Hedge gain reclassified as interest expense related to next twelve months Cash Flow Hedge Gain Reclassified to Interest Expense in Next Twelve Months Cash Flow Hedge Gain Reclassified to Interest (Expense) in Next Twelve Months Derivative Average Swap Interest Pay Rate Weighted average pay rate Derivative Average Swap Interest Pay Rate. Derivative Average Swap Interest Receive Rate Weighted average receive rate Derivative Average Swap Interest Receive Rate. Strike Rate Based on Three Month LIBOR Strike rate based on three month LIBOR Strike Rate Based on Three Month LIBOR. Realized Gains on Available for Sale Securities after Tax Amount Realized Gains on Available for Sale Securities After Tax Amount. Less: Realized gains (losses) Unrealized Losses on Cash Flow Hedges after Tax Amount Unrealized gains on cash flow hedges Unrealized Losses on Cash Flow Hedges after Tax Amount. Award Type [Axis] Less: Realized gains Realized Gains on Cash Flow Hedges after Tax Amount. Realized Gains on Cash Flow Hedges after Tax Amount Realized Gains on Available for Sale Securities Tax Expense Benefit Less: Realized gains (losses) Realized Gains on Available for Sale Securities Tax Expense Benefit. Realized Gains on Cash Flow Hedges Tax Expense Benefit Less: Realized gains Realized Gains on Cash Flow Hedges Tax Expense Benefit. Other Comprehensive Income (Loss) Cash Flow Hedges before Reclassification Adjustments Tax Unrealized losses on cash flow hedges, net Other Comprehensive Income Loss Cash Flow Hedges before Reclassification Adjustments Tax. Realized Gains on Available for Sale Securities Pre Tax Less: Realized gains (losses) Realized gains on available for sale securities Pre Tax. Amendment Flag Realized Gains on Cash Flow Hedges Pre Tax Less: Realized gains Realized Gains on Cash Flow Hedges Pre Tax. Unrealized Losses on Cash Flow Hedges Net Pre Tax Amount Total derivatives and hedging activities Unrealized Losses on Cash Flow Hedges Net Pre-Tax Amount, Accumulated Other Comprehensive Income (Loss) Available for Sale Securities Adjustment Tax Effect Tax effect Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Tax Effect. Available for Sale Securities Change in Unrealized Gains Net of Tax Net-of-tax amount Available For Sale Securities Change In Unrealized Gains Net Of Tax. Other Comprehensive Income Unrealized Gain (Loss) on Cash Flow Hedges Arising During Period before Tax Other Comprehensive Income Unrealized Gain Loss On Cash Flow Hedges Arising During Period Before Tax. Unrealized loss on cash flow hedges Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges Tax Expense Benefit Tax effect Unrealized Gain Loss On Interest Rate Cash Flow Hedges Tax Expense Benefit. Unrealized Net Gains (Losses) on Securities and Derivative Instruments Used in Cash Flow Hedges Net of Taxes Net-of-tax amount Unrealized Net Gains Losses On Securities And Derivative Instruments Used In Cash Flow Hedges Net Of Taxes Preferred Stock [Table] Preferred Stock. Exercise Price of Warrants TARP Warrant exercisable price Exercise Price Of Warrants. Preferred Stock Redemption Price Percentage of Issue Price Series A preferred stock redemption price, percentage of issue price Preferred Stock Redemption Price Percentage of Issue Price. Warrants Converted to Purchase of Common Stock Warrants Converted To Purchase Of Common Stock Number of shares to be purchased by common stock warrant Cumulative Preferred Stock Issued Cumulative Preferred Stock Issued. Cumulative perpetual preferred stock shares issued Preferred Stock [Line Items] Preferred Stock Preferred Stock Loan, Acquisition and Collection Expense Loan acquisition and collection expense Represents the amount of expenses incurred during the period for the amount of loan acquisition and collection expense. Commitments To Originate Loans Residential Real Estate Mortgages Residential real estate mortgages Commitments to Originate Loans Residential Real Estate Mortgages Commitments To Originate Loans Construction Loans Construction loans Commitments to Originate Loans Construction Loans Current Fiscal Year End Date Line of Credit Facility Term Term of outstanding letters of credit Represents the term of the credit facility arrangement made by the entity. Commitments to Originate Consumer Loans Consumer Commitments to Originate Consumer Loans Commitments to Investment in Future Real Estate Investment Commercial real estate mortgages Commitments To Investment In Future Real Estate Investment Commitments to Originate Loans Commercial Business Loans Commercial business loans Commitments to Originate Loans Commercial Business Loans Commitments to Originate Mortgage Loans Commitments To Originate Mortgage Loans Commitment to originate loans Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses Portion of Unused Lines of Credit Facility Remaining Borrowing Capacity Commercial Paper Programs under Negotiated Terms Unused lines of credit Portion Of Unused Lines Of Credit Facility Remaining Borrowing Capacity Commercial Paper Programs Under Negotiated Terms Liability Related to Standby Letters Of Credit Standby letters of credit Liability Related To Standby Letters Of Credit Construction Loans Unadvanced Portion Unadvanced portions of construction loans Construction Loans Unadvanced Portion Document Information [Table] Number of Transactions in which Customer Lists and Fixed Assets Sold Number of separate transactions in which customer list and certain fixed assets sold Represents the number of separate transactions in which customer list and certain fixed assets sold by the entity. Maximum Potential (Loss) Financial and Standby Letter of Credit Obligation Maximum loss from financial and standby letter of credit obligation The greatest amount of obligation to be recognized by the company for financial and standby letters of credit issued to guarantee the performance of a customer or third party. Long Term Debt Loan to Value Ratio Maximum Maximum loan to value ratio allowed for loan origination (as a percent) This element represents the maximum ratio of mortgage amount divided by the value of the property that the Company will accept for a loan that will be originated. Document Period End Date Commitments to Lend [Table Text Block] Tabular disclosure of the commitment to originate loans and extend credit under unused credit lines. Financial Instruments with Contract Amounts Represent Credit Risk Troubled Debt Restructuring Payment Default Number of Days Number of days a TDR payment is in default Represents the number of days payments are past due before a TDR is consider to be in default. Loan by risk rating Represents the amount of loan and leases classified by the internal credit quality grade which are included in comprehensive analysis. Loans and Leases Receivable Risk Rating The cash outflow for redemption of preferred stock and warrants. Payments for Redemption of Preferred Stock and Warrants Redemption of preferred stock and warrants Redemption of Preferred Stock and Warrants Redemption of preferred stock and warrants Represents redemption amount of currently redeemable preferred stock and warrants. Redemption of Preferred Stock and Warrants, Shares Redemption of preferred stock and warrants (in shares) Represents the number of redeemable preferred stock and warrants. Type of Modification [Axis] Information related to troubled debt restructurings by type of modification. Type of Modification [Domain] Specific type of modification. Notional amount Derivative, Notional Amount Extended Maturity [Member] Extended maturity Represents information pertaining to extended maturity modification by troubled debt restructurings related to financing receivables. Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Adjusted interest rate Represents information pertaining to adjusted interest rate modification by troubled debt restructurings related to financing receivables. Adjusted Interest Rate [Member] Rate and maturity Represents information pertaining to rate and maturity modification by troubled debt restructurings related to financing receivables. Rate and Maturity [Member] Court ordered concession Represents information pertaining to modification due to court ordered concession by troubled debt restructurings related to financing receivables. Court Ordered Concession [Member] Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Accretable Yield Other Changes Other changes Represents the other changes in the aggregate excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan for loans not accounted for as debt securities. This relates to loans not accounted for as a debt security, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition that the investor will be unable to collect all contractually required payments receivable. Schedule of Fair Value Hedge Ineffectiveness [Table Text Block] Schedule of amounts recognized in income related to both hedge ineffectiveness and amounts excluded from effectiveness testing Tabular disclosure of amounts excluded from effectiveness testing. Warrants Repurchased for Number of Shares of Common Stock Number of shares repurchased by common stock warrant Represents the number of shares of common stock issued on repurchase of warrants. Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Unpaid Principal Unpaid principal balance The undiscounted amount of principal on loans with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. Entity Information [Line Items] Entity Information [Line Items] Accretable Yield. Accretable Yield Accretable yield Nonaccretable Difference Nonaccretable difference Nonaccretable Difference. Loans Acquired The number of loans acquired during the period. Loans purchased Financing Receivable Recorded Investment 90 Days Past Due and Nonaccrual Past Due 90 Days or More-Nonaccrual Financing Receivable Recorded Investment 90 Days Past Due and Nonaccrual. Troubled Asset Relief Capital Purchase Program [Text Block] Troubled Asset Relief Capital Purchase Program The entire disclosure of the entity's participation in the Troubled Asset Relief Capital Purchase Program. Troubled Asset Relief Capital Purchase Program Document Document and Entity Information Voting Common Stock [Member] Voting Common Stock [Member] Voting common stock Voting Common Stock Available-for-sale Securities, Gross Unrealized Gains Gross Unrealized Gains Gain (Loss) on Sale of Loans Held for Sale Gain on sales of loans held for sale The gain (loss) resulting from the sale of loans held for sale. Gain on sales of loans held for sale Gain (Loss) on Sale of Loans Held for Investment Gain on sales of portfolio loans The gain (loss) resulting from the sale of loans held for investment. Gain on sales of portfolio loans Gain (Loss) on Sale of Foreclosed Assets Gain recognized on repossessed collateral, net The net gain (loss) resulting from the sale of foreclosed assets. Gain on sale or impairment of repossessed collateral, net Transfer of Loans to Foreclosed Assets Transfers from loans to repossessed collateral The value of loans transferred to foreclosed assets in a non-cash transaction. Available for Sale Securities Debt Maturities Fair Value Total Available-for-sale securities debt maturities, Fair Value Available For Sale Securities Debt Maturities Fair Value Total. Mortgage Backed Securities Fair Value Mortgage-backed securities, Fair Value Mortgage Backed Securities Fair Value. Available for Sale and Held to Maturity Mortgage Backed Securities Maturities Amortized Cost Mortgage-backed securities, Amortized Cost Available For Sale And Held To Maturity Mortgage Backed Securities Maturities Amortized Cost. Troubled Debt Restructurings on Financing Receivables by Accrual Status [Table Text Block] Troubled debt restructurings by accrual status Tabular disclosure of financing receivables and troubled debt restructurings classified by accrual or non-accrual status. Schedule of Credit Impaired Loans [Table Text Block] Information related to the unpaid principal balance and carrying amounts of purchased credit impaired loans Tabular disclosure of the unpaid principal balance and carrying amount of purchased credit impaired loans. Schedule of Allowance for Loan Losses by Portfolio Segment and Impairment Methodology [Table Text Block] Allowance for Loan Losses by Portfolio Segment and Impairment Methodology Schedule of Allowance for Loan Losses by Portfolio Segment and Impairment Methodology Table [Text Block] Troubled Debt Restructurings on Financing Receivables Recorded Investment [Table Text Block] Loans Modified in Troubled Debt Restructurings Tabular disclosure of the recorded investment in financing receivables and troubled debt restructurings. Loan Portfolio Originated [Member] Loan portfolio originated by the reporting entity. Originated Purchased Loan portfolio acquired in a transfer. Loan Portfolio Purchased [Member] Financing Receivable Modifications Number of Contracts Modified Number of Contracts Number of financing receivables that have been modified by troubled debt restructurings. Financing Receivable Modifications Subsequent Defaulted Number of Contracts Number of loans modified by TDR subsequently defaulted Represents the number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. Recorded Investment Pre-Modification Financing Receivable Modifications Pre Modification Recorded Investments. Financing Receivable Modifications Pre Modification Recorded Investments Financing Receivable Modifications Post Modification Recorded Investments Recorded Investment Post-Modification