Amendment Flag
Current Fiscal Year End Date
Document Period End Date
Entity [Domain]
Entity [Domain]
Entity Well-known Seasoned Issuer
Entity Voluntary Filers
Entity Current Reporting Status
Entity Filer Category
Entity Public Float
Entity Registrant Name
Entity Central Index Key
Entity Common Stock, Shares Outstanding
Document Fiscal Year Focus
Document Fiscal Period Focus
Legal Entity [Axis]
Legal Entity [Axis]
Document Type
AM Best Rating A+ [Member]
AM Best, A+ Rating [Member]
AM Best Rating, A Ratings [Member]
AM Best Rating, B Rating [Member]
AM Best, B Rating [Member]
AM Best Rating, B+ Rating [Member]
AM Best Rating, A- Rating [Member]
Award Type [Axis]
Number of securities with market fair value less than amortized cost
ACCOUNTING POLICIES [Abstract]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unrealized Gains (Losses) on Securities Available For Sale [Member]
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated depreciation and amortization
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
ACCUMULATED OTHER COMPREHENSIVE LOSS [Abstract]
Accumulated Other Comprehensive Loss [Member]
OTTI recognized in accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Not Credit Loss, Net of Tax, Available-for-sale, Debt Securities
Accumulated other comprehensive loss
Accumulated other comprehensive loss for regulatory purposes
Share based compensation withholding obligation
Adjustments Related to Tax Withholding for Share-based Compensation
ADJUSTMENTS TO RECONCILE NET INCOME TO NET CASH FROM OPERATING ACTIVITIES
ADJUSTMENTS TO RECONCILE NET INCOME TO NET CASH FROM (USED) IN OPERATING ACTIVITIES
Adjustments for New Accounting Pronouncements [Axis]
Total Adjustments
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities
Total FHLB advances, Amount
Advances from the FHLB
Advertising
Total compensation expense (recovery) recognized
Allocated Share-based Compensation Expense
Increase (decrease) in allowance for loan losses
Allowance for loan losses and recorded investment in loans by portfolio segment
Amortization
Amortization of Mortgage Servicing Rights (MSRs)
Intangible amortization expense
Amortization of Intangible Assets
Antidilutive Securities [Axis]
Antidilutive shares excluded from computation of diluted loss per share (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities, Name [Domain]
Other real estate, additional charge
Impairment charges recognized [Abstract]
Other Asset Backed [Member]
Assets [Abstract]
Assets, Fair Value Disclosure [Abstract]
Total Assets
Total assets
ASSETS
ASSETS [Abstract]
Assets [Abstract]
Maturing after five years but within ten years
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis
Total, Fair value
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value
Securities available for sale
Fair value
Securities available for sale
Less Than Twelve Months, Fair Value
Maturing after one year but within five years
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Unrealized gains
Twelve Months or More, Unrealized Losses
Maturing after ten years
Twelve Months or More, Fair Value
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Maturing after one year but within five years
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis
Total, Unrealized Losses
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss
Unrealized losses
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Maturing after ten years
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis
Amortized cost
Available-for-sale Securities, Amortized Cost Basis
Maturing after five years but within ten years
Less Than Twelve Months, Unrealized Losses
Available-for-sale securities, debt maturities, amortized cost basis
Available-for-sale Debt Securities, Amortized Cost Basis
Total available-for-sale securities fair value
Available-for-sale Securities, Debt Maturities, Single Maturity Date
Gain and losses realized on sale of securities available for sale [Abstract]
Losses
Maturing within one year
U.S. agency residential mortgage-backed
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
U.S. agency residential mortgage backed
Maturing within one year
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis
Proceeds
Realized gains
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Bank-owned life insurance
Bank owned life insurance
Bank Owned Life Insurance Income
REGULATORY MATTERS [Abstract]
Buildings [Member]
Building [Member]
Counterparty Name [Axis]
Total risk-based capital
Capital
Total capital to risk-weighted assets [Abstract]
Minimum for Adequately Capitalized Institutions, Ratio
Actual, Ratio
Capital to Risk Weighted Assets
Minimum for Adequately Capitalized Institutions, Amount
Minimum for Well Capitalized Institutions, Amount
Minimum for Well-Capitalized Institutions, Ratio
Recorded Book Balance [Member]
Reported Value Measurement [Member]
Cash and Cash Equivalents at Beginning of Year
Cash and Cash Equivalents at End of Year
Cash and Cash Equivalents
Cash and Cash Equivalents, at Carrying Value
STATEMENTS OF CASH FLOWS
Cash and due from banks
Net Increase (Decrease) in Cash and Cash Equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and due from banks
Cash and Cash Equivalents, Fair Value Disclosure
