loan Bank advances maturing after the fourth fiscal year following the latest fiscal year.
Total FHLB advances
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End
ALLOWANCE FOR LOAN LOSSES
Allowance for Credit Losses [Text Block]
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Table]
Timing of Transfer of Good or Service [Axis]
Timing of Transfer of Good or Service [Axis]
Timing of Transfer of Good or Service [Domain]
Timing of Transfer of Good or Service [Domain]
Products and services transferred at a point in time
Transferred at Point in Time [Member]
Products and services transferred over time
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Revenue
Revenue from Contract with Customer, Excluding Assessed Tax
Brokered time deposits
Brokered Time Deposits
Represents the amount of time deposits placed by or through the assistance of a deposit broker, also known as brokered deposit liabilities.
Reciprocal deposits
Reciprocal Money Market Deposits
Represents the reciprocal deposits.
BORROWED FUNDS
Debt Disclosure [Text Block]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]
Stockholders' Equity Note [Abstract]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Accounting Standards Update 2018-02
Accounting Standards Update 2018-02 [Member]
Accounting Standards Update 2018-02 [Member]
Net unrealized loss on AFS securities
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Net unrealized loss on effective cash flow hedging derivatives
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Net unrealized loss on post-retirement plans
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Accumulated other comprehensive (loss) income
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period
Stockholders' Equity Attributable to Parent
Other comprehensive (loss) gain before reclassifications
OCI, before Reclassifications, Net of Tax, Attributable to Parent
Less: amounts reclassified from accumulated other comprehensive income
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent
Less: amounts reclassified from accumulated other comprehensive income for ASU 2018-02
Balance at end of period
Derivative [Table]
Derivative [Table]
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Derivative Contract [Domain]
Derivative Contract [Domain]
Interest rate caps agreements
Interest Rate Cap [Member]
Interest Rate Swap
Interest Rate Swap [Member]
Derivative [Line Items]
Derivative [Line Items]
Premiums paid
Derivative, Premium
Derivative, Premium
Cap interest rate
Derivative, Cap Interest Rate
Effective percentage interest rate, maximum
Deposit liabilities, collateral issued to counterparty, interest rate swap
Collateral Already Posted, Aggregate Fair Value
Statement of Stockholders' Equity [Abstract]
Statement [Table]
Statement [Table]
Common stock amount
Common Stock [Member]
Additional paid-in capital
Additional Paid-in Capital [Member]
Accumulated other comprehensive income (loss)
Treasury stock
Treasury Stock [Member]
Statement
Statement [Line Items]
Increase (Decrease) in Stockholders' Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income:
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Other comprehensive income (loss)
Cash dividends declared
Dividends, Common Stock, Cash
Acquisition of Lake Sunapee Bank Group
Stock Issued During Period, Value, Acquisitions
Treasury stock purchased
Treasury Stock, Value, Acquired, Cost Method
Net issuance to employee stock plans, including related tax effects
Stock Issued During Period, Value, Stock Options Exercised
Three-for-two stock split
Stock Split During Period, Value
Stock Split During Period, Value
Recognition of stock based compensation
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Assets
Assets [Abstract]
Cash and due from banks
Cash and Due from Banks
Interest-bearing deposit with the Federal Reserve Bank
Interest-bearing Deposits in Banks and Other Financial Institutions
Total cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Federal Home Loan Bank stock
Federal Home Loan Bank Stock
Total securities
Investments
Commercial real estate
Loans Receivable, Gross, Commercial, Real Estate
Commercial and industrial
Loans Receivable, Gross, Commercial and Industrial
Residential real estate
Loans and Leases Receivable, Gross, Consumer, Mortgage
Consumer
Loans and Leases Receivable, Gross, Consumer, Real Estate
Less: Allowance for loan losses
Net loans
Loans and Leases Receivable, Net Amount
Premises and equipment, net
Property, Plant and Equipment, Net
Goodwill
Goodwill
Other intangible assets
Intangible Assets, Net (Excluding Goodwill)
Cash surrender value of bank-owned life insurance
Bank Owned Life Insurance
Deferred tax assets, net
Deferred Tax Assets, Net
Other assets
Other Assets
Total assets
Assets
Liabilities
Liabilities [Abstract]
Demand and other non-interest bearing deposits
Noninterest-bearing Domestic Deposit, Demand
NOW deposits
Deposits, Negotiable Order of Withdrawal (NOW)