Financing Receivable Modifications Post Modification Recorded Investments. Recorded Investment Represents the amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default. Financing Receivable Modifications Subsequent Defaulted Recorded Investment Recorded investment of loans modified by TDR subsequently defaulted Trading Symbol Consumer Residential Real Estate [Member] Residential and consumer loans Loan or extension of credit for personal, family, or household use including real estate. Financing Receivable Loans Classified as Troubled Debt Restructurings that are Involved in Bankruptcy Collateral dependent impaired loans Loans for which the borrower's obligation was discharged in bankruptcy in a prior period and now considered collateral dependent impaired loans. Loans and Leases Receivable Troubled Debt Restructurings Recorded Investment Accrual Status TDRs, On Accrual Status This element represents the amount of Troubled Debt Restructurings recorded in accrual status at the reporting date. Loans and Leases Receivable Troubled Debt Restructurings Recorded Investment Nonaccrual Status TDRs, On Nonaccrual Status This element represents the amount of Troubled Debt Restructurings recorded in nonaccrual status at the reporting date. Troubled Debt Restructurings Subsequent Default Total Loans TDRs, Total This element represents the total amount of Troubled Debt Restructurings recorded at the reporting date. Share Based Compensation Arrangement by Share Based Payment Award Award Initial Vesting Percentage Restricted stock granted to a senior executive, vesting percentage Share Based Compensation Arrangement By Share Based Payment Award Award Initial Vesting Percentage. Share Based Compensation Arrangement by Share Based Payment Award Award Initial Vesting Date Restricted stock granted to a senior executive, 40% vesting date Share Based Compensation Arrangement By Share Based Payment Award Award Initial Vesting Date. Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other than Options Vesting Installments Number Restricted stock granted to a senior executive, remaining shares vesting number of annual installments Share-Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other Than Options Vesting Installments Number. Share Based Compensation Performance Based Restricted Stock Units Maximum liability payable under performance-based stock appreciation rights total Share Based Compensation Performance Based Restricted Stock Units. Option 1 [Member] Option 1 [Member] Option 1 Option 2 [Member] Option 2 [Member] Option 2 Recent Accounting Pronouncements Option 3 [Member] Option 3 [Member] Option 3 Projected Share Based Compensation Expense Year One 2013 Represents the share-based compensation expense projected for the current fiscal year. Projected Share Based Compensation Expense Year Two 2014 Represents the share-based compensation expense projected for the first fiscal year following the reporting date. 2015 Represents the share-based compensation expense projected for the second fiscal year following the reporting date. Projected Share Based Compensation Expense Year Three Projected Share Based Compensation Expense Year Four 2016 Represents the share-based compensation expense projected for the third fiscal year following the reporting date. Entity Filer Category Projected Share Based Compensation Expense Year Five 2017 Represents the share-based compensation expense projected for the fourth fiscal year following the reporting date. Projected Share Based Compensation Expense Year Total Total This element represents the total projected share-based compensation expense. Entity Registrant Name Gain on Sale of Business or Discontinued Operation Additional gain on sale of discontinued operations Gain On Sale Of Business Or Discontinued Operation Entity Central Index Key Disposal Group Including Discontinued Operation Fixed Assets Net of Accumulated Depreciation Fixed assets, net of accumulated depreciation Disposal Group Including Discontinued Operation Fixed Assets Net of Accumulated Depreciation Severance and other direct expenses Disposal Group Including Discontinued Operation Severance and Other Direct Expenses. Disposal Group Including Discontinued Operation Severance and Other Direct Expenses Estimated Fair Values of Financial Instruments [Table Text Block] Estimated Fair Value of Company's Financial Instruments Tabular disclosure of the fair values of financial instruments and their measurement by the level in the fair value hierarchy. Fair Value Assets and Liabilities Measured on Recurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring Basis [Table] Entity Common Stock, Shares Outstanding Interest Rate Caps [Member] Interest rate caps Interest Rate Caps [Member] Fair Value Assets and Liabilities Measured on Recurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] Receivable Type [Axis] Fair Value Assets and Liabilities Measured on Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Table] Fair Value Assets and Liabilities Measured on Nonrecurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items] Impaired Loans Fair Value Disclosure Impaired loans Impaired Loans Fair Value Disclosure Repossessed Collateral Repossessed collateral Repossessed Collateral Schedule of Fair Value of Financial Instruments [Table] Schedule Of Fair Value Of Financial Instruments [Table] Fair Value of Financial Instruments [Line Items] Fair Value of Financial Instruments [Line Items] Accrued Interest Receivable Fair Value Disclosure Accrued interest receivable Accrued Interest Receivable Fair Value Disclosure Structured Repurchase Agreements Due Structured repurchase agreements Structured Repurchase Agreements Due Interest Rate Swap Liabilities Carrying Amount Interest rate swaps Interest Rate Swap Liabilities Carrying Amount Capital Lease Obligations Fair Value Capital lease obligation Capital Lease Obligations Fair Value Margin Deposited with Option Clearing Corporation Margin account balance Margin Deposited With Option Clearing Corporation Gain (Loss) on Interest Rate Fair Value Hedge Ineffectiveness in Next Twelve Months Interest Income on hedge ineffectiveness related to next twelve months Gain Loss on Interest Rate Fair Value Hedge Ineffectiveness in Next Twelve Months Stock Issuance Cost Offering costs Represents the cost incurred directly with the issuance of an equity security. Document Fiscal Year Focus Document Fiscal Period Focus Document Type Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Amortization of securities, net Accretion (Amortization) of Discounts and Premiums, Investments Accretion of fair value adjustments, net Accretion Expense Accumulated Other Comprehensive Income (Loss) [Member] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive (loss) income Additional Paid in Capital Additional paid-in capital Additional Paid-in Capital [Member] Additional Paid-in Capital Adjustments to Additional Paid in Capital, Other Accretion of preferred stock (in shares) Adjustments to reconcile net income to net cash provided by (used in) operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Stock-based compensation Advances, Fair Value Disclosure FHLB advances Recoveries Allowance for Loan and Lease Losses, Recoveries of Bad Debts Allowance for Loan Losses by Portfolio Segment Allowance for Credit Losses on Financing Receivables [Table Text Block] Charge-offs Allowance for Loan and Lease Losses, Write-offs Provision (benefit) Allowance for Loan and Lease Losses, Provision for Loss, Gross Allowance for loan losses: Allowance for Loan and Lease Losses, Provision for Loss, Net [Abstract] Amortization of Intangible Assets Intangible asset amortization Amortization of intangible assets Accretion of fair value adjustments on borrowings, net Amortization of Debt Discount (Premium) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Anti-dilutive securities Assets [Abstract] Assets Financial assets: Assets Total assets Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Total securities available for sale, Fair Value Available-for-sale Securities, Fair Value Disclosure Available-for-sale securities, Fair Value Available-for-sale securities Due after one year through five years, Fair Value Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value Due within one year, Fair Value Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Available-for-sale Securities Available-for-sale securities, at fair value Available-for-sale securities Due after ten years, Amortized Cost Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Due within one year, Amortized Cost Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Unrealized (loss) gain on available-for-sale securities Available-for-sale Securities, Gross Unrealized Gain (Loss) Due after five years through ten years, Amortized Cost Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis Due after five years through ten years, Fair Value Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value Securities Available-for-Sale at Amortized Cost and Approximate Fair Values Available-for-sale Securities [Table Text Block] Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Available-for-sale Securities, Gross Unrealized Losses Gross Unrealized Losses Investment securities at fair value pledged as collateral for borrowings Available-for-sale Securities Pledged as Collateral Available-for-sale securities debt maturities, Amortized Cost Available-for-sale Securities, Debt Maturities, Amortized Cost Basis Due after ten years, Fair Value Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Due after one year through five years, Amortized Cost Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis Total securities available for sale, Amortized Cost Available-for-sale Securities, Amortized Cost Basis Available-for-sale securities, Amortized Cost Available-for-sale Securities, Gross Realized Gain (Loss) Net securities gains Net gain on sale of available-for-sale securities Net security gains Gross realized losses Available-for-sale Securities, Gross Realized Losses Gross realized losses Gross realized gains Available-for-sale Securities, Gross Realized Gains Balance Sheet Location [Axis] Balance Sheet Location [Domain] Bank Owned Life Insurance Bank owned life insurance Bank Owned Life Insurance Income Bank-owned life insurance income Bank-owned life insurance income, net Basis of Accounting [Text Block] Basis of Presentation Borrowings [Member] Borrowings Capital Lease Obligations Capital lease obligation Cash Equivalents, at Carrying Value Short-term investments Cash and Cash Equivalents, at Carrying Value Total cash and cash equivalents Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash and cash equivalents Cash and Due from Banks Cash and due from banks Net decrease in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Hedge gain reclassified as interest expense Cash Flow Hedge Gain Reclassified to Interest Expense Supplemental schedule of noncash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Summary of Purchased credit impaired loans (PCI) Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Table Text Block] Carrying amount Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net Beginning balance End balance Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Accretion Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion Cash flows expected to be collected Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Cash Flows Expected to be Collected at Acquisition Reclassifications from nonaccretable difference Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications from Nonaccretable Difference Fair value of loans acquired Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value Acquisitions Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Additions Contractually required payments receivable Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Contractually Required Payments Receivable at Acquisition Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period [Abstract] Disposals and transfers Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Disposals of Loans Class of Stock [Domain] Commercial Real Estate Commercial Real Estate Portfolio Segment [Member] Commercial Loan [Member] Commercial business Commercial Business Commercial Business Commercial Portfolio Segment [Member] Commercial Real Estate Construction Financing Receivable [Member] Construction Commercial Real Estate [Member] Commercial real estate Commercial Real Estate Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Commitments and Contingencies. Commitments and Contingencies Commitments and contingencies Common stock, outstanding Common Stock, Shares, Outstanding Common Stock, Value, Issued Common stock Common stock, issued Common Stock, Shares, Issued Common Stock, Dividends, Per Share, Declared Cash dividends declared per common share (in dollars per share) Dividend common stock, per share Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common Stock Dividends, Shares Dividends on common stock at $0.18 and $ 0.18 per share for the period ended December 31, 2012 and 2011, respectively (in shares) Other Comprehensive (Loss) Income Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive Income (Loss) Note [Text Block] Other Comprehensive (Loss) Income Consumer Consumer Portfolio Segment [Member] Consumer Loan [Member] Consumer Loans rated 9 Doubtful [Member] Deferred Compensation, Share-based Payments [Member] Unearned Restricted Stock Deferred Compensation Equity Unearned restricted stock