Cash Flow Hedge [Member]
Cash Flow Hedging [Member]
Chief Executive Officer [Member]
Class of Stock [Line Items]
Stock Reserved [Line Items]
Class of Stock [Domain]
Accounts Receivables Due to Mepco [Member]
Commercial [Member]
Commercial [Member]
U.S. Agency Commercial Mortgage-Backed [Member]
Commercial and Industrial [Member]
Commercial and Industrial [Member]
COMMITMENTS AND CONTINGENT LIABILITIES
Commitments and Contingencies Disclosure [Text Block]
Commitments and contingent liabilities
Commitments to Extend Credit [Member]
COMMITMENTS AND CONTINGENT LIABILITIES [Abstract]
Declared (in dollars per share)
Common Stock [Member]
Common stock, shares issued (in shares)
Common stock, par value (in dollars per share)
Common Stock Subject to Mandatory Redemption [Member]
Common stock, shares authorized (in shares)
Common stock, no par value, 500,000,000 shares authorized; issued and outstanding: 21,258,092 shares at December 31, 2016 and 22,251,373 shares at December 31, 2015
Common stock
Common stock reserved for issuance (in shares)
Common Stock, Capital Shares Reserved for Future Issuance
Common stock, shares outstanding (in shares)
Common Stock [Abstract]
Communications
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Components of deferred tax assets and liabilities [Abstract]
ACCUMULATED OTHER COMPREHENSIVE LOSS
Comprehensive Income (Loss) Note [Text Block]
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
COMPREHENSIVE INCOME
Concentration Risk Type [Axis]
CONCENTRATIONS OF CREDIT RISK
Concentration Risk Disclosure [Text Block]
Concentration Risk [Line Items]
Concentration Risk [Table]
Concentration Risk Type [Domain]
INDEPENDENT BANK CORPORATION (PARENT COMPANY ONLY) FINANCIAL INFORMATION
Condensed Financial Information of Parent Company Only Disclosure [Text Block]
Condensed Financial Statements, Captions [Line Items]
INDEPENDENT BANK CORPORATION (PARENT COMPANY ONLY) FINANCIAL INFORMATION [Abstract]
Consolidated [Member]
Consolidated Entities [Member]
PRINCIPLES OF CONSOLIDATION
Consumer [Member]
Retail [Member]
Corporate [Member]
Credit Rating, AM Best [Axis]
Credit Rating, AM Best [Domain]
Cumulative effect of change in accounting principle
Current expense (benefit)
Issue Date
Debt Instrument, Issuance Date
OTHER BORROWINGS
Debt Disclosure [Text Block]
OTHER BORROWINGS [Abstract]
Interest Rate
Term of note
Interest Rate Spread
Debt Instrument, Basis Spread on Variable Rate
Trust Preferred Securities Issued
Debt Instrument, Face Amount
Maturity Date
Property and equipment
Deferred Tax Assets, Property, Plant and Equipment
Unrealized loss on securities available for sale
Deferred expense
Gross deferred tax liabilities
Deferred Tax Liabilities, Gross
Deferred tax assets [Abstract]
Gross deferred tax assets net of valuation allowance
Deferred Tax Assets, Net of Valuation Allowance
Loss carryforwards
Gross deferred tax assets
Deferred Tax Assets, Gross
Deferred tax assets, net
Deferred tax assets, net
Deferred tax assets
Allowance for loan losses
Share based payments
Litigation settlement
Deferred compensation
Alternative minimum tax credit carry forward
Other
Deferred Tax Assets, Other
Deferred tax liabilities [Abstract]
Unrealized loss on trading securities
Other
Deferred Tax Liabilities, Other
Valuation allowance
Deferred Tax Assets, Valuation Allowance
Maximum matching contribution, percent
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay
Maximum contribution of employees' eligible wages
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent
401(k) and employee stock ownership plans amount expensed
Defined Contribution Plan, Cost Recognized
DEPOSITS
Deposit Liabilities Disclosures [Text Block]
DEPOSITS [Abstract]
Deposits
Total Deposits
Deposits
Savings and interest-bearing checking
Net depreciation, amortization of intangible assets and premiums and accretion of discounts on securities, loans and interest bearning deposits - time
Depreciation, Amortization and Accretion, Net
Depreciation expense
Derivative Instrument [Axis]
Derivative Instrument [Axis]
DERIVATIVE FINANCIAL INSTRUMENTS
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Average Maturity
Derivative financial instrument according to type of hedge[ Abstract]
Derivatives
Derivative financial instruments
DERIVATIVE FINANCIAL INSTRUMENTS [Abstract]
Notional Amount
Derivatives
Derivative financial instruments
Derivative Liability
Gain (Loss) Recognized in Income
Fair Value
Asset Derivatives
Derivative Asset, Fair Value, Gross Asset
Liability Derivatives
Fair value of derivative instruments, balance sheet location [Abstract]
Loss Recognized in Other Comprehensive Income (Loss) (Effective Portion)
Loss Reclassified from Accumulated Other Comprehensive Loss into Income (Effective Portion)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Contract [Domain]
Hedging Relationship [Axis]
Derivative Instruments, Gain (Loss) [Table]
Derivatives, Fair Value [Line Items]
DERIVATIVE FINANCIAL INSTRUMENTS
Director [Member]
SHARE BASED COMPENSATION AND BENEFIT PLANS
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
SHARE BASED COMPENSATION AND BENEFIT PLANS [Abstract]
Cash dividends declared
NET INCOME PER COMMON SHARE