Savings deposits
Deposits, Savings Deposits
Money market deposits
Deposits, Money Market Deposits
Time deposits
Total deposits
Deposits
Senior borrowings
Senior Notes
Subordinated borrowings
Junior Subordinated Notes
Other liabilities
Other Liabilities
Total liabilities
Liabilities
Shareholders’ equity
Stockholders' Equity Attributable to Parent [Abstract]
Capital stock, par value $2.00; authorized 20,000,000 shares; issued 16,428,388 and 16,428,388 shares at September 30, 2018 and December 31, 2017, respectively
Common Stock, Value, Issued
Additional paid-in capital
Additional Paid in Capital, Common Stock
Retained earnings
Retained Earnings (Accumulated Deficit)
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Less: 919,710 and 985,532 shares of treasury stock at September 30, 2018 and December 31, 2017, respectively
Treasury Stock, Value
Total shareholders’ equity
Total liabilities and shareholders’ equity
Liabilities and Equity
SECURITIES AVAILABLE FOR SALE
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
LOANS
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]
Measurement Input Type [Axis]
Measurement Input Type [Axis]
Measurement Input Type [Domain]
Measurement Input Type [Domain]
Measurement Input, Loss Severity [Member]
Measurement Input, Loss Severity [Member]
Constant Prepayment Rate
Measurement Input, Constant Prepayment Rate [Member]
Discount Rate
Measurement Input, Discount Rate [Member]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum
Minimum [Member]
Maximum
Maximum [Member]
Valuation Approach and Technique [Axis]
Valuation Approach and Technique [Axis]
Valuation Approach and Technique [Domain]
Valuation Approach and Technique [Domain]
Fair value of collateral -appraised value
Fair Value Of Collateral Valuation Technique [Member]
Fair value of collateral approach valuation technique used to measure fair value.
Discount cash flow
Discounted Cash Flow Valuation Technique [Member]
Discounted cash flow approach valuation technique used to measure fair value.
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Prepayment Speed
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Prepayment Speed
Loss severity
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Expected Credit Losses
Appraised value
Fair Value Inputs Appraised Value
Represents the appraised value used as an input to measure fair value.
Discount rate
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate
Cash flows
Fair Value Inputs, Cash Flow
Fair Value Inputs, Cash Flow
Selling Costs
Fair Value Inputs, Selling Costs
Fair Value Inputs, Selling Costs
Schedule of information about derivative assets and liabilities
Schedule of Derivative Instruments [Table Text Block]
Investment Holdings [Table]
Investment Holdings [Table]
Corporate bonds
Investment Holdings [Line Items]
Investment Holdings [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Gross Unrealized Losses
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less Than Twelve Months
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Over Twelve Months
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Total
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss
Fair Value
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]
Less Than Twelve Months
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months
Over Twelve Months
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer
Total
Debt Securities, Available-for-sale, Unrealized Loss Position
Summary of Time Deposits
Schedule of Time Deposits [Table Text Block]
Tabular disclosure of deposits that cannot be withdrawn before a set date without penalty or for which notice of withdrawal is required. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.
Time Deposit Maturities
Time Deposit Maturities [Table Text Block]
Other accumulated comprehensive loss, before tax:
AOCI before Tax, Attributable to Parent
Income taxes related to items of accumulated other comprehensive loss:
AOCI Tax, Attributable to Parent
Accumulated other comprehensive loss
Hedging Designation [Axis]
Hedging Designation [Axis]
Hedging Designation [Domain]
Hedging Designation [Domain]
Designated as hedging instrument
Designated as Hedging Instrument [Member]
Not designated as hedging instrument
Not Designated as Hedging Instrument [Member]
Hedging Relationship [Axis]
Hedging Relationship [Axis]
Hedging Relationship [Domain]
Hedging Relationship [Domain]
Cash flow hedges:
Cash Flow Hedging [Member]
Economic hedges:
Economic Hedging [Member]
Represents information pertaining to derivatives that are not designated as accounting hedges but are being used as economic hedges.
Forward sale commitments
Forward Commitments [Member]
Represents the forward commitments that are free-standing derivatives which are carried at fair value with changes recorded in the mortgage banking component of noninterest income in the entity's consolidated statements of income.