Demand Deposit Accounts Demand Deposits Total deposits Deposits Deposits [Abstract] Deposits Deposits, Money Market Deposits Money market Deposits, Fair Value Disclosure Deposits Deposits [Member] Deposits Depreciation of premises and equipment Depreciation Interest rate caps Derivative Assets Derivative [Line Items] Derivative [Line Items] Derivative Instruments and Hedging Activities Disclosure [Text Block] Derivatives and Hedging Activities Derivative Financial Instruments, Liabilities, Fair Value Disclosure Interest rate swaps Weighted average maturity in years Derivative, Average Remaining Maturity Derivative [Table] Derivatives and Hedging Activities Variable rate basis Derivative, Description of Variable Rate Basis Number of derivative instruments held Derivative, Number of Instruments Held Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock-Based Compensation Stock-Based Compensation Discontinued Operation, Tax Effect of Discontinued Operation Income tax expense Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax Gain on sale of discontinued operations Pre-tax gain recognized Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax Income from discontinued operations Discontinued Operations Sale proceeds Disposal Group, Including Discontinued Operation, Revenue Customer lists and other intangible assets, net Disposal Group, Including Discontinued Operation, Intangible Assets, Net Gain on sale of assets of insurance division Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Discontinued Operations Dividends, Common Stock Dividends on common stock at $0.18 and $ 0.18 per share for the period ended December 31, 2012 and 2011, respectively Dividends, Preferred Stock Dividends on preferred stock Earnings Per Share, Basic [Abstract] Basic: Earnings per common share: Earnings Per Share, Diluted Net income (in dollars per share) Diluted earnings per common share Earnings Per Share, Basic, Other Disclosures [Abstract] Weighted-average shares outstanding: Earnings Per Share, Diluted [Abstract] Diluted: Diluted earnings per common share: Earnings Per Share, Basic Net income (in dollars per share) Earnings per common share Earnings Per Share [Text Block] Earnings Per Share (EPS) Earnings Per Share (EPS) Earnings per common share: Equity Component [Domain] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Measurements Fair Value Disclosures [Text Block] Fair Value Measurements Assets Measured at Fair Value on Nonrecurring Basis Fair Value Measurements, Nonrecurring [Table Text Block] Fair Value, Inputs, Level 3 [Member] Level 3 Fair Value, Inputs, Level 1 [Member] Level 1 Fair Value, Inputs, Level 2 [Member] Level 2 Subordinated Debt Obligations, Fair Value Disclosure Subordinated debentures Advances by Federal Home Loan Bank FHLB advances Federal Home Loan Bank Stock Federal Home Loan Bank stock, at cost Federal Deposit Insurance Corporation Premium Expense FDIC insurance premiums Federal Reserve Bank Stock Federal Reserve Bank stock, at cost Long-term Federal Home Loan Bank Advances Federal Home Loan Bank advances Fees and Commissions, Other Fees for other services to customers Financial Instrument [Axis] Financing Receivable Allowance [Domain] Financing Receivable, Modifications [Line Items] Financing Receivable, Modifications [Line Items] Past Due 90 Days or More-Still Accruing Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing Non-Accrual Loans Financing Receivable, Recorded Investment, Nonaccrual Status Purchased Financing Receivable, Acquired with Deteriorated Credit Quality Financing Receivable, Allowance for Credit Losses [Line Items] Financing Receivable, Allowance for Credit Losses [Line Items] Individually evaluated Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Financing Receivable, Recorded Investment [Line Items] Financing Receivable, Recorded Investment [Line Items] Purchased Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality 30-59 Days Financing Receivable, Recorded Investment, 30 to 59 Days Past Due Financing Receivables [Text Block] Loans, Allowance for Loan Losses and Credit Quality Credit Quality Indicator [Axis] Portfolio Segment [Axis] 60-89 Days Financing Receivable, Recorded Investment, 60 to 89 Days Past Due Financing Receivable, Impaired [Line Items] Financing Receivable, Impaired [Line Items] Individually evaluated Financing Receivable, Individually Evaluated for Impairment Financing Receivable, by Credit Quality Indicator [Domain] Total Current Financing Receivable, Recorded Investment, Current Commercial Loans by Risk Rating Financing Receivable Credit Quality Indicators [Table Text Block] Total Past Due Financing Receivable, Recorded Investment, Past Due Collectively evaluated Financing Receivable, Collectively Evaluated for Impairment Collectively evaluated Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Repossessed Assets Repossessed collateral, net Interest income (expense) on hedge ineffectiveness Gain (Loss) on Fair Value Hedge Ineffectiveness, Net Total gain on sale of discontinued operations Gain (Loss) on Disposition of Real Estate, Discontinued Operations Loss on sale of premises and equipment Gain (Loss) on Sale of Property Plant Equipment Income on hedge ineffectiveness Gain on Fair Value Hedge Ineffectiveness Net (gain) loss on sale of available-for-sale securities Gain (Loss) on Sale of Securities, Net Gain on sales of loans held for sale Gain (Loss) on Sales of Loans, Net Home Equity Line of Credit [Member] Home equity Interest Income Recognized Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method Average Recorded Investment Impaired Financing Receivable, with Related Allowance, Average Recorded Investment Impaired Loans Impaired Financing Receivables [Table Text Block] Interest Income Recognized Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method Recorded Investment Impaired Financing Receivable, with Related Allowance, Recorded Investment Average Recorded Investment Impaired Financing Receivable, Average Recorded Investment Unpaid Principal Balance Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance Unpaid Principal Balance Impaired Financing Receivable, Unpaid Principal Balance Recorded Investment Impaired Financing Receivable, Recorded Investment Recorded Investment Impaired Financing Receivable, with No Related Allowance, Recorded Investment Related Allowance Impaired Financing Receivable, Related Allowance Average Recorded Investment Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment Unpaid Principal Balance Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance Interest Income Recognized Impaired Financing Receivable, Interest Income, Cash Basis Method Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Discontinued operations: Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income (loss) from continuing operations before income tax expense (benefit) Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share Income from discontinued operations (in dollars per share) Income from discontinued operations CONSOLIDATED STATEMENTS OF INCOME Income (Loss) from Continuing Operations Attributable to Parent Net income (loss) from continuing operations Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share Income from discontinued operations (in dollars per share) Income from discontinued operations Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Income (Loss) from Continuing Operations, Per Basic Share Income (loss) from continuing operations (in dollars per share) Income (loss) from continuing operations Income (Loss) from Continuing Operations, Per Diluted Share Income (loss) from continuing operations (in dollars per share) Income (loss) from continuing operations Income Tax Expense (Benefit) Income tax expense (benefit) Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Net income from discontinued operations Net increase in deposits Increase (Decrease) in Deposits Interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Changes in other assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Other assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Decrease in prepaid FDIC assessment Increase (Decrease) in Other Operating Assets Information Technology and Data Processing Data processing fees Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Interest and Dividend Income, Operating [Abstract] Interest and dividend income: Interest and Fee Income, Loans and Leases Interest on loans Interest Expense Total interest expense Interest and Dividend Income, Operating Total interest and dividend income Interest Expense [Abstract] Interest expense: Interest and Dividend Income, Securities, Available-for-sale Interest on available-for-sale securities Interest Expense, Federal Home Loan Bank and Federal Reserve Bank Advances, Long-term Federal Home Loan Bank advances Interest Expense, Deposits Deposits Interest Expense, Junior Subordinated Debentures Junior subordinated debentures issued to affiliated trusts Interest Income (Expense), Net Net interest and dividend income before provision for loan losses Interest Expense, Short-term Borrowings Short-term borrowings Interest Expense, Securities Sold under Agreements to Repurchase Structured repurchase agreements Interest Expense, Lessee, Assets under Capital Lease Obligation under capital lease agreements Interest Income (Expense), after Provision for Loan Loss Net interest and dividend income after provision for loan losses Interest Rate Swap [Member] Interest rate swap Interest Rate Swap Interest Receivable Accrued interest receivable Interest-bearing Deposit Liabilities Savings and interest checking Interest Rate Cap [Member] Interest rate caps Interest Rate Caps Investment Banking, Advisory, 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Loans Non-Accrual Loans Loans Receivable Held-for-sale, Net Loans held for sale Loans held for sale Loans Held-for-sale, Fair Value Disclosure Loans and Leases Receivable, Net Amount Loans, net Loans, net Loans Receivable, Fair Value Disclosure Loans, net Loans Receivable, Net Loans: Loans Receivable, Net [Abstract] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Marketing Expense Marketing expense Maximum [Member] Maximum Minimum [Member] Minimum Agency mortgage-backed securities Mortgage-backed Securities Available-for-sale, Fair Value Disclosure Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] Agency mortgage-backed securities Non-performing Nonperforming Financing Receivable [Member] Financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Net Income (Loss) Available to Common Stockholders, Basic Net income available to common stockholders Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net Income (Loss) Attributable to Parent Net income Net income Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Operating Activities New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Recent Accounting Pronouncements Noninterest Income, Other Operating Income Other noninterest income Noninterest Income [Abstract] Noninterest income: Noninterest Expense [Abstract] Noninterest expense: Noninterest Income Total noninterest income Noninterest Expense Total noninterest expense Nonvoting Common Stock [Member] Non-voting common stock Non-voting Common Stock Number of offices Number of Stores Occupancy, Net Occupancy and equipment expense Basis of Presentation Total other comprehensive loss Other Comprehensive Income (Loss), before Tax Total other comprehensive loss Other Comprehensive Income (Loss), Net of Tax Other Assets Other assets Total available-for-sale securities Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Reclassification adjustment for net gains included in net income Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax (Gain) loss on sale or impairment of repossessed collateral, net Other Noncash Income (Expense) Total derivatives and hedging activities Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax Reclassification adjustment for net gains included in net income Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Tax Other assets - interest rate caps Other Assets, Fair Value Disclosure Income tax (benefit) expense related to other comprehensive (loss) income Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Unrealized (losses) gains on available-for-sale securities, net Other Comprehensive Income (Loss), Available-for-sale Securities, before Reclassification Adjustments, Tax Total available-for-sale securities Other Comprehensive Income (Loss), Available-for-sale Securities, Tax Reclassification adjustments for net gains included in net income Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, before Tax Reclassification adjustment for net gains included in net income Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax Total derivatives and hedging activities Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Reclassification adjustment for net gains included in net income Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax Other liabilities - interest rate swap Other Liabilities, Fair Value Disclosure Total available-for-sale securities Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax Reclassification adjustment for net gains included in net income Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax Total derivatives and hedging activities Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Total other comprehensive loss Other Comprehensive Income (Loss), Tax Change in net unrealized gain or loss on available-for-sale securities Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax Change in net unrealized gain or loss on available-for-sale securities Change in accumulated loss on effective cash flow hedges Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Interest rate swap Other Derivatives Not Designated as Hedging Instruments Liabilities at Fair Value Change in accumulated loss on effective cash flow hedges Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax Change in accumulated loss on effective cash flow hedges Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax Change in net unrealized gain or loss on available-for-sale securities Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax Change in net unrealized gain or loss on available-for-sale securities Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Interest rate caps Other Derivatives Not Designated as Hedging Instruments Assets at Fair Value Other Noninterest Expense Other noninterest expense Other Liabilities Other liabilities Other Interest and Dividend Income Other interest and dividend income Other comprehensive (loss) income, net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other comprehensive income (loss), net of tax Other comprehensive (loss) income, before tax: Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent [Abstract] Total available-for-sale securities Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax, Portion Attributable to Parent Derivatives and hedging activities: Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax, Portion Attributable to Parent [Abstract] Total derivatives and hedging activities Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax, Portion Attributable to Parent Available-for-sale securities: Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax, Portion Attributable to Parent [Abstract] Total other comprehensive (loss) income , before tax Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Past Due and Non-Accrual Loans Past Due Financing Receivables [Table Text Block] Loans rated 1- 6 Pass [Member] Amount paid to redeem shares of preferred stock Payments for Repurchase of Preferred Stock and Preference Stock Amount of warrants repurchased Payments for Repurchase of Warrants Stock offering costs Payments of Stock Issuance Costs Purchases of premises and equipment Payments to Acquire Property, Plant, and Equipment Dividends paid on preferred stock Payments of Ordinary Dividends, Preferred Stock and Preference Stock Payments to Acquire Available-for-sale Securities Purchases of available-for-sale securities Loan purchases Payments to Acquire Loans Held-for-investment Dividends paid on common stock Payments of Ordinary Dividends, Common Stock Payments to Purchase Loans Held-for-sale Originations of loans held for sale Preferred Stock, Value, Issued Preferred stock, $1.00 par value, 1,000,000 shares authorized; no shares issued and outstanding at December 31, 2012; 4,227 shares issued and outstanding at June 30, 2012; liquidation preference of $1,000 per share Preferred stock, shares authorized Preferred Stock, Shares Authorized Preferred Stock Dividends, Shares Dividends on preferred stock (in shares) Preferred Stock, Dividend Rate, Percentage Cumulative dividends rate Preferred stock, shares issued Preferred Stock, Shares Issued Preferred stock dividends and accretion Preferred Stock Dividends and Other Adjustments Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock dividends Preferred Stock Dividends, Income Statement Impact Preferred Stock, Liquidation Preference Per Share Preferred stock, liquidation preference per share (in dollars per share) Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Preferred Stock [Member] Preferred Stock Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase Repayment of structured repurchase agreements Proceeds from Divestiture of Businesses Proceeds from sale of assets of insurance division Loan originations and principal collections, net Proceeds from Loan and Lease Originations and Principal Collections Net increase (decrease) in short-term borrowings Proceeds from (Repayments of) Short-term Debt Proceeds from Issuance of Preferred Stock and Preference Stock Aggregate proceeds issuance of cumulative perpetual preferred stock Proceeds from maturities and principal payments on available-for-sale securities Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Proceeds from sales of available-for-sale securities Proceeds from Sale of Available-for-sale Securities Proceeds from life insurance benefits Proceeds from Life Insurance Policies Net proceeds from sales of loans held for sale Proceeds from Sale of Loans Held-for-sale Proceeds from sales of portfolio loans Proceeds from Sale of Loans Held-for-investment Proceeds from sales of repossessed collateral Proceeds from Sale of Foreclosed Assets Professional Fees Professional fees Property, Plant and Equipment, Net Premises and equipment, net Provision for Loan and Lease Losses Provision for loan losses Range [Axis] Range [Domain] Receivable Type [Domain] Loans, Allowance for Loan Losses and Credit Quality Regulatory stock Regulatory Assets, Noncurrent, Fair Value Disclosure Regulatory stock Regulatory Assets, Noncurrent Repayments of debt Repayments of Related Party Debt Repayment of other borrowings Repayments of Other Debt Repayment of capital lease obligation Repayments of Long-term Capital Lease Obligations Residential real estate Residential Real Estate [Member] Residential Real Estate Residential Portfolio Segment [Member] Residential Mortgage [Member] Residential real estate Residential real estate [Member] Restricted Stock [Member] Restricted stock Retained Earnings (Accumulated Deficit) Retained earnings Retained Earnings [Member] Retained Earnings Loans rated 8 Substandard [Member] Exercisable Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Exercisable Weighted Average Remaining Life Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Outstanding Weighted Average Remaining Life Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Successor [Member] Successor Short-term Debt, Fair Value Short-term borrowings Scenario, Unspecified [Domain] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Estimated Amount and Timing of Future Pre-tax Stock-based Compensation Expense Schedule of Unrecognized Compensation Cost, Nonvested Awards [Table Text Block] Schedule of Impaired Financing Receivable [Table] Assets and Liabilities Measured at Fair Value on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Stock Option Activity Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Other Comprehensive Income Schedule of Comprehensive Income (Loss) [Table Text Block] Realized Gains and Losses on Available-for-Sale Securities Schedule of Realized Gain (Loss) [Table Text Block] Schedule of