Earnings Per Share, Policy [Policy Text Block]
Basic (in dollars per share)
Earnings Per Share, Basic
Diluted (in dollars per share)
Earnings Per Share, Diluted
Earnings Per Share Reconciliation [Abstract]
Net income per common share
Statutory federal income tax rate
Tax benefit realized
Total compensation cost not yet recognized, period for recognition
Stock Options [Member]
Tax benefit relating to compensation expense recognized
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense
Cash proceeds received
Total compensation cost not yet recognized
Equipment [Member]
Furniture, fixtures and equipment
Equipment Expense
Equity Component [Domain]
Custodial Escrow Balances
Fair Value Measurements [Member]
Fair Value [Member]
Executive Officers [Member]
Asset (Liability) Fair Value [Abstract]
Asset Class [Axis]
Liability Class [Axis]
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Discount rate
Measurement Frequency [Axis]
FAIR VALUE DISCLOSURES [Abstract]
Total Change in Fair Values Included in Current Period Earnings
Fair Value, Option, Changes in Fair Value, Gain (Loss)
Measurement Basis [Axis]
Asset Class [Domain]
Assets and liabilities measured at fair value
Fair Value, Measurements, Nonrecurring [Member]
Assets and liabilities measured at fair value [Abstract]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Hierarchy [Domain]
Changes in fair value for financial assets [Abstract]
FAIR VALUE DISCLOSURES
Fair Value Disclosures [Text Block]
Fair Value by Liability Class [Domain]
Quantitative information about Level 3 fair value measurements measured on a non-recurring basis
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair values and recorded book balances
Fair Value, by Balance Sheet Grouping [Table Text Block]
Concentration of risk loans receivable
Fair Value Measurement [Domain]
Significant Unobservable Inputs (Level 3) [Member]
Significant Unobservable Inputs, (Level 3) [Member]
Fair Value, Inputs, Level 3 [Member]
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Quoted Prices in Active Markets for Identical Assets, (Level 1) [Member]
Significant Other Observable Inputs (Level 2) [Member]
Significant Other Observable Inputs, (Level 2) [Member]
Difference
Fair Value, Option, Aggregate Differences, Loans and Long-term Receivables
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Changes in fair value for financial assets
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair Value, Option, Quantitative Disclosures [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Federal Home Loan Bank and Federal Reserve Bank stock, at cost
Federal Home Loan Bank and Federal Reserve Bank Stock
Federal Home Loan Bank Stock and Federal Reserve Bank Stock
FHLB advances terminated
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Repayment and Penalties
FDIC deposit insurance
2016, Amount
Advances from Federal Home Loan Bank ("FHLB") [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Federal Home Loan Bank, Advances, Fiscal Year Maturity [Abstract]
Federal home loan bank stock
Unused borrowing capacity with FHLB
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds
2018, Amount
Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Three
Federal Reserve Bank Advances [Member]
Federal Reserve Bank Advances [Member]
2019, Amount
2017, Rate
2020, Rate
2017, Amount
Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate of Amounts Due [Abstract]
2020, Amount
2018, Rate
Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate, Two to Three Years from Balance Sheet Date
2016, Rate
Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate of Amounts Due within One Year of Balance Sheet Date
Title insurance fees
Fees and Commissions, Other
Service charges on deposit accounts
LOANS HELD FOR SALE
Finance, Loan and Lease Receivables, Held-for-sale, Policy [Policy Text Block]
Liabilities [Abstract]
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Assets [Abstract]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
FAIR VALUES OF FINANCIAL INSTRUMENTS
Financial Instruments Disclosure [Text Block]
Financial Instrument [Axis]
FAIR VALUES OF FINANCIAL INSTRUMENTS [Abstract]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90+ and Still Accruing
Loans not Past Due
Financing Receivable, Recorded Investment, Current
Total
Class of Financing Receivable, Type [Axis]
Class of Financing Receivable, Type [Axis]
Financing Receivable, Modifications [Line Items]
Financing Receivables, Period Past Due [Axis]
Loans Past Due, 90+ days [Member]
Recoveries credited to allowance
Loans Past Due, 60-89 days [Member]
Individually evaluated for impairment
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans charged against the allowance
Financing Receivable, Allowance for Credit Losses, Write-downs
Financing Receivable, Recorded Investment [Line Items]
Analysis of allowance for loan losses by portfolio segment [Roll Forward]
Non-Accrual
Recorded Balance
Financing Receivable, Modifications, Subsequent Default, Recorded Investment
Financing Receivable Portfolio Segment [Axis]
Financing Receivable Portfolio Segment [Axis]
Number of contracts
Financing Receivable, Modifications, Subsequent Default, Number of Contracts
Collectively evaluated for impairment
Pre-modification recorded balance
Financing Receivable, Modifications, Pre-Modification Recorded Investment
Summary of loan ratings by loan class
Financing Receivable Credit Quality Indicators [Table Text Block]
Financing Receivables, Period Past Due [Domain]
Allowance for loan losses and recorded investment in loans by portfolio segment [Abstract]
Reclassification to loans held for sale
Financing Receivable, Reclassification to Held-for-sale
Financing Receivable, Impaired [Line Items]
Post-modification recorded balance
Financing Receivable, Modifications, Post-Modification Recorded Investment
Balance at beginning of period
Balance at end of period
Financing Receivable, Allowance for Credit Losses
Number of contracts
Financing Receivable, Modifications, Number of Contracts
Loans Not Past Due [Member]
Class of Financing Receivable, Type [Domain]
Collectively evaluated for impairment
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment
Individually evaluated for impairment
Financing Receivable Portfolio Segment [Domain]
Financing Receivable Portfolio Segment [Domain]
Loans Past Due, 30-59 days [Member]
Charge offs due to troubled debt restructurings
2022 and thereafter
2018
Total
Finite-Lived Intangible Assets, Net
Accumulated Amortization
2017
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months
Other Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount
Estimated useful lives
2021
Summary of estimated core deposit intangible amortization [Abstract]
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2020
2019
Fixed Income Interest Rate [Member]
Other real estate and repossessed assets
Other real estate and repossessed assets
Foreign Government [Member]
Gain on securities [Member]
Gain (Loss) on Investments [Member]
Net gains on securities
Gain on securities
Net gains on securities
Gain on extinguishment of debt
Gain on extinguishment of debt
Gains on extinguishment of debt
Net (gains) losses on other real estate and repossessed assets
Gains (Losses) on Sales of Other Real Estate
Net gains (losses) on assets
INTANGIBLE ASSETS [Abstract]
Hedging Relationship [Domain]
Hedging Designation [Axis]
Hedging Designation [Domain]
Impaired loans
Unpaid Principal Balance, with an allowance recorded
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance
Recorded Investment, with an allowance recorded
Impaired Financing Receivable, with Related Allowance, Recorded Investment
Recorded Investment, with no related allowance recorded
Impaired Financing Receivable, with No Related Allowance, Recorded Investment
Interest Income Recognized
Impaired Financing Receivable, Interest Income, Accrual Method
Unpaid Principal Balance
Average Recorded Investment
Average Recorded Investment, with No Related Allowance
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment
Average Recorded Investment, with Related Allowance
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment
Impaired Loans by class [Abstract]
Impaired Financing Receivable, Recorded Investment [Abstract]
Related Allowance
Impaired Financing Receivable, Related Allowance
Interest Income Recognized, with No Related Allowance
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method
Recorded Investment
Impaired Financing Receivable, Recorded Investment
Unpaid Principal Balance, with no related allowance recorded
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance
Interest Income Recognized, with Related Allowance
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method
INCOME TAX [Abstract]
Income Statement Location [Axis]
Equity in undistributed net income of subsidiaries
Income (Loss) from Equity Method Investments
Income Before Income Tax
Income (Loss) Before Income Tax and Equity in Undistributed Net Income of Subsidiaries
Total reclassifications before tax
Income Statement Location [Domain]
Income Approach [Member]
Equity in undistributed net income of subsidiaries
Income (Loss) from Equity Method Investments, Net of Dividends or Distributions
INCOME TAX
Income Tax Disclosure [Text Block]
Income tax expense
Income tax benefit
Income tax expense
Income tax expense (benefit)
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
CONDENSED STATEMENTS OF OPERATIONS [Abstract]
Statutory rate applied to income before income tax
Income tax expense (benefit) [Abstract]
Reconciliation of income tax benefit [Abstract]
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Net change in valuation allowance
Non-deductible meals, entertainment and memberships
Other, net
INCOME TAXES
Income Tax, Policy [Policy Text Block]
Income taxes
Tax-exempt income
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount
Deferred income tax expense
Deferred income tax benefit
Increase (Decrease) in Deferred Income Taxes
Increase (decrease) in accrued expenses and other liabilities
Increase (decrease) in accrued expenses and other liabilities
Net increase in total deposits
Fair value option - Loans held for sale [Abstract]
Increase (Decrease) in Loans Held-for-sale [Abstract]
Deferred loan fees
Increase (Decrease) in Loans, Deferred Income
Increase in accrued income and other assets
Decrease in accrued income and other assets
Increase (Decrease) in Other Operating Assets