Interest rate lock commitments
Customer loan derivative liability
Customer Loan Derivative Liability [Member]
Customer Loan Derivative Liability [Member]
Customer loan derivative asset
Customer Loan Derivative Asset [Member]
Customer Loan Derivative Asset [Member]
Interest rate swap agreements and non-hedging derivative assets and liabilities
Derivative Instrument Detail [Abstract]
Notional Amount
Derivative, Notional Amount
Weighted Average Maturity
Derivative, Average Remaining Maturity
Estimated Fair Value Asset (Liability)
Derivative Assets (Liabilities), at Fair Value, Net
Realized gains (losses)
Gain (Loss) on Sale of Derivatives
Document and Entity Information
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Document Type
Document Type
Document Period End Date
Document Period End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Amendment Flag
Amendment Flag
Entity Emerging Growth Company
Entity Emerging Growth Company
Entity Small Business
Entity Small Business
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Total commercial and industrial
Total residential real estate
Total consumer
Total loans, gross
Loans and Leases Receivable, Gross
Schedule of Activity in the Allowance for Loan Losses
Allowance for Credit Losses on Financing Receivables [Table Text Block]
Schedule of Loans by Risk Rating
Financing Receivable Credit Quality Indicators [Table Text Block]
Summary of Information About Total Loans Rated Special Mention or Lower
Schedule of Financing Receivable Rated Special Mention or Lower [Table Text Block]
Tabular disclosure of financing receivables, rated as special mention or lower.
Non-accrual loans
Non-accrual loans
Financing Receivable, Recorded Investment, Nonaccrual Status
Net unrealized gain (loss) on AFS securities
Net unrealized gain (loss) arising during the period
Other Comprehensive Income (Loss) before Reclassifications [Abstract]
Before Tax
OCI, before Reclassifications, before Tax, Attributable to Parent
Tax Effect
Other Comprehensive Income (Loss) before Reclassifications, Tax
Net of Tax
Less: reclassification adjustment for gains (losses) realized in net income
Reclassification from Accumulated Other Comprehensive Income Current Period [Abstract]
Before Tax
Reclassification from AOCI, Current Period, before Tax, Attributable to Parent
Tax Effect
Reclassification from AOCI, Current Period, Tax
Net of Tax
Other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Before Tax
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent
Tax Effect
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent
Loans receivable: balance at end of period
Loans and Leases Receivable, Other Information [Abstract]
Individually evaluated for impairment
Financing Receivable, Individually Evaluated for Impairment
Purchased credit impaired
Financing Receivable, Purchased Credit-Impaired Loans
Financing Receivable, Purchased Credit-Impaired Loans
Collectively evaluated
Financing Receivable, Collectively Evaluated for Impairment
Total
CAPITAL RATIOS AND SHAREHOLDERS' EQUITY
Stockholders' Equity Note Disclosure [Text Block]
Cumulative Effect of Changes Made for Adoption
Disaggregation of Revenue
Disaggregation of Revenue [Table Text Block]
Contract Balances from Contracts with Customers
Contract with Customer, Asset and Liability [Table Text Block]
Cash dividends declared (in dollars per share)
Common Stock, Dividends, Per Share, Declared
Treasury stock purchased (in shares)
Treasury Stock, Shares, Acquired
Net shares issued to employee stock plans (in shares)
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures
Stock split conversion ratio
Stockholders' Equity Note, Stock Split, Conversion Ratio
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Carrying Amount
Reported Value Measurement [Member]
Liability Class [Axis]
Liability Class [Axis]
Fair Value by Liability Class [Domain]
Fair Value by Liability Class [Domain]
Senior subordinated
Senior Subordinated Loans [Member]
Junior subordinated
Estimated fair values of financial instruments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash and cash equivalents
Cash and Cash Equivalents, Fair Value Disclosure
FHLB stock
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure
Net loans
Loans Receivable, Fair Value Disclosure
Accrued interest receivable
Interest Receivable
Cash surrender value of bank-owned life insurance policies
Cash Surrender Value, Fair Value Disclosure
Financial Liabilities
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Total deposits
Deposits, Fair Value Disclosure
Securities sold under agreements to repurchase
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure
FHLB advances
Federal Home Loan Bank Borrowings, Fair Value Disclosure
Subordinated borrowings
Subordinated Debt Obligations, Fair Value Disclosure
DEPOSITS
Deposit Liabilities Disclosures [Text Block]
Number of Modifications (in modification)
Financing Receivable, Modifications, Number of Contracts
Pre-Modification Outstanding Recorded Investment
Financing Receivable, Modifications, Pre-Modification Recorded Investment
Post-Modification Outstanding Recorded Investment
Financing Receivable, Modifications, Post-Modification Recorded Investment
Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table]
Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table]
Internal Credit Assessment [Axis]
Internal Credit Assessment [Axis]
Internal Credit Assessment [Domain]
Internal Credit Assessment [Domain]
Pass
Pass [Member]
Special mention
Special Mention [Member]
Substandard
Substandard [Member]
Doubtful
Doubtful [Member]
Non-accrual
Non Accrual [Member]
Represents the category of financing receivables considered to be non-accrual.