Available-for-sale Securities [Table] Number of Shares Outstanding for Basic and Diluted EPS Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Average anti-dilutive Options and Warrants Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of Financing Receivables Past Due [Table] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Fair Values and Location of Derivatives Designated as Hedging Instruments Schedule of Interest Rate Derivatives [Table Text Block] Gross Unrealized Losses and Fair Values Aggregated by Investment Category and Length of Time in Continuous Unrealized Loss Position Schedule of Unrealized Loss on Investments [Table Text Block] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Summary of Sale Transactions Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Outstanding Interest Rate Caps and Swap Agreements Used to Hedge Variable Rate Debt Schedule of Derivative Instruments [Table Text Block] Information about Stock Options Outstanding Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Composition of Company Loan Portfolio Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure Structured repurchase agreements U.S. Government agency securities Securities Borrowed, Fair Value Disclosure Securities Sold under Agreements to Repurchase Structured repurchase agreements Segment, Operating Activities [Domain] Segment, Discontinued Operations [Member] NGIB Stock-based compensation Share-based Compensation Forfeited, Weighted Average Exercise Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted average grant date fair value of restricted stock granted to the senior executive Granted, shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award Stock-Based Compensation Granted, Weighted Average Exercise Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Restricted stock granted to a senior executive Exercised, Weighted Average Exercise Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Exercisable Weighted Average Exercise Price Options Exercisable, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Options Exercisable Number Options Exercisable, Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Number of shares authorized Forfeited, shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Options outstanding at end of period, Weighted Average Exercise Price Options outstanding at beginning of period, Weighted Average Exercise Price Options outstanding at end of period, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Outstanding Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Options Outstanding Number Outstanding at beginning of period, shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Outstanding at end of period, shares Award Type [Domain] Shares, Issued Balance (in shares) Balance (in shares) Short-term Debt Short-term borrowings Loans rated 7 Special Mention [Member] Statement [Table] Scenario [Axis] Statement [Line Items] Statement [Line Items] CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY CONSOLIDATED STATEMENTS OF CASH FLOWS Equity Components [Axis] Statement of Financial Position [Abstract] Statement, Operating Activities Segment [Axis] CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Class of Stock [Axis] Stock Issued During Period, Shares, Period Increase (Decrease) Stock Options [Member] Stock options Stock Issued During Period, Value, Conversion of Convertible Securities Conversion of non-voting common stock to voting common stock Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Stock-based compensation (in shares) Stock Option [Member] Stock options Exercised, shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Stock Issued During Period, Shares, Conversion of Convertible Securities Conversion of non-voting common stock to voting common stock (in shares) Stockholders' Equity Attributable to Parent [Abstract] Stockholders' equity Stockholders' Equity Attributable to Parent Total stockholders' equity Balance Balance Stockholders' Equity, Period Increase (Decrease) Subordinated Debt Subordinated debentures Accretion of preferred stock Temporary Equity, Accretion to Redemption Value, Adjustment Time Deposits Time deposits Transfers from repossessed collateral to loans Transfer from Other Real Estate Types of Financial Instruments [Domain] Schedule of company's post modification balance of TDRs by type of modification Troubled Debt Restructurings on Financing Receivables [Table Text Block] Loans rated 10 Unlikely to be Collected Financing Receivable [Member] Gross Unrealized Gains and Unrealized Losses on Available-for-Sale Securities Unrealized Gain (Loss) on Investments [Table Text Block] Unrealized loss Unrealized Gain (Loss) on Derivatives US Government Agencies Debt Securities [Member] U.S. Government agency securities Warrant [Member] Warrants to Purchase Common Stock Warrant Warrants and Rights Outstanding Warrants to purchase common stock Weighted Average Number of Shares Outstanding, Basic Basic (in shares) Weighted average shares used in calculation of basic EPS Weighted Average Number of Shares Outstanding, Diluted Diluted (in shares) Weighted average shares used in calculation of diluted EPS Weighted Average Number of Shares Outstanding, Basic and Diluted Incremental shares from assumed exercise of dilutive securities Weighted Average Number Diluted Shares Outstanding Adjustment Northeast Bancorp 2010 Option and Incentive Plan [Member] 2010 Plan Represents information pertaining to the Northeast Bancorp 2010 Option and Incentive Plan (the 2010 Plan). Northeast Bancorp Amended and Restated 2010 Option and Incentive Plan [Member] Restated Plan Represents information pertaining to the Northeast Bancorp Amended and Restated 2010 Stock Option and Incentive Plan (the Restated Plan). Number of additional shares authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Prior to Amendment [Member] Prior to amendment Represents information pertaining to records as they stand prior to amendment. Authorized Shares Class of Stock [Line Items] Shares Authorized Shares authorized Represents the maximum number of shares permitted to be issued by an entity's charter and by laws. Stockholders' Equity Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] TSM Properties LLC V.s Northeast Bank and Daniel G. Thompson [Member] TSM Properties, LLC v. Northeast Bank and Daniel G. Thompson Represents information pertaining to TSM Properties, LLC vs Northeast Bank and Daniel G. Thompson. Contingencies Loss Contingencies [Line Items] Damages sought Loss Contingency, Damages Sought, Value Plan Name [Axis] Plan Name [Domain] Schedule of Stock by Class [Table] Loss Contingencies [Table] Litigation Case [Axis] Litigation Case Type [Domain] Amortization of intangible assets Impairment of Intangible Assets, Finite-lived