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Effect of stock options (in shares)
INTANGIBLE ASSETS
Intangible Assets Disclosure [Text Block]
Amortized intangible assets - core deposits [Abstract]
OTHER INTANGIBLE ASSETS
Intangible Assets, Finite-Lived, Policy [Policy Text Block]
Other intangibles
Intangible assets
INTEREST EXPENSE
Interest Expense [Abstract]
Interest and fees on loans
INTEREST INCOME
Total Interest Income
Interest income
Interest and Dividend Income, Operating
Total Interest Expense
Interest expense
Interest expense
Interest on securities
Accrued interest payable
Interest expense on FHLB advances
Summary of interest expense on deposits [Abstract]
Interest Expense, Deposits [Abstract]
Other borrowings
Interest Expense, Borrowings
Total
Deposits
Interest Expense, Deposits
Time deposits of $100,000 or more
Interest Expense, Time Deposits, $100,000 or More
Savings and interest bearing checking
Interest Expense, NOW Accounts, Money Market Accounts, and Savings Deposits
Net Interest Income
Interest Income (Expense), Net
Interest Income [Member]
Time deposits under $100,000
Interest Expense, Time Deposits, Less than $100,000
Net Interest Income After Provision for Loan Losses
Interest Income (Expense), after Provision for Loan Loss
Taxable
Interest-Rate Cap Agreement [Member]
Interest
Tax-exempt
Accrued interest receivable
Time
Interest Expense [Member]
Interest Rate Swap [Member]
Interest Rate Swap [Member]
Interest bearing deposits
Interest-bearing Deposits in Banks and Other Financial Institutions
Rate-Lock Mortgage Loan Commitments [Member]
Internal Credit Assessment [Domain]
Internal Credit Assessment [Axis]
SECURITIES
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
SECURITIES [Abstract]
Amortized cost and fair value of securities available for sale by contractual maturity
Investment in subsidiaries
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures
Subordinated debentures
Subordinated debentures
Subordinated Debentures
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Compensation and employee benefits
Land [Member]
LEASES [Abstract]
LEASES
Leases of Lessee Disclosure [Text Block]
Total Liabilities
Liabilities
Total Liabilities and Shareholders' Equity
Total Liabilities and Shareholders' Equity
LIABILITIES AND SHAREHOLDERS' EQUITY
LIABILITIES AND SHAREHOLDERS' EQUITY [Abstract]
Liabilities and Equity [Abstract]
Liabilities [Abstract]
Liabilities, Fair Value Disclosure [Abstract]
Litigation Status [Axis]
Litigation Status [Domain]
Repayments
Loans and Leases Receivable, Related Parties, Proceeds
Total ending allowance balance
Allowance for loan losses
Loans and Leases Receivable, Allowance
Installment
ALLOWANCE FOR LOAN LOSSES
Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]
Net of deferred loan fees
Loans [Abstract]
Loans and Leases Receivable, Other Information [Abstract]
New loans and advances
Loans [Abstract]
Loans
Net Loans
Loans and Leases Receivable, Net Amount
Summary of loans and leases receivable [Roll Forward]
Loans and Leases Receivable, Related Parties [Roll Forward]
Total Loans
Total Loans
Total Loans
Loans and Leases Receivable, Net of Deferred Income
Balance at end of year
Balance at beginning of year
Loans and Leases Receivable, Related Parties
Loans held for sale, carried at fair value
Loans held for sale
Loans held for sale
Loans Held For Sale [Member]
Contractual Principal
Loans Receivable Held-for-sale, Amount
LOANS AND PAYMENT PLAN RECEIVABLES
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]
Commercial
Commercial loans
Loans Receivable, Gross, Commercial, Financial and Agricultural
Commercial and industrial
Total
Long-term Debt
Summary of repayments of FHLB Advances [Abstract]
2019
Long-term Debt, Maturities, Repayments of Principal in Year Three
2018
Long-term Debt, Maturities, Repayments of Principal in Year Two
2020
Long-term Debt, Maturities, Repayments of Principal in Year Four
2017
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months
Loss Contingencies [Table]
Loss Contingencies [Line Items]
Loss Contingency Nature [Axis]
Loss Contingency, Nature [Domain]
Estimate of reasonably possible loss
Major Types of Debt and Equity Securities [Axis]
Major Types of Debt and Equity Securities [Domain]
Trust preferred securities
Marketable Securities [Table Text Block]
SECURITIES
Marketable Securities, Policy [Policy Text Block]
Net gains on securities
Securities
Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments
Summary of the maturity of time deposits [Abstract]
Maturities of Time Deposits [Abstract]
Maximum [Member]
Minimum [Member]
Mortgage loans in process of foreclosure
Mortgage Loans on Real Estate, Loan Type [Domain]
Weighted average interest rate
Mortgage Loans on Real Estate, Loan Type [Axis]
Private Label Mortgage-Backed [Member]
Vehicle service contract counterparty reserve [Roll Forward]
Movement in Valuation Allowances and Reserves [Roll Forward]
Non-performing TDR's [Member]
CASH FLOW FROM FINANCING ACTIVITIES
CASH FLOW USED IN FINANCING ACTIVITIES [Abstract]
Net Cash Used in Investing Activities
Net Cash Provided by (Used in) Investing Activities, Continuing Operations
Net Cash From Financing Activities
Net Cash Provided by (Used in) Financing Activities, Continuing Operations
Net Cash From Operating Activities
Net Cash Provided by (Used in) Operating Activities, Continuing Operations
CASH FLOW USED IN INVESTING ACTIVITIES
CASH FLOW FROM INVESTING ACTIVITIES [Abstract]
Net income
Net Income
Total reclassifications for the period, net of tax
Net Income (Loss) Attributable to Parent
Net income per common share [Abstract]
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Net income
New Accounting Pronouncements or Change in Accounting Principle [Table]
ADOPTION OF NEW ACCOUNTING STANDARDS
New Accounting Pronouncements, Policy [Policy Text Block]
Mortgage loans servicing rights, change in retained deficit, net of tax
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets
New Accounting Standrads [Abstract]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Non-interest bearing
NON-INTEREST INCOME
NON-INTEREST EXPENSE
OTHER NON-INTEREST INCOME [Abstract]
Total Non-interest Expense
Noninterest Expense
Total Non-Interest Income
Noninterest Income
Other
Total other non-interest income
Noninterest Income, Other Operating Income
Promissory Note [Member]
Number of reportable segments
No Hedge Designation [Member]
No Hedge Designation [Member]
Other comprehensive income (loss) before reclassifications
OCI, before Reclassifications, Net of Tax, Attributable to Parent
Occupancy, net
COMMITMENTS TO EXTEND CREDIT AND RELATED FINANCIAL INSTRUMENTS
Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block]
Open tax year
OPERATING INCOME [Abstract]
Total
Operating Leases, Future Minimum Payments Due
OPERATING EXPENSES [Abstract]
2018
Operating Leases, Future Minimum Payments, Due in Two Years
Total Operating Expenses
Operating Expenses
Summary of future minimum lease payments under non-cancelable operating leases [Abstract]
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2017
Operating Leases, Future Minimum Payments Due, Next Twelve Months
2022 and thereafter
Operating Leases, Future Minimum Payments, Due Thereafter
Rental expense on operating leases
Operating Leases, Rent Expense, Net
Total
Operating Loss Carryforwards
2019
Operating Leases, Future Minimum Payments, Due in Three Years
Total Operating Income
Operating Income (Loss)
2020
Operating Leases, Future Minimum Payments, Due in Four Years
2021
Operating Leases, Future Minimum Payments, Due in Five Years
Income tax expense (benefit)
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax
Other real-estate [Abstract]
Income tax expense
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax
Reclassification adjustments for gains included in earnings
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax
Other Real Estate [Roll Forward]
Unrealized gains recognized in other comprehensive income (loss) on derivative instruments
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax
Unrealized gains (losses) recognized in other comprehensive income (loss) on securities available for sale, net of tax
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax
Increases to credit losses on securities for which OTTI was previously recognized
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Other than temporary impairment loss on securities
Securities impairment recognized in earnings
Net impairment loss recognized in earnings
OTTI changes recorded in earnings
Total impairment loss
Net impairment loss recognized in earnings
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities
Balance at beginning of period
Balance at end of period
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held
Loss recognized in other comprehensive income (loss)
Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Loss, before Tax, Including Portion Attributable to Noncontrolling Interest
Additions to credit losses on securities for which no previous OTTI was recognized
Unrealized gains (losses) recognized in other comprehensive income (loss) on securities available for sale
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax
Securities available for sale
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax, [Abstract]
Other borrowings
Total
Other borrowings
Other Borrowings
Accrued income and other assets
Accrued income and other assets
Unrealized gains recognized in other comprehensive income (loss) on derivative instruments, net of tax
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax
Derivative instruments
Unrealized gain (loss) arising during period
Other investments
Administrative and other expenses
Accrued expenses and other liabilities
Accrued expenses and other liabilities
Other
Other Noninterest Expense
Other income
Other Operating Income
Other Assets [Member]
Other comprehensive income (loss)
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent [Abstract]
Other Liabilities [Member]
Other comprehensive income (loss)
Other comprehensive income (loss)
Net current period other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Performing TDR's [Member]
Aging analysis of loans by class
Past Due Financing Receivables [Table Text Block]
Parent Company [Member]
Parent Company [Member]
Disbursements for loans held for sale
Payments for Origination of Mortgage Loans Held-for-sale
Share based compensation withholding obligation