Total classified
Classified [Member]
Represents the category of financing receivables considered to be classified.
Total Criticized
Criticized [Member]
Financial Instrument Performance Status [Axis]
Financial Instrument Performance Status [Axis]
Financial Instrument Performance Status [Domain]
Financial Instrument Performance Status [Domain]
Performing
Performing Financial Instruments [Member]
Nonperforming
Nonperforming Financial Instruments [Member]
Total residential real estate and consumer
Residential Real Estate And Consumer [Member]
Residential Real Estate And Consumer [Member]
Commercial real estate other
Tax exempt loans
Residential real estate
Credit quality information
Financing Receivable, Recorded Investment [Line Items]
Total loans
Total Performing and Nonperforming Loans
Financing Receivable, Net
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table]
Consolidated Entities [Axis]
Consolidated Entities [Axis]
Consolidated Entities [Domain]
Consolidated Entities [Domain]
Bank
Subsidiaries [Member]
Tier 1 capital to risk-weighted assets
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital to risk weighted assets
Capital to Risk Weighted Assets
Common equity tier 1 capital to risk weighted assets
Common Equity Tier One Risk Based Capital to Risk Weighted Assets
Common equity Tier 1 capital divided by risk weighted assets as defined by regulations.
Tier 1 capital to risk weighted assets
Tier One Risk Based Capital to Risk Weighted Assets
Tier 1 capital to average assets
Tier One Leverage Capital to Average Assets
Regulatory minimum to be well capitalized, Total capital to risk weighted assets
Capital Required to be Well Capitalized to Risk Weighted Assets
Regulatory minimum to be well capitalized, Common Equity Tier 1 Capital to risk weighted assets
Common Equity Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets
The Common equity Tier 1 capital ratio (Common equity Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action.
Regulatory minimum to be well capitalized, Tier 1 capital to risk weighted assets
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets
Regulatory minimum to be well capitalized, Tier 1 capital to average assets
Tier One Leverage Capital Required to be Well Capitalized to Average Assets
Modified retrospective basis adoption of Revenue Recognition Accounting Codification Standard 606
Schedule of Actual and Required Capital Ratios
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]
Schedule of Components of Accumulated Other Comprehensive Income
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Components of Other Comprehensive Income
Comprehensive Income (Loss) [Table Text Block]
Schedule of Gross Changes in Each Component of Accumulated Other Comprehensive Income
Schedule of Changes in Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Tabular disclosure of the changes in components of accumulated other comprehensive income (loss).
Product and Service [Axis]
Product and Service [Axis]
Product and Service [Domain]
Product and Service [Domain]
Trust management fees
Fiduciary and Trust [Member]
Financial services fees
Investment Advisory, Management and Administrative Service [Member]
Interchange fees
Debit Card [Member]
Customer deposit fees
Deposit Account [Member]
Other customer service fees
Financial Service, Other [Member]
Balances from contracts with customers only:
Contract with Customer, Asset, Net [Abstract]
Other Assets
Contract with Customer, Asset, Net
Other Liabilities
Contract with Customer, Liability
Income Statement [Abstract]
Products and Services [Table]
Products and Services [Table]
Trust and investment management fee income
Product Information [Line Items]
Product Information [Line Items]
Interest and dividend income
Interest and Dividend Income, Operating [Abstract]
Loans
Interest and Fee Income, Loans and Leases
Securities and other
Interest and Dividend Income, Securities, Operating
Total interest and dividend income
Interest and Dividend Income, Operating
Interest expense
Interest Expense [Abstract]
Deposits
Interest Expense, Deposits
Borrowings
Interest Expense, Borrowings
Total interest expense
Interest Expense
Net interest income