Share based compensation withholding obligation
Payments Related to Tax Withholding for Share-based Compensation
Net increase in portfolio loans (loans originated, net of principal payments)
Payments for (Proceeds from) Loans and Leases
Redemptions of trust preferred securities at par value
Purchases of securities available for sale
Payments to Acquire Available-for-sale Securities
Dividends paid
Payments of Dividends
Repurchase of common stock
Payments for Repurchase of Common Stock
Purchase of Federal Reserve Bank stock
Payments to Acquire Federal Reserve Bank Stock
Capital expenditures
Payments to Acquire Property, Plant, and Equipment
Pending Litigation [Member]
Performance stock units [Member]
Plan Name [Domain]
Plan Name [Axis]
Portion at Fair Value Measurement [Member]
Portion at Fair Value Measurement [Member]
Preferred stock, shares issued (in shares)
Preferred Stock, Shares Issued
Preferred stock, par value (in dollars per share)
Preferred Stock, No Par Value
Preferred stock, shares authorized (in shares)
Preferred Stock, Shares Authorized
Preferred stock, shares outstanding (in shares)
Preferred Stock, Shares Outstanding
Preferred stock, no par value, 200,000 shares authorized; none issued or outstanding
Preferred Stock, Value, Issued
President [Member]
RECLASSIFICATION
Net decrease in other borrowings
Cash payment for litigation settlement relating to collection of vehicle service contracts counterparty receivables
Proceeds from issuance of common stock
Proceeds from issuance of common stock
Proceeds from Federal Home Loan Bank advances
Proceeds from Federal Home Loan Bank Borrowings
Proceeds from bank-owned life insurance
Proceeds from sales of loans held for sale
Proceeds from Sale of Loans Held-for-sale
Proceeds from the sale of securities available for sale
Proceeds from the sale of other real estate and repossessed assets
Proceeds from the sale of property and equipment
Legal and professional
Estimated useful lives
Property, Plant and Equipment, Useful Life
Property, Plant and Equipment, Type [Domain]
PROPERTY AND EQUIPMENT
PROPERTY AND EQUIPMENT [Abstract]
Property and Equipment [Abstract]
Summary of property and equipment
Property, Plant and Equipment [Table Text Block]
Property and equipment, net
Property and equipment, Net
Property, Plant and Equipment [Line Items]
Property and equipment, Gross
Property, Plant and Equipment, Type [Axis]
PROPERTY AND EQUIPMENT
Property, Plant and Equipment Disclosure [Text Block]
Provision for loan losses
Provision for loan losses
Additional provision for loan losses on impaired loans
Range [Axis]
Range [Domain]
OTHER REAL ESTATE [Abstract]
Additions charged to expense
Real Estate Owned, Valuation Allowance, Provision
Real Estate Owned Valuation Allowance [Roll Forward]
Direct write-downs upon sale
Real Estate Owned, Valuation Allowance, Amounts Applied
OTHER REAL ESTATE
Real Estate Owned [Text Block]
Balance at end of year
Balance at beginning of year
Other real estate, valuation allowance
Real Estate Owned, Valuation Allowance
Credit losses recognized in earnings on securities available for sale
LOANS AND PAYMENT PLAN RECEIVABLES [Abstract]
Amounts reclassified from AOCL
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification Out Of Accumulated Other Comprehensive Income [Table]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Summary of reclassifications out of each component of AOCL
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
Changes in unrecognized tax benefits [Roll Forward]
REGULATORY MATTERS
Regulatory Capital Requirements under Banking Regulations [Text Block]
RELATED PARTY TRANSACTIONS
Related Party Transactions Disclosure [Text Block]
Directors and executive officers deposit
Related Party Transaction [Line Items]
RELATED PARTY TRANSACTIONS [Abstract]
Payments of Federal Home Loan Bank Advances
Repayments of Federal Home Loan Bank Borrowings
Redemption of subordinated debt
Repayments of Subordinated Debt
Counterparty Name [Domain]
Residential Real Estate [Member]
Residential First Mortgages [Member]
Residential Mortgage [Member]
Mortgage [Member]
Mortgage [Member]
Cumulative Retrospective Adjustments [Member]
Restatement Adjustment [Member]
RESTRICTIONS ON CASH AND DUE FROM BANKS
Restricted Assets Disclosure [Text Block]
Restricted Stock [Member]
RESTRICTIONS ON CASH AND DUE FROM BANKS [Abstract]
Accumulated Deficit [Member]
Accumulated deficit
LOAN REVENUE RECOGNITION
CONCENTRATIONS OF CREDIT RISK [Abstract]
Exercisable, Aggregate Intrinsic Value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
Vested and Expected to Vest, Weighted-Average Remaining Contractual Term
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term
Outstanding, Weighted-Average Remaining Contractual Term
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Exercisable, Weighted-Average Remaining Contractual Term
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Estimated amortization of other intangible assets
Scenario, Unspecified [Domain]
Originally Presented [Member]
Scenario, Previously Reported [Member]
Schedule of Financing Receivable, Allowance for Credit Losses [Table]
Composition of income tax expense (benefit)
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Schedule of accumulated other comprehensive loss (AOCL), net of tax
Summary of deferred tax assets and deferred tax liabilities
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Summary of non-vested restricted stock and stock units and transactions
Schedule of Finite-Lived Intangible Assets [Table]
Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table]
Summary of outstanding stock option grants and transactions
Information regarding options exercised
Loans on non-accrual status and past due more than 90 days
Other intangible assets, net of amortization
Schedule of Financing Receivable, Troubled Debt Restructurings [Table]
Summary of loans to directors and executive officers
Schedule of Related Party Transactions [Table Text Block]
Schedule of Financing Receivables Past Due [Table]
CONDENSED STATEMENTS OF FINANCIAL CONDITION
Condensed Balance Sheet [Table Text Block]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of changes in unrecognized tax benefits
CONDENSED STATEMENTS OF CASH FLOWS
Condensed Cash Flow Statement [Table Text Block]
Reconciliation of basic and diluted loss per share
Analysis of allowance for loan losses by portfolio segment
Securities available for sale
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]
Schedule of Impaired Financing Receivable [Table]
Gains and losses realized on sale of securities available for sale
Schedule of Realized Gain (Loss) [Table Text Block]
Summary of future minimum lease payments under non-cancelable operating leases
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Investments in a continuous unrealized loss position
CONDENSED STATEMENTS OF OPERATIONS
Condensed Income Statement [Table Text Block]
Reconciliation of income tax benefit computed by applying the statutory federal income tax rate
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table]
Schedule of Available-for-sale Securities [Table]
Schedule of Condensed Financial Statements [Table]
Schedule of Available-for-sale Securities [Line Items]
Actual capital amounts and ratios
Schedule of Fair Value, Off-balance Sheet Risks [Table]
Schedule of Federal Home Loan Bank Advances, by Branch of FHLB Bank [Table]
Financial instruments with off-balance sheet risk
Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Condensed consolidated statement of financial position to reflect cumulative effect of adjustments
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]
Schedule of Short-term Debt [Table]
Schedule of Related Party Transactions, by Related Party [Table]
Schedule of information regarding subordinated debentures
Schedule of Subordinated Borrowing [Table Text Block]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Axis]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table]
Fair value of derivative instruments
Schedule of Stock by Class [Table]
Loan portfolios
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Effect of derivative financial instruments on consolidated statement of operation
Operating Segments [Abstract]
Segment Reporting [Abstract]
OPERATING SEGMENTS
Geographical [Domain]
Originated servicing rights capitalized
Capitalized mortgage loan servicing rights
Balance at end of year
Balance at beginning of year
Fair value of capitalized mortgage loan servicing rights
Average discount rate
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate
Change in valuation allowance
Mortgage loan servicing, net
Information regarding options exercised [Abstract]
Share based compensation
Share-based Compensation
Forfeited (in dollars per share)
Vesting period
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Weighted-Average Grant Date Fair Value [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Exercised (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Granted (in dollars per share)
Number of Shares [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross
Expired (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares approved for grant (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized
Forfeited (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
Average Exercise Price [Roll Forward]
Granted (in shares)
Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Expired (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period
Outstanding, ending balance (in dollars per share)
Outstanding, beginning balance (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Outstanding, beginning balance (in shares)
Outstanding, ending balance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Exercisable, period end (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Exercisable, period end (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Weighted-Average Remaining Contractual Term (Years) [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Intrinsic value
Vested (in dollars per share)
Vested (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Outstanding, ending balance (in dollars per share)
Outstanding, beginning balance (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Outstanding, beginning balance (in shares)
Outstanding, ending balance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Vested and expected to vest, period end (in dollars per share)