Interest Income (Expense), Net
Provision for loan losses
Net interest income after provision for loan losses
Interest Income (Expense), after Provision for Loan Loss
Non-interest income
Noninterest Income [Abstract]
Trust and investment management fee income
Fees And Commissions Fiduciary And Trust Activities1
Fees And Commissions Fiduciary And Trust Activities1
Insurance brokerage service income
Insurance Commissions and Fees
Customer service fees
Fees And Commissions Depositor Accounts1
Fees And Commissions Depositor Accounts1
Gain on sales of securities, net
Debt and Equity Securities, Gain (Loss)
Bank-owned life insurance income
Bank Owned Life Insurance Income
Other income
Noninterest Income, Other
Total non-interest income
Noninterest Income
Non-interest expense
Noninterest Expense [Abstract]
Salaries and employee benefits
Labor and Related Expense
Occupancy and equipment
Occupancy, Net
Loss on premises and equipment, net
Gain (Loss) on Disposition of Property Plant Equipment
Outside services
Outside Service Fees
Outside Service Fees
Professional services
Professional Fees
Communication
Communications and Information Technology
Amortization of intangible assets
Amortization of Intangible Assets
Acquisition, conversion and other expenses
Other Nonrecurring Expense
Other expenses
Other Noninterest Expense
Total non-interest expense
Noninterest Expense
Income before income taxes
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Income tax expense
Income Tax Expense (Benefit)
Net income
Earnings per share:
Earnings Per Share, Basic and Diluted [Abstract]
Basic (in dollars per share)
Earnings Per Share, Basic
Diluted (in dollars per share)
Earnings Per Share, Diluted
Weighted average common shares outstanding:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic (in shares)
Weighted Average Number of Shares Outstanding, Basic
Diluted (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Basis of Presentation
Consolidation, Policy [Policy Text Block]
Reclassifications
Reclassification, Policy [Policy Text Block]
Tax Cuts and Jobs Act
Income Tax, Policy [Policy Text Block]
Recent Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Adoption of ASC 606, Revenue from Contracts with Customers
Revenue from Contract with Customer [Policy Text Block]
FAIR VALUE MEASUREMENTS
Fair Value Disclosures [Text Block]
Pricing Model
Pricing Model Valuation Technique [Member]
Pricing model approach valuation technique used to measure fair value.
Derivative asset (liability), fair value
Total
Fair Value, Net Asset (Liability)
Closing Ratio
Fair Value Inputs Closing Ratio
Represents the closing ratio used as an input to measure fair value.
Origination Costs, per loan
Fair Value Inputs, Origination Cost Per Loan
Fair Value Inputs, Origination Cost Per Loan
Available-for-sale Securities, Fair Value to Amortized Cost Basis
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Gross Unrealized Gains
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax
Gross Unrealized Losses
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax
Fair Value
Revenue, Initial Application Period Cumulative Effect Transition [Table]
Revenue, Initial Application Period Cumulative Effect Transition [Table]
Initial Application Period Cumulative Effect Transition [Axis]
Initial Application Period Cumulative Effect Transition [Axis]
Initial Application Period Cumulative Effect Transition [Domain]
Initial Application Period Cumulative Effect Transition [Domain]
Balances Without Adoption of ASC 606
Calculated under Revenue Guidance in Effect before Topic 606 [Member]
Adjustments due to Topic 606
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Statement of Cash Flows [Abstract]
Cash flows from operating activities:
Net Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile net income to net cash provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Net amortization of securities
Accretion (Amortization) of Discounts and Premiums, Investments
Deferred tax benefit
Deferred Income Tax Expense (Benefit)
Change in unamortized net loan costs and premiums
Change in Unamortized Net Loan Costs and Premiums
This element represent as Change In Unamortized Net Loan Costs And Premiums.
Premises and equipment depreciation and amortization expense
Depreciation, Depletion and Amortization, Nonproduction
Stock-based compensation expense
Share-based Compensation
Accretion of purchase accounting entries, net
Amortization
Amortization of other intangibles
Amortization of Other Intangible Assets
Amortization of Other Intangible Assets
Income from cash surrender value of bank-owned life insurance policies
Gain on sales of securities, net
Marketable Securities, Realized Gain (Loss)
Loss on premises and equipment, net
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property
Net change in other assets and liabilities
Other Noncash Income (Expense)
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Cash flows from investing activities:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Proceeds from sales of securities available for sale
Proceeds from Sale of Debt Securities, Available-for-sale
Proceeds from maturities, calls and prepayments of securities available for sale
Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale
Purchases of securities available for sale
Payments to Acquire Debt Securities, Available-for-sale
Net change in loans
Payments for (Proceeds from) Loans and Leases
Purchase of loans
Payments to Acquire Loans Held-for-investment
Purchase of Federal Home Loan Bank stock
Payments to Acquire Federal Reserve Bank Stock
Proceeds from sale of Federal Home Loan Bank stock
Proceeds from Sale of Federal Home Loan Bank Stock
Purchase of premises and equipment, net
Payments to Acquire Property, Plant, and Equipment
Purchase of bank-owned life insurance income
Payment to Acquire Life Insurance Policy, Investing Activities
Acquisitions, net of cash (paid) acquired
Payments to Acquire Businesses, Net of Cash Acquired
Proceeds from sale of other real estate
Proceeds from Sale of Other Real Estate
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Cash flows from financing activities:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Net increase in deposits
Increase (Decrease) in Deposits
Net change in short-term advances from the Federal Home Loan Bank
Proceeds from (Repayments of) Short-term Debt
Net change in long-term advances from the Federal Home Loan Bank
Proceeds from (Repayments of) Long-term Debt and Capital Securities
Repayment of short-term other borrowings
Repayments of Other Short-term Debt
Net change in securities sold repurchase agreements
Increase (Decrease) in Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Net
Exercise of stock options
Proceeds from Stock Options Exercised
Purchase of treasury stock
Payments for Repurchase of Common Stock
Common stock cash dividends paid
Payments of Ordinary Dividends, Common Stock
Net cash (used in) provided by financing activities
Net Cash Provided by (Used in) Financing Activities
Net change in cash and cash equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and cash equivalents at beginning of year
Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations
Cash and cash equivalents at end of period
Supplemental cash flow information:
Supplemental Cash Flow Information [Abstract]
Interest paid
Interest Paid, Excluding Capitalized Interest, Operating Activities
Income taxes paid, net
Income Taxes Paid, Net
Acquisition of non-cash assets and liabilities:
Noncash or Part Noncash Acquisition, Net Nonmonetary Assets Acquired (Liabilities Assumed) [Abstract]
Assets acquired
Noncash or Part Noncash Acquisition, Value of Assets Acquired
Liabilities assumed
Noncash or Part Noncash Acquisition, Value of Liabilities Assumed
Other non-cash changes:
Other Noncash Investing and Financing Items [Abstract]
Real estate owned acquired in settlement of loans
Real Estate Owned Acquired in Settlement of Loans
Represents the value of real estate acquired in settlement of loans through non cash transactions.
Bar Harbor Bank & Trust
Guarantor Subsidiaries [Member]
Class of Stock [Axis]
Class of Stock [Axis]
Class of Stock [Domain]
Class of Stock [Domain]
Visa Class B
Visa Class B [Member]
Visa Class B [Member]
Visa Class A
Visa Class [Member]
Visa Class A [Member]
Shares sold (in shares)
Sale of Stock, Number of Shares Issued in Transaction
Gain on sale of stock
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee
Conversion ratio, Visa Class
Investment Owned Shares Conversion Ratio
Investment Owned Shares Conversion Ratio
Visa shares obtained from IPO (in shares)
Investment Owned, Shares Acquired From IPO
Investment Owned, Shares Acquired From IPO
Visa shares acquired through business combination (in shares)
Investment Owned, Shares Acquired Through Business Combination
Investment Owned, Shares Acquired Through Business Combination
Number of Visa Class shares owned (in shares)
Investment Owned, Balance, Shares
Available for sale securities portfolio, number of securities (security)
Available for Sale Securities Portfolio Number of Securities
Represents the number of securities in the entity's portfolio of available-for-sale securities.
Available-for-sale, securities in unrealized loss positions (security)
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions
Available for sale and held to maturity securities, continuous unrealized loss position, aggregate losses percentage
Available for Sale and Held to Maturity Securities, Continuous Unrealized Loss Position, Aggregate Losses Percentage
Represents the aggregate unrealized losses, expressed as a percentage of the amortized cost of the securities in a continuous unrealized loss position categorized as held-to-maturity and available-for-sales securities.
Time less than $100,000
Time Deposits, Less than $100,000
Time $100,000 through $250,000
Time Deposits, $100,000 or More
Time $250,000 or more
Time Deposits, at or Above FDIC Insurance Limit
Average number of basic common shares outstanding (in shares)
Plus: dilutive effect of stock options and awards outstanding (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Average number of diluted common shares outstanding (in shares)
Anti-dilutive options excluded from earnings calculation (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount