Earnings Per Share [Abstract] Earnings Per Share Earnings Per Share [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Share-based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Debt Disclosure [Abstract] Borrowing Arrangements Debt Disclosure [Text Block] Receivables [Abstract] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Financing Receivable, Troubled Debt Restructuring [Axis] Financing Receivable, Troubled Debt Restructuring [Axis] Financing Receivable, Troubled Debt Restructuring [Domain] Financing Receivable, Troubled Debt Restructuring [Domain] Construction and Land Development Loans Construction and Land Development Loans [Member] Construction and Land Development Loans [Member] Other Commercial Real Estate Loans Commercial Real Estate [Member] Other Commercial Loans Commercial Loan [Member] Other 1-4 Family Residential Loans Other One to Four Family Residential Loans [Member] Other One to Four Family Residential Loans [Member] Financing Receivable, Modifications [Line Items] Financing Receivable, Modifications [Line Items] Restructured loans with an allowance, Recorded Balance Financing Receivable, Modifications, with Related Allowance, Recorded Investment Financing Receivable, Modifications, with Related Allowance, Recorded Investment Restructured loans without an allowance, Recorded Balance Financing Receivable, Modifications, with No Related Allowance, Recorded Investment Financing Receivable, Modifications, with No Related Allowance, Recorded Investment Total restructured loans, Recorded Balance Financing Receivable, Modifications, Recorded Investment Restructured loans, Allowance Financing Receivable, Modifications, Related Allowance Financing Receivable, Modifications, Related Allowance Subsequent defaults, Number of loans Financing Receivable, Modifications, Subsequent Default, Number of Contracts Subseuqent defaults, Amortized cost Financing Receivable, Modifications, Subsequent Default, Recorded Investment Banking and Thrift [Abstract] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Bank Merchants and Farmers Bank of Kosciusko [Member] Merchants and Farmers Bank of Kosciusko [Member] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Actual capital (to risk weighted assets) Capital Actual capital (to risk weighted assets) (ratio) Capital to Risk Weighted Assets Minimum capital (to risk weighted assets) Capital Required for Capital Adequacy Minimum capital (to risk weighted assets) (ratio) Capital Required for Capital Adequacy to Risk Weighted Assets Well capitalized (to risk weighted assets) Capital Required to be Well Capitalized Well capitalized (to risk weighted assets) (ratio) Capital Required to be Well Capitalized to Risk Weighted Assets Actual Tier I Capital (to risk weighted assets) Tier One Risk Based Capital Actual Tier I Capital (to risk weighted assets) (ratio) Tier One Risk Based Capital to Risk Weighted Assets Minimum Tier I Capital (to risk weighted assets) Tier One Risk Based Capital Required for Capital Adequacy Minimum Tier I Capital (to risk weighted assets) (ratio) Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets Well Capitalized Tier I Capital (to risk weighted assets) Tier One Risk Based Capital Required to be Well Capitalized Well Capitalized Tier I Capital (to risk weighted assets) (ratio) Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets Actual Tier I Capital (to average assets) Tier One Leverage Capital Actual Tier I Capital (to average assets) (ratio) Tier One Leverage Capital to Average Assets Minimum Tier I Capital (to average assets) Tier One Leverage Capital Required for Capital Adequacy Minimum Tier I Capital (to average assets) (ratio) Tier One Leverage Capital Required for Capital Adequacy to Average Assets Well Capitalized Tier I Capital (to average assets) Tier One Leverage Capital Required to be Well Capitalized Well Capitalized Tier I Capital (to average assets) (ratio) Tier One Leverage Capital Required to be Well Capitalized to Average Assets Schedule of Derivative Positions Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Schedule of Amounts Included in Operations and Other Comprehensive Income Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block] Income Tax Disclosure [Abstract] Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Unrecognized tax benefits Unrecognized Tax Benefits Operating Loss and Tax Credit Carryforwards [Table] Operating Loss and Tax Credit Carryforwards [Table] [Table] Operating Loss and Tax Credit Carryforwards [Table] [Table] Geographical [Axis] Geographical [Axis] Segment, Geographical [Domain] Segment, Geographical [Domain] Mississippi MISSISSIPPI Alabama ALABAMA Tennessee TENNESSEE Florida FLORIDA Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Federal Internal Revenue Service (IRS) [Member] State State and Local Jurisdiction [Member] Expiration Dates [Axis] Operating Loss and Tax Credit Carryforward, Expiration Dates [Axis] Operating Loss and Tax Credit Carryforward, Expiration Dates [Axis] Expiration Dates [Domain] Operating Loss and Tax Credit Carryforward, Expiration Dates [Domain] Operating Loss and Tax Credit Carryforward, Expiration Dates [Domain] Expires 2030 Operating Loss and Tax Credit Carryforward, Expiration Period, 2030 [Member] Operating Loss and Tax Credit Carryforward, Expiration Period, 2030 [Member] Expires 2029 Operating Loss and Tax Credit Carryforward, Expiration Period, 2029 [Member] Operating Loss and Tax Credit Carryforward, Expiration Period, 2029 [Member] Expires 2028 Operating Loss and Tax Credit Carryforward, Expiration Period, 2028 [Member] Operating Loss and Tax Credit Carryforward, Expiration Period, 2028 [Member] Expires 2031 Operating Loss and Tax Credit Carryforward, Expiration Period, 2031 [Member] Operating Loss and Tax Credit Carryforward, Expiration Period, 2031 [Member] Expires 2032 Operating Loss and Tax Credit Carryforward, Expiration Period, 2032 [Member] Operating Loss and Tax Credit Carryforward, Expiration Period, 2032 [Member] Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Net operating loss Operating Loss Carryforwards Tax credits Tax Credit Carryforward, Amount Alternative minimum tax credits from all years Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax Taxes payable as a result of audit Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority Variable Interest Entities [Abstract] Variable Interest Entities [Abstract] Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Variable Interest Entities [Axis] Variable Interest Entities [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] First M&F Statutory Trust I First M and F Statutory Trust I [Member] First M and F Statutory Trust I [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Fixed/Floating Junior Subordinated Deferrable Interest Debentures Maturing March 2036 Fixed for Floating Junior Subordinated Deferrable Interest Debentures [Member] Fixed for Floating Junior Subordinated Deferrable Interest Debentures [Member] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Fixed/floating rate junior subordinated deferrable interest debentures Subordinated Debt Cash received Proceeds from Issuance of Subordinated Long-term Debt Common securities received in transaction Proceeds from Issuance of Long-term Debt, Common Securities, Value Proceeds from Issuance of Long-term Debt, Common Securities, Value Capital securities issued Stock Issued During Period, Value, Other Total investment and exposure Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net Intangible Assets, Net (Excluding Goodwill) [Abstract] Other Intangible Assets Intangible Assets Disclosure [Text Block] Investments, Debt and Equity Securities [Abstract] Schedule of Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table] Schedule of Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table] Debt Security Category [Axis] Debt Security Category [Axis] Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain] Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain] Securities Available for Sale Available-for-sale Securities [Member] Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward] Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward] Beginning balance Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held OTTI credit losses on previously impaired securities Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses Ending balance Schedule of Earnings Per Share, Two Class Method and Antidilutive Securities Excluded from Computation [Table] Schedule of Earnings Per Share, Two Class Method and Antidilutive Securities Excluded from Computation [Table] Schedule of Earnings Per Share, Two Class Method and Antidilutive Securities Excluded from Computation [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Restricted Stock Restricted Stock [Member] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Stock Options Stock Options [Member] Stock Warrant Warrant [Member] Earnings Per Share, Two Class Method and Antidilutive Securities Excluded from Computation [Line Items] Earnings Per Share, Two Class Method and Antidilutive Securities Excluded from Computation [Line Items] Earnings Per Share, Two Class Method and Antidilutive Securities Excluded from Computation [Line Items] Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Preferred dividends Preferred Stock Dividends and Other Adjustments Net income applicable to common stock Net Income (Loss) Available to Common Stockholders, Basic Net income allocated to common stockholders, Distributed Distributed Earnings Net income allocated to common stockholders, Undistributed Undistributed Earnings, Basic Distributed and undistributed earnings Distributed and Undistributed Earnings, Basic Distributed and Undistributed Earnings, Basic Weighted-average basic common and participating shares outstanding Weighted Average Number of Shares Issued, Basic Less: weighted average participating restricted shares outstanding Weighted Average Number of Shares, Restricted Stock Weighted-average basic shares outstanding Weighted Average Number of Shares Outstanding, Basic Basic net income per share (in dollars per share) Earnings Per Share, Basic Add: share-based options and stock warrant Incremental Common Shares Attributable to Call Options and Warrants Weighted-average basic common and participating shares outstanding including share based options and stock warrants Weighted Average Number of Shares Outstanding, Basic, Including Share Based Options and Warrants Weighted Average Number of Shares Outstanding, Basic, Including Share Based Options and Warrants Less: weighted average participating restricted shares outstanding Incremental Common Shares Attributable to Share-based Payment Arrangements Weighted-average dilutive shares oustanding Weighted Average Number of Shares Outstanding, Diluted Dilutive net income per share (in dollars per share) Earnings Per Share, Diluted Weighted-average shares of potentially dilutive instruments that are not included in dilutive share calculation due to anti-dilutive effect Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] Financial Instrument [Axis] Financial Instrument [Axis] Types of Financial Instruments [Domain] Types of Financial Instruments [Domain] Asset-based Loans Asset Based Loans [Member] Asset Based Loans [Member] Home Equity Loans Home Equity Line of Credit [Member] Consumer Loans Consumer Loan [Member] Financing Receivable, Impaired [Line Items] Financing Receivable, Impaired [Line Items] Loans without a specific valuation allowance, Recorded Balance Impaired Financing Receivable, with No Related Allowance, Recorded Investment Loans without a specific valuation allowance, Unpaid Principal Balance Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance Loans with a specific valuation allowance, Recorded Balance Impaired Financing Receivable, with Related Allowance, Recorded Investment Loans with a specific valuation allowance, Unpaid Principal Balance Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance Total, Recorded Balance Impaired Financing Receivable, Recorded Investment Total, Unpaid Principal Balance Impaired Financing Receivable, Unpaid Principal Balance Specific Allowance Impaired Financing Receivable, Related Allowance Loans without a specific valuation allowance, Average Investment in Impaired Loans Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment Loans without a specific valuation allowance, Interest Income Recognized Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method Loans with a specific valuation allowance, Average Investment In Impaired Loans Impaired Financing Receivable, with Related Allowance, Average Recorded Investment Loans with a specific valuation allowance, Interest Income Recognized Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method Total, Average Investment In Impaired Loans Impaired Financing Receivable, Average Recorded Investment Total, Interest Income Recognized Impaired Financing Receivable, Interest Income, Accrual Method Schedule of Securities Available for Sale Available-for-sale Securities [Table Text Block] Schedule of Securities Available for Sale in a Continuous Loss Position Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] Schedule of Other than Temporary Impairment Credit Losses Recognized in Earnings Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block] Schedule of Investments Classified by Contractual Maturity Investments Classified by Contractual Maturity Date [Table Text Block] Statement of Other Comprehensive Income [Abstract] Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Unrealized gains (losses) on securities: Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax [Abstract] Unrealized gains (losses) on securities available for sale arising during the period, net of tax of $339 and $156 for the three months ended March 31 Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Unrealized gains on other-than-temporarily impaired securities available for sale arising during the period, net of tax of $3 and $20 for the three months ended March 31 Other Comprehensive Income Net Unrealized Gains And Losses On Other Than Temporarily Impaired Securities Net Of Tax Appreciation or loss in value (before reclassification adjustment) of the total of unsold securities during the period being reported on, net of tax. Reclassification adjustments include: (1) the unrealized holding gain or loss, net of tax, at the date of the transfer for a debt security from the held-to-maturity category transferred into the available-for-sale category. Also includes the unrealized gain or loss at the date of transfer for a debt security from the available-for-sale category transferred into the held-to-maturity category; (2) the unrealized gains or losses realized upon the sale of securities, after tax; and (3) the unrealized gains or losses realized upon the write-down of securities, after tax. Reclassification adjustment for gains on securities available for sale included in net income, net of tax of $6 and $220 for the three months ended March 31 Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax Unrealized losses net of settlements on cash flow hedge arising during the period, net of tax of $33 and $40 for the three months ended March 31 Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Defined benefit pension plans: Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax [Abstract] Amortization of actuarial loss, net of tax of $220 and $199 for the three months ended March 31 Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Total comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Preferred Stock Preferred Stock [Member] Common Stock Common Stock [Member] Additional Paid-In Capital Additional Paid-in Capital [Member] Nonvested Restricted Stock Awards Deferred Compensation Restricted Shares [Member] Deferred Compensation Restricted Shares [Member] Retained Earnings Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning Balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Cash dividends ($.01 per share) Dividends, Common Stock, Cash Shares granted to directors Stock Issued During Period, Value, Share-based Compensation, Gross Dividends and accretion on preferred stock Dividends, Accretion Preferred Stock Accretion of preferred stock and dividends declared. Share-based compensation expense recognized Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Net change Ending Balance Derivative [Table] Derivative [Table] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Derivatives designated in cash flow hedging relationships Designated as Hedging Instrument [Member] Derivatives not designated as hedging instruments: Not Designated as Hedging Instrument [Member] Derivative Instrument Risk [Axis] Derivative Instrument Risk [Axis] Derivative Contract Type [Domain] Derivative Contract Type [Domain] Interest rate swap Interest Rate Swap [Member] Forward Sale Agreements Forward Contracts [Member] Written Interest Rate Options (Locks) Written Interest Rate Options, Locks [Member] Written Interest Rate Options, Locks [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Interest on junior subordinated debt Interest Expense, Junior Subordinated Debentures [Member] Interest Expense, Junior Subordinated Debentures [Member] Mortgage banking income Fees and Commissions, Mortgage Banking [Member] Fees and Commissions, Mortgage Banking [Member] Derivative [Line Items] Derivative [Line Items] Amount of pre-tax gain (loss) recognized in OCI (Effective Portion) Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Amount of pre-tax gain (loss) reclassified from AOCI into earnings (Effective Portion) Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Schedule of Financing Receivables Past Due [Table] Schedule of Financing Receivables Past Due [Table] Financing Receivable, Recorded Investment, Past Due [Line Items] Financing Receivable, Recorded Investment, Past Due [Line Items] Total nonaccrual loans Financing Receivable, Recorded Investment, Nonaccrual Status Other real estate owned Other Real Estate, Foreclosed Assets, and Repossessed Assets Total nonperforming crdit-related assets Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Trading Symbol Trading Symbol Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Schedule of Stock Award Activity Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Current income tax expense Current Income Tax Expense (Benefit) Deferred income tax expense Deferred Income Tax Expense (Benefit) Total income tax expense Income Tax Expense (Benefit) Net deferred tax assets Deferred Tax Assets, Net Fair Value Disclosures [Abstract] Schedule of 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 Activity in Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Schedule of Certain Quantitative Information About Valuation Techniques and Significant Unobservable Inputs Fair Value Inputs, Assets, Quantitative Information [Table Text Block] Schedule of Assets and Liabilities Measured at Fair Value on Nonrecurruing Basis Fair Value Measurements, Nonrecurring [Table Text Block] Schedule of Losses Recognized on Assets Measured on a Nonrecurring Basis Schedule of Losses Recognized on Assets Measured on a Nonrecurring Basis [Table Text Block] Schedule of Losses Recognized on Assets Measured on a Nonrecurring Basis [Table Text Block] Schedule of Carrying Amounts and Fair Values of Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value, Disclosure Item Amounts [Domain] Fair Value, Disclosure Item Amounts [Domain] Estimate of Fair Value Estimate of Fair Value, Fair Value Disclosure [Member] Carrying Value Carrying (Reported) Amount, Fair Value Disclosure [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Nonrecurring Fair Value, Measurements, Nonrecurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Quoted Prices In Active Markets For Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Asset Class [Axis] Asset Class [Axis] Fair Value by Asset Class [Domain] Fair Value by Asset Class [Domain] Impaired loans Impaired Loans [Member] Impaired Loans [Member] Loan foreclosures Loan Foreclosures [Member] Loan Foreclosures [Member] Other real estate Other Real Estate [Member] Other Real Estate [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Loans receivable Loans Receivable, Fair Value Disclosure Other real estate Other Assets, Fair Value Disclosure Gross recognized losses related to the credit component of other-than-temporary impairments Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Revolving Line of Credit Maturing March 2013 Revolving Credit Facility [Member] Junior Subordinated Debt Maturing March 2036 Junior Subordinated Debt [Member] Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Federal Home Loan Bank of Dallas Federal Home Loan Bank Advances [Member] Federal Reserve Discount Window Federal Reserve Bank Advances [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Maximum Maximum [Member] Designated as Cash Flow Hedging Instrument Debt Instrument [Line Items] Debt Instrument [Line Items] Company’s line of credit in the amount of $5,000,000, maturing in March 2013; secured by approximately 51% of the Bank’s common stock; interest payable quarterly at the prime rate with a floor of 3.50% Line of Credit Facility, Amount Outstanding Bank’s advances from Federal Home Loan Banks Long-term Federal Home Loan Bank Advances Other borrowings Other Borrowings Company’s junior subordinated debentures, interest payable quarterly at 90-day LIBOR plus 1.33% through March 2036; currently redeemable Junior Subordinated Notes Line of credit maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Frequency of Payments Line of Credit Facility, Frequency of Payments Percent of common stock securing line of credit Line of Credit Facility, Collateral, Percent of Common Stock Line of Credit Facility, Collateral, Percent of Common Stock Line of credit interest rate floor Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum Floating interest rate over LIBOR Debt Instrument, Basis Spread on Variable Rate Debt Instrument, Frequency of Periodic Payment Debt Instrument, Frequency of Periodic Payment Number of Required Principal Payments Number of Required Principal Payments Number of Required Principal Payments Required payment for Q2 March 2012 Required Repayment of Debt Principal, Quarter One Required Repayments of Debt Principal Required payment for Q3 March 2012 Required Repayment of Debt Principal, Quarter Two Required Repayment of Debt Principal, Quarter Two Required payment for Q4 March 2012 Required Repayment of Debt Principal, Quarter Three Required Repayment of Debt Principal, Quarter Three Available amount of line of credit Line of Credit Facility, Current Borrowing Capacity Number of consecutive quarterly payments of interest that may be deferred Number of Allowable Consecutive Deferred Quarterly Payments Number of Allowable Consecutive Deferred Quarterly Payments Interest rate swap, notional value Derivative, Notional Amount Interest rate swap, stated rate (as a percentage) Debt Instrument, Interest Rate, Stated Percentage Compensation and Retirement Disclosure [Abstract] Interest cost Defined Benefit Plan, Interest Cost Expected return on plan assets Defined Benefit Plan, Expected Return on Plan Assets Amortization of prior service costs Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Recognized actuarial loss Defined Benefit Plan, Other Costs Net pension cost Defined Benefit Plan, Net Periodic Benefit Cost Unrealized gains on securities available for sale arising during the period, tax Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax Unrealized gains (losses) on other-than-temporarily impaired securities available for sale arising during the period, tax Other Comprehensive Income (Loss), Net Unrealized Gains and Losses on Other Than Temporarily Impaired Securities, Tax Other Comprehensive Income (Loss), Net Unrealized Gains and Losses on Other Than Temporarily Impaired Securities, Tax Reclassification adjustment for gain on securities available for sale included in net income, tax Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax Unrealized losses net of settlements on cash flow hedge arising during the period, tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax, Portion Attributable to Parent Amortization of actuarial loss, tax Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized (Gain) Loss Arising During Period, Tax Accounting Policies [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Municipal bonds US States and Political Subdivisions Debt Securities [Member] Level 2 Number of securities not priced by primary provider Number of Securities Not Priced by Primary Provider Number of Securities Not Priced by Primary Provider Number of issuers Number of Issuers of Securities Not Priced by the Primary Provider Number of Issuers of Securities Not Priced by the Primary Provider Recurring Fair Value, Measurements, Recurring [Member] U.S Government sponsored entities US Government-sponsored Enterprises Debt Securities [Member] Mortgage-backed investments Mortgage-backed Securities, Issued by Private Enterprises [Member] Obligations of states and political subdivisions Collateralized debt obligations Collateralized Debt Obligations [Member] Other debt securities Other Debt Obligations [Member] Mortgage derivative Mortgages [Member] Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract] Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract] Securities available for sale Available-for-sale Securities, Fair Value Disclosure Derivative assets Derivative Assets Total assets Assets, Fair Value Disclosure Derivative liabilities Derivative Financial Instruments, Liabilities, Fair Value Disclosure Total liabilities Liabilities, Fair Value Disclosure Loans and Allowance for Loans Losses Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Schedule of Earnings Per Share and Reconciliation of Earnings Per Share Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Components of Unamortized Pension Costs Recognized in Stockholders' Equity Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] Schedule of Components of Net Periodic Benefit Costs Schedule of Net Benefit Costs [Table Text Block] Schedule of Loans Held for Investment, Net of Unearned Income Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Past Due Status of Loans, by Type Past Due Financing Receivables [Table Text Block] Schedule of Nonaccrual Status Loans and Nonperforming Assets Schedule of Nonaccrual Status Loans and Nonperforming Assets [Table Text Block] Schedule of Nonaccrual Status Loans and Nonperforming Assets [Table Text Block] Schedule of Loans by Credit Risk Rating Financing Receivable Credit Quality Indicators [Table Text Block] Schedule of Loans Individually Reviewed for Impairment Allowances and Averaged Recorded Investment in Impaired Loans Impaired Financing Receivables [Table Text Block] Schedule of Allowance for Loan Losses, by Loan Cateogry Allowance for Credit Losses on Financing Receivables [Table Text Block] Schedule of Restructured Loan Portfolio Schedule of Restructured Loan Portfolio [Table Text Block] Schedule of Restructured Loan Portfolio [Table Text Block] Schedule of Trouble Debt Restructurings Troubled Debt Restructurings on Financing Receivables [Table Text Block] Schedule of Components of Income Tax Expense Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Net Operating Losses and Tax Credits Available for Carryover Summary of Operating Loss Carryforwards and Tax Credits [Table Text Block] Tabular disclosure of pertinent information, such as tax authority, amounts, and expiration dates, of net operating loss carryforwards and tax credits, including an assessment of the likelihood of utilization. Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Mortgage-backed investments Collateralized Mortgage Backed Securities [Member] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Less Than 12 Months, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Less Than 12 Months, Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 12 Months or More, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value 12 Months or More, Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses Total, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Total, Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Schedule of Company's and Bank's Actual Capital Amounts and Ratios Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] Amortized Cost Available-for-sale Securities, Amortized Cost Basis Gross Unrealized Gains Available-for-sale Securities, Gross Unrealized Gains Gross Unrealized Losses Available-for-sale Securities, Gross Unrealized Losses Fair Value Available-for-sale Securities Schedule of Intangible Assets, Net of Accumulated Amortization Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of Restricted Cash and Cash Equivalents [Table] Schedule of Restricted Cash and Cash Equivalents [Table] Restricted Cash and Cash Equivalents [Axis] Restricted Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Certificates of Deposit Certificates of Deposit [Member] Other Interest Bearing Bank Balances Interest-bearing Deposits [Member] Compensating Balances, Cash and Cash Equivalents [Axis] Compensating Balances, Cash and Cash Equivalents [Axis] Compensating Balances, Cash and Cash Equivalents [Domain] Compensating Balances, Cash and Cash Equivalents [Domain] Compensating Balances, Third Party Credit Card Originator and Debit Card Processor Compensating Balances, Third Party Credit Card Originator and Debit Card Processor [Member] Compensating Balances, Third Party Credit Card Originator and Debit Card Processor [Member] Restricted Cash and Cash Equivalents Items [Line Items] Restricted Cash and Cash Equivalents Items [Line Items] Pledged interest bearing bank balances, as collateral Derivative, Collateral, Cash Pledged Derivative, Collateral, Cash Pledged Restricted cash and cash equivalents Restricted Cash and Cash Equivalents Equity [Abstract] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Available-for-Sale Securities Without Other-Than-Temporary Impairments Accumulated Net Unrealized Investment Gain (Loss) [Member] Available-for-Sale Securities With Other-Than-Temporary Impairments Accumulated Other-than-Temporary Impairment [Member] Cash Flow Hedge Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] Defined Benefit Pension Plan Accumulated Defined Benefit Plans Adjustment [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] [Line Items] for Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Roll Forward] Accumulated Other Comprehensive Income (Loss) [Roll Forward] Accumulated Other Comprehensive Income (Loss) [Roll Forward] Beginning balance Accumulated Other Comprehensive Income (Loss), Net of Tax Unrealized gains/losses arising during the period Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Amount after tax, before reclassification adjustments of other comprehensive income (loss). Reclassifications from accumulated other comprehensive income Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Amount after tax of reclassification adjustments of other comprehensive income (loss). Ending balance Regulatory Matters Regulatory Capital Requirements under Banking Regulations [Text Block] Unamortized actuarial loss Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax Deferred taxes Pension and Other Postretirment Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), Tax Pension and Other Postretirment Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), Tax Net unamortized pension costs Defined Benefit Plan, Accumulated Other Comprehensive Income Net Gains (Losses), after Tax Unamortized actuarial loss, Amortization Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax Deferred taxes, Amortization Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Tax Net unamortized pension costs, Amortization Unamortized actuarial loss Deferred taxes Net unamortized pension costs 30-59 Days Past Due Financing Receivable, Recorded Investment, 30 to 59 Days Past Due 60-89 Days Past Due Financing Receivable, Recorded Investment, 60 to 89 Days Past Due Greater Than 90 Days Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due Total Past Due Financing Receivable, Recorded Investment, Past Due Current Financing Receivable, Recorded Investment, Current Total Loans Receivable Loans and Leases Receivable, Net of Deferred Income Total Loans Greater than 90 Days and Accruing Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing Preferred Stock and Common Stock Warrant Stockholders' Equity Note Disclosure [Text Block] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2005 Plan Share Based Compensation, 2005 Plan [Member] Share Based Compensation, 2005 Plan [Member] 1999 Plan Share Based Compensation, 1999 Plan [Member] Share Based Compensation, 1999 Plan [Member] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Shares Available For Grant, Beginning of Period Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Shares Available For Grant, Awards Granted Share-based Compensation Arrangement by Share-based Payment Award, Decrease in Number of Shares Available for Grant Due to Grants Share-based Compensation Arrangement by Share-based Payment Award, Decrease in Number of Shares Available for Grant Due to Grants Shares Available For Grant, Forfeitures Share-based Compensation Arrangement by Share-based Payment Award, Increase in Number of Shares Available for Grant Due to Forfeitures Share-based Compensation Arrangement by Share-based Payment Award, Increase in Number of Shares Available for Grant Due to Forfeitures Shares Available For Grant, End of Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, 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] Number of Shares, Beginning of Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Number of Shares, Awards Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Number of Shares, Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Number of Shares, Forfeitures Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Number of Shares, End of Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, 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 [Roll Forward] Weighted Average Grant Date Fair Value, Beginning of Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value, Awards Granted 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, Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value, Forfeitures Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value, End of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Number of Shares, Beginning of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Number of Shares, Awards Granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Number of Shares, Forfeitures Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Number of Shares, Expired Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Number of Shares, End of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] Weighted Average Exercise Price, Beginning of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Weighted Average Exercise Price, Awards Granted Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Weighted Average Exercise Price, Forfeitures Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Weighted Average Exercise Price, Expired Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Weighted Average Exercise Price, End of Period Number of Shares, Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number Weighted Average Exercise Price, Shares Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Financial assets: Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Cash and short-term investments Cash and Short Term Investments, Fair Value Disclosure Cash and Short Term Investments, Fair Value Disclosure Loans held for sale Loans Held-for-sale, Fair Value Disclosure Loans held for investment Loans Held-for-investment, Fair Value Disclosure Loans Held-for-investment, Fair Value Disclosure Agency accounts receivable Accounts Receivable, Fair Value Disclosure Accrued interest receivable Accrued Interest Receivable, Fair Value Disclosure Accrued Interest Receivable, Fair Value Disclosure Nonmarketable equity investments Alternative Investments, Fair Value Disclosure Investments in unconsolidated VIEs Equity Method Investments, Fair Value Disclosure Mortgage derivative assets Financial liabilities: Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Noninterest-bearing deposits Noninterest Bearing Deposits Liabilities, Fair Value Disclosure Noninterest Bearing Deposits Liabilities, Fair Value Disclosure NOW, MMDA and savings deposits Deposits, Fair Value Disclosure Certificates of deposit Certificates of Deposit Liabilities, Fair Value Disclosure Certificates of Deposit Liabilities, Fair Value Disclosure Short-term borrowings Short-term Debt, Fair Value Other borrowings Other Liabilities, Fair Value Disclosure Junior subordinated debt Junior Subordinated Notes, Fair Value Disclosure Junior Subordinated Notes, Fair Value Disclosure Agency accounts payable Accounts Payable, Fair Value Disclosure Accrued interest payable Accrued Liabilities, Fair Value Disclosure Mortgage derivative liabilities Mortgage Derivative Liabilities, Fair Value Disclosure Mortgage Derivative Liabilities, Fair Value Disclosure Commitments to extend credit and letters of credit Commitments, Fair Value Disclosure Interest rate swap Finite-lived Intangible Assets [Roll Forward] Finite-lived Intangible Assets [Roll Forward] Beginning Balance Intangible Assets, Net (Excluding Goodwill) Amortization expense Amortization of Intangible Assets Ending Balance Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Remainder of 2013 Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year 2014 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2015 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2016 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Five 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Six Amount of amortization expense expected to be recognized during the sixth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Statement of Financial Position [Abstract] Assets Assets [Abstract] Cash and due from banks Cash and Due from Banks Interest bearing bank balances Interest-bearing Deposits in Banks and Other Financial Institutions Federal funds sold Federal Funds Sold Securities available for sale, amortized cost of $370,679 and $341,273 Loans held for sale Loans Receivable Held-for-sale, Net Loans, net of unearned income Allowance for loan losses Loans and Leases Receivable, Allowance Net loans Loans and Leases Receivable, Net Amount Bank premises and equipment Property, Plant and Equipment, Net Accrued interest receivable Interest Receivable Other real estate Other intangible assets Bank owned life insurance Bank Owned Life Insurance Other assets Other Assets Total assets Assets Liabilities and Stockholders' Equity Liabilities and Equity [Abstract] Liabilities: Liabilities [Abstract] Noninterest-bearing deposits Noninterest-bearing Deposit Liabilities Interest-bearing deposits Interest-bearing Deposit Liabilities Total deposits Deposits Federal funds purchased and repurchase agreements Federal Funds Purchased and Securities Sold under Agreements to Repurchase Junior subordinated debt Accrued interest payable Interest Payable Other liabilities Other Liabilities Total liabilities Liabilities Commitments and contingencies Commitments and Contingencies Stockholders' equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Preferred Stock; 2,000,000 shares authorized; 30,000 shares issued and outstanding Preferred Stock, Value, Issued Common stock of $5.00 par value; 50,000,000 shares authorized: 9,233,917 and 9,230,799 shares issued and outstanding Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Nonvested restricted stock awards Restricted stock units and employee stock options Restricted stock units and employee stock options Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income Total equity Total liabilities and equity Liabilities and Equity Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Commercial and Consumer Commercial and Consumer Loans [Member] Commercial and Consumer Loans [Member] Individual Real Estate-Secured Loans Residential Mortgage [Member] Commercial Real Estate Commerical Agricultural and Municipal Commerical, Agricultural and Municipal [Member] Commerical, Agricultural and Municipal [Member] Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Federal Reserve Bank Federal Home Loan Bank Advances Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Loans held for investment, unearned income Loans and Leases Receivable, Deferred Income Loans pledged as collateral Loans Pledged as Collateral Loan participations purchased during period, held for investment Loan Participations Purchased, Held for Investment Loan Participations Purchased, Held for Investment Transfer of mortgage loans from held-for-sale to loans held for investment Transfer of Loans From Held for Sale Status Into Portfolio of Loans Held for Investment Transfer of Loans From Held for Sale Status Into Portfolio of Loans Held for Investment Allowance for loan losses, historical period used for loss rates Allowance for Loan and Lease Losses, Loss Rate, Historical Period Allowance for Loan and Lease Losses, Loss Rate, Historical Period Adjustment to historical loan loss rate due to environmental factors (as a percentage) Adjustment to Historical Loan Loss Rate Due to Environmental Factors, Upward, Percentage Adjustment to Historical Loan Loss Rate Due to Environmental Factors, Upward, Percentage Credit commitments available for construction and land development restructured loans Credit Commitments for Construction and Land Development Restructured Loans Credit Commitments for Construction and Land Development Restructured Loans Loans restructured during the period Financing Receivable, Modifications in Period, Number of Contracts Number of financing receivables that have been modified by troubled debt restructurings during the period. Fair Value Fair Value Disclosures [Text Block] Business Combinations of Reporting Entity [Abstract] Business Combinations of Reporting Entity [Abstract] Pending Merger Business Combination of Reporting Entity Disclosure [Text Block] Business Combination of Reporting Entity Disclosure [Text Block] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Disclosure of information about items reclassified out of accumulated other comprehensive income (loss). Interest Rate Contract [Member] Interest Rate Contract [Member] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Information by item reclassified out of accumulated other comprehensive income (loss). Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] [Domain] for Information by item reclassified out of accumulated other comprehensive income (loss). Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Identifies item reclassified out of accumulated other comprehensive income (loss). Accumulated Net Unrealized Investment Gain (Loss) Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Securities gains, net Gain (Loss) on Sale of Investments Income tax expense Net income Interest expense on junior subordinated debt Interest Expense, Junior Subordinated Debentures Amortization of actuarial loss Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), before Tax Amount before tax of reclassification adjustment from accumulated other comprehensive income (loss) for actuarial gain (loss) related to pension and other postretirement benefit plans. Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Preferred Class A Preferred Class A [Member] Preferred Class B Preferred Class B [Member] Series of Stock [Axis] Series of Stock [Axis] Series of Stock [Axis] Series of Stock [Domain] Series of Stock [Domain] Series of Stock [Domain] Series A Preferred Stock Series A Preferred Stock [Member] Series CD Preferred Stock Series Cd Preferred Stock [Member] Series Cd Preferred Stock [Member] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Banking Subsidiary Uncertified for 180 Days Banking Subsidiary Uncertified for One Hundred and Eighty Days [Member] Banking Subsidiary Uncertified for One Hundred and Eighty Days [Member] Banking Subsidiary Uncertified for 270 Days Banking Subsidiary Uncertified for Two Hundred and Seventy Days [Member] Banking Subsidiary Uncertified for Two Hundred and Seventy Days [Member] Class of Stock [Line Items] Class of Stock [Line Items] Preferred stock, shares issued Preferred Stock, Shares Issued Warrant term Class of Warrant or Right, Term of Warrant or Right Class of Warrant or Right, Term of Warrant or Right Number of shares to be purchased by warrants Class of Warrant or Right, Number of Securities Called by Warrants or Rights Exercise price of warrants Class of Warrant or Right, Exercise Price of Warrants or Rights Proceeds received in exchange Proceeds from Issuance or Sale of Equity Adjustments to additional paid-in capital, common stock warrant Adjustments to Additional Paid in Capital, Warrant Issued Liquidation preference Preferred Stock, Liquidation Preference Per Share Expected dividend rate Fair Value Assumptions, Expected Dividend Rate Discount rate Fair Value Inputs, Discount Rate Accretion period of redemption discount Preferred Stock, Accretion Period of Redemption Discount Preferred Stock, Accretion Period of Redemption Discount Accretion of redemption discount Preferred Stock, Accretion of Redemption Discount Period for initial dividend rate Preferred Stock, Period For Initial Dividend Rate Preferred Stock, Period For Initial Dividend Rate Number of days uncertified, first period Number of Days Uncertified, Period One Number of Days Uncertified, Period One Number of days uncertified, second period Number of Days Uncertified, Period Two Number of Days Uncertified, Period Two Gain recorded on exchange of stock Gain on Exchange of Preferred Stock Gain on Exchange of Preferred Stock Fair value of stock on exchange date Stock Redeemed or Called During Period, Value Dividend Rate Preferred Stock, Dividend Rate, Percentage Shares Authorized Preferred Stock, Shares Authorized Shares Outstanding Preferred Stock, Shares Outstanding Carrying Value Use of Estimates Use of Estimates, Policy [Policy Text Block] Reclassifications Reclassification, Policy [Policy Text Block] Loans Held for Sale and Investment Receivables, Policy [Policy Text Block] Allowance and Provision for Loan Losses Finance, Loan and Lease Receivables, Held-for-investment, Allowance and Nonperforming Loans, Allowance Policy [Policy Text Block] Concentrations of Credit Concentration Risk, Credit Risk, Policy [Policy Text Block] Restricted Cash Balances Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Schedule of Gross Accumulated Other Comprehensive Income (Loss) and Related Income Tax Effects Schedule of Accumulated Other Comprehensive Income (Loss) and Related Income Tax Effects [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) and Related Income Tax Effects [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] [Table Text Block] for Disclosure of information about items reclassified out of accumulated other comprehensive income (loss). Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other Assets Other Assets [Member] Other Liabilities Other Liabilities [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Asset Derivatives, Notional Amount Derivative Asset, Notional Amount Asset Derivative, Fair Value Derivative Asset, Fair Value, Net Liability Derivative, Notional Amount Derivative Liability, Notional Amount Liability Derivative, Fair Value Derivative Liability, Fair Value, Net Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Construction Other Commercial Real Estate Asset-Based Other Commercial Home Equity Other 1-4 Family Consumer Credit Quality Indicator [Axis] Credit Quality Indicator [Axis] Financing Receivable, by Credit Quality Indicator [Domain] Financing Receivable, by Credit Quality Indicator [Domain] Risk Rating 10 and 20 Performing Financing Receivable [Member] Risk Rating 30 - 32 Pass [Member] Risk Rating 40 Special Mention [Member] Risk Rating 50 Substandard [Member] Risk Rating 60 Doubtful [Member] Financing Receivable, Recorded Investment [Line Items] Financing Receivable, Recorded Investment [Line Items] Loans Financing Receivable, Net U.S Government sponsored entities Collateralized mortgage backed securities Municipal bonds Municipal Bonds [Member] Corporate debt securities Corporate Debt Securities [Member] Securities in unrealized loss positions for less than 12 months Available-for-sale, Securities in Unrealized Loss Positions For Less than 12 Months, Qualitative Disclosure, Number of Positions Disclosure regarding factors used to determine that the impairment of securities not categorized as either held-to-maturity securities or trading securities (hence equal to available for sale securities) where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the available-for-sale investments determined to be temporarily impaired for less than 12 months. Securities in unrealized loss positions for more than 12 months Available-for-sale, Securities in Unrealized Loss Positions For More Than 12 Months, Qualitative Disclosure, Number of Positions Disclosure regarding factors used to determine that the impairment of securities not categorized as either held-to-maturity securities or trading securities (hence equal to available for sale securities) where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the available-for-sale investments determined to be temporarily impaired for more than twelve months. Securities representing the majority of unrealized losses in the Investment Portfolio Number of Investment Securities Representing the Majority of Unrealized Losses in the Investment Portfolio Number of Investment Securities Representing the Majority of Unrealized Losses in the Investment Portfolio Securities pledged as collateral Available-for-sale Securities Pledged as Collateral Schedule of Other Borrowings Schedule of Debt [Table Text Block] Securities available for sale, amortized cost Preferred stock, shares authorized Preferred stock, shares outstanding Common stock, par value Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Common stock, shares outstanding Common Stock, Shares, Outstanding Schedule of Deferred Compensation Arrangement with Individual, Postretirement Benefits [Table] Schedule of Deferred Compensation Arrangement with Individual, Postretirement Benefits [Table] Postretirement Benefits, Type of Deferred Compensation [Axis] Postretirement Benefits, Type of Deferred Compensation [Axis] Type of Deferred Compensation, All Types [Domain] Type of Deferred Compensation, All Types [Domain] 401k Defined Contribution Pension [Member] Employee Service Period [Axis] Employee Service Period [Axis] Employee Service Period [Axis] Employee Service Period [Domain] Employee Service Period [Domain] Employee Service Period [Domain] Less than Three Years of Credited Service Less Than Three Years of Credited Service [Member] Less Than Three Years of Credited Service [Member] More than Three Years of Credited Service More Than Three Years of Credited Service [Member] More Than Three Years of Credited Service [Member] Minimum Minimum [Member] Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] Company made contributions Defined Benefit Plan, Contributions by Employer Expected contributions during remainder of fiscal year Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year Contributions to the ESOP Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP Employer matching contributions, amount Defined Contribution Plan, Employer Matching Contribution, Amount Defined Contribution Plan, Employer Matching Contribution, Amount Employer matching contributions, maximum annual contribution, percentage Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent Employer matching contributions, percentage Defined Contribution Plan, Employer Matching Contribution, Percent Credited service period for lower matching rate Credited Service Period For Lower Matching Rate Credited Service Period For Lower Matching Rate Credited Service Period For Higher Matching Rate Credited Service Period For Higher Matching Rate Credited Service Period For Higher Matching Rate Nonqualified deferred compensation plan, deferred compensation Deferred Compensation Arrangement with Individual, Amount Deferred Deferred Compensation Arrangement with Individual, Amount Deferred Nonqualified deferred compensation plan, received distributions Deferred Compensation Arrangement with Individual, Distributions Paid Nonqualified deferred compensation plan, earnings increases Deferred Compensation Arrangement with Individual, Increase in Compensation Deferred Compensation Arrangement with Individual, Increase in Compensation Nonqualified deferred compensation plan, incurred expenses Deferred Compensation Arrangement with Individual, Compensation Expense Nonqualified deferred compensation plan, recorded liability Deferred Compensation Arrangement with Individual, Recorded Liability Title of Individual [Axis] Title of Individual [Axis] Title of Individual with Relationship to Entity [Domain] Title of Individual with Relationship to Entity [Domain] Selected Officers and Employees Selected Officers and Key Employees [Member] Selected Officers and Key Employees [Member] Directors Director [Member] Estimated forfeiture rate (as a percentage) Share-based Compensation Arrangement by Share-based Payment Award, Estimated Forfeiture Rate Share-based Compensation Arrangement by Share-based Payment Award, Estimated Forfeiture Rate Estimated annual forfeiture rate (as a percentage) Share-based Compensation Arrangement by Share-based Payment Award, Estimated Annual Forfeiture Rate Share-based Compensation Arrangement by Share-based Payment Award, Estimated Annual Forfeiture Rate Unrecognized compensation costs Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Unrecognized compensation costs, weighted-average period of recognition Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Award vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Shares granted Commitment for future grants in April 2013 for selected non-management employees Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Revised Grants in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Revised Grants in Period Shares available for grant under plan Authorized shares to be reserved for issuance in lieu of cash Share-based Compensation Arrangement by Share-based Payment Award, Shares Authorized for Issuance in Lieu of Cash Payments Share-based Compensation Arrangement by Share-based Payment Award, Shares Authorized for Issuance in Lieu of Cash Payments Minimum percentage of compensation allowed in shares Share-based Compensation Arrangement by Share-based Payment Award, Minimum Percentage of Compensation Allowed in Shares Share-based Compensation Arrangement by Share-based Payment Award, Minimum Percentage of Compensation Allowed in Shares Shares granted to directors in lieu of fees Stock Issued During Period, Shares, Share-based Compensation, Gross Schedule of Business Acquisitions of Reporting Entity [Table] Schedule of Business Acquisitions of Reporting Entity [Table] Schedule of Business Acquisitions of Reporting Entity [Table] Merger Activity, Acquirer [Axis] Merger Activity, Acquirer [Axis] Merger Activity, Acquirer Merger Activity, Acquirer [Domain] Merger Activity, Acquirer [Domain] Merger Activity, Acquirer [Domain] Renasant Corporation Renasant Corporation [Member] Renasant Corporation [Member] Schedule of Business Acquisitions of Reporting Entity [Line Items] Schedule of Business Acquisitions of Reporting Entity [Line Items] Schedule of Business Acquisitions of Reporting Entity [Line Items] Shares received from acquirer, ratio of shares received to one share of common stock held Shares Received From Acquirer, Ratio of Shares Received to One Share of Common Stock Held Shares Received From Acquirer, Ratio of Shares Received to One Share of Common Stock Held Income Taxes Income Tax Disclosure [Text Block] Fixed payment rate Derivative, Fixed Interest Rate Derivative, Description of Variable Rate Basis Derivative, Description of Variable Rate Basis Basis spread on floating rate Derivative, Basis Spread on Variable Rate Cash pledged as collateral Net settlement payment Derivative Instrument, Settlement Payment, Net Derivative Instrument, Settlement Payment, Net Estimated interest expense to be recognized during remainder of 2012 Derivative Instrument, Estimated Interest Expense To Be Recognized During Remaining Fiscal Period Derivative Instrument, Estimated Interest Expense To Be Recognized During Remaining Fiscal Period Estimated interest expense to be recognized over the next 12 months Derivative Instrument, Interest Expense To Be Recognized Next Twelve Months Derivative Instrument, Interest Expense To Be Recognized Next Twelve Months MS Statewide Title MS Statewide Title [Member] MS Statewide Title [Member] Ownership percentage Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Schedule of Financing Receivable, Allowance for Credit Losses [Table] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Portfolio Segment [Axis] Portfolio Segment [Axis] Financing Receivable Allowance [Domain] Financing Receivable Allowance [Domain] Commercial Commercial Portfolio Segment [Member] Residential Residential Portfolio Segment [Member] Consumer Consumer Portfolio Segment [Member] Unallocated Unallocated Financing Receivables [Member] Financing Receivable, Allowance for Credit Losses [Line Items] Financing Receivable, Allowance for Credit Losses [Line Items] Financing Receivable, Allowance for Credit Losses [Roll Forward] Financing Receivable, Allowance for Credit Losses [Roll Forward] Allowance, beginning of period Financing Receivable, Allowance for Credit Losses Provision charged to expense Allowance for Loan and Lease Losses, Period Increase (Decrease) Losses charged off Financing Receivable, Allowance for Credit Losses, Write-downs Recoveries Allowance for Doubtful Accounts Receivable, Recoveries Allowance, end of period Allowance for loan losses, Individually evaluated for impairment Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Allowance for loan losses, Collectively evaluated for impairment Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Allowance for loan losses, Loans acquired with deteriorated credit quality Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality Loans, Individually evaluated for impairment Financing Receivable, Individually Evaluated for Impairment Loans, Collectively evaluated for impairment Financing Receivable, Collectively Evaluated for Impairment Loans, Loans acquired with deteriorated credit quality Financing Receivable, Acquired with Deteriorated Credit Quality Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table] Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table] Level 3 Mortgage interest rate lock agreements Mortgage Interest Rate Lock Agreements [Member] Mortgage Interest Rate Lock Agreements [Member] Mortgage forward sale agreements Mortgage Forward Sale Agreements [Member] Mortgage Forward Sale Agreements [Member] Valuation Technique [Axis] Valuation Technique [Axis] Valuation Technique [Domain] Valuation Technique [Domain] Discounted cash flow Discounted Cash Flow Valuation Technique [Member] Discounted Cash Flow Valuation Technique [Member] Consensus pricing Market Approach Valuation Technique [Member] Weighted Average Weighted Average [Member] Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] Fair Value Inputs [Abstract] Fair Value Inputs [Abstract] Assets, Fair Value Liabilities, Fair Value Default rates Fair Value Inputs, Default Rates Fair Value Inputs, Default Rates Pull through rates Fair Value Inputs, Pull Through Rates Fair Value Inputs, Pull Through Rates Adjustments for market conditions since appraisal Fair Value Inputs, Market Conditions Adjustments Fair Value Inputs, Market Conditions Adjustments Proceeds from sales Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds Gross realized gains Available-for-sale Securities, Gross Realized Gains Gross realized losses Available-for-sale Securities, Gross Realized Losses Net gains (losses) from sales Available-for-sale Securities, Gross Realized Gain (Loss) Cash dividends, per share Common Stock, Dividends, Per Share, Declared Shares granted to directors Net unrealized gain on securities available for sale, gross Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Before Taxes Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Before Taxes Net unrealized gain on securities available for sale, tax Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Tax Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Tax Net unrealized gain on securities available for sale, net Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Net unrealized loss on other-than-temporarily impaired securities available for sale, gross Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Not Credit Loss, Gross Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Not Credit Loss, Gross Net unrealized loss on other-than-temporarily impaired securities available for sale, tax Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Not Credit Loss, Tax Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Not Credit Loss, Tax Net unrealized loss on other-than-temporarily impaired securities available for sale, net Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Not Credit Loss, Net of Tax, Available-for-sale, Debt Securities Net unamortized pension costs, gross Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Before Tax Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Before Tax Net unamortized pension costs, tax Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax Net unamortized pension costs, net Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax Net unrealized loss on cash flow hedge, gross Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Before Tax Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Before Tax Net unrealized loss on cash flow hedge, tax Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Tax Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Tax Net unrealized (loss) gain on cash flow hedge, net Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax Accumulated other comprehensive income (loss), gross Accumulated Other Comprehensive Income (Loss), Before Taxes Accumulated Other Comprehensive Income (Loss), Before Taxes Accumulated other comprehensive income (loss), tax Accumulated Other Comprehensive Income (Loss), Tax Accumulated Other Comprehensive Income (Loss), Tax Accumulated other comprehensive income (loss), net Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Underlying Asset Class [Axis] Underlying Asset Class [Axis] Underlying Asset Class [Domain] Underlying Asset Class [Domain] Collateralized Debt Obligations Mortgage Derivatives Mortgage Derivatives [Member] Mortgage Derivatives [Member] Interest Rate Swap IRLC and FSA Interest Rate Lock Commitments and Forward Sale Agreements [Member] Interest Rate Lock Commitments and Forward Sale Agreements [Member] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Beginning balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Other-than-temporary impairment included in earnings Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net Other-than-temporary impairment (included in) transferred from other comprehensive income Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Income (Loss), before Tax, Including Portion Attributable to Noncontrolling Interest Other gains/losses included in other comprehensive income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Net swap settlement recorded Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements IRLC and FSA issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issues IRLC and FSA expirations and fair value changes included in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings IRLC transfers into closed loans/FSA transferred on sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net Ending balance The amount of total gains or losses for the period included in earnings attributable to the change in unrealized gains or losses relating to assets still held at the reporting date Fair Value, Assets Measured on Recurring Basis, Gains (Losses) Included in Earnings Attributable to Change in Unrealized Gains (Losses), Held at Reporting Date Fair Value, Assets Measured on Recurring Basis, Gains (Losses) Included in Earnings Attributable to Change in Unrealized Gains (Losses), Held at Reporting Date Income Statement [Abstract] Interest income: Interest and Dividend Income, Operating [Abstract] Interest and fees on loans Interest and Fee Income, Loans and Leases Held-in-portfolio Interest on loans held for sale Interest and Fee Income, Loans and Leases Held-for-sale Taxable investments Interest Income, Securities, Taxable Tax-exempt investments Interest Income, Securities, Tax Exempt Federal funds sold Interest Income, Federal Funds Sold Interest bearing bank balances Interest Income, Deposits with Financial Institutions Total interest income Interest and Dividend Income, Operating Interest expense: Interest Expense [Abstract] Deposits Interest Expense, Deposits Federal funds purchased and repurchase agreements Interest Expense, Federal Funds Purchased and Securities Sold under Agreements to Repurchase Other borrowings Interest Expense, Other borrowings Interest expense incurred during the reporting period on other borrowings. Junior subordinated debt Total interest expense Interest Expense Net interest income Interest Income (Expense), Net Provision for loan losses Provision for Loan and Lease Losses Net interest income after provision for loan losses Interest Income (Expense), after Provision for Loan Loss Noninterest income: Noninterest Income [Abstract] Deposit account income Fees and Commissions, Depositor Accounts Mortgage banking income Fees and Commissions, Mortgage Banking Agency commission income Insurance Commissions and Fees Trust and brokerage income Fees and Commissions, Fiduciary and Trust Activities Bank owned life insurance income Bank Owned Life Insurance Income Other income Noninterest Income, Other Operating Income Securities gains (losses), net Total noninterest income Noninterest Income Noninterest expenses: Noninterest Expense [Abstract] Salaries and employee benefits Labor and Related Expense Net occupancy expenses Occupancy, Net Equipment expenses Equipment Expense Software and processing expenses Information Technology and Data Processing Telecommunication expenses Communication Marketing and business development expenses Marketing and Advertising Expense Foreclosed property expenses Foreclosed Real Estate Expense FDIC insurance assessments Federal Deposit Insurance Corporation Premium Expense Intangible asset amortization Other expenses Other Noninterest Expense Total noninterest expenses Noninterest Expense Income before income taxes Dividends and accretion on preferred stock Net income allocated to common shareholders Net Income Attributable To Common Shareholders After Earnings Allocated To Participating Share Awards And Other Items Net Income Attributable To Common Shareholders After Earnings Allocated To Participating Share Awards And Other Items. Earnings per share: Basic (in dollars per share) Diluted (in dollars per share) Pension and Other Employee Benefit Plans Pension and Other Postretirement Benefits Disclosure [Text Block] Variable Interest Entities Consolidation Of Variable Interest Entities Disclosure [Text Block] Consolidation Of Variable Interest Entities Disclosure[Text Block] Investment Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Accumulated Other Comprehensive Income (Loss) Comprehensive Income (Loss) Note [Text Block] Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Share-based compensation Share-based Compensation Amortization of pension costs Amortization Of Pension And Postretirement Costs Amortization of unrecognized gains and losses and prior service costs of pension and postretirement benefit plans. Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Net investment amortization Accretion (Amortization) of Discounts and Premiums, Investments Net change in unearned fees/deferred costs on loans Amortization of Deferred Loan Origination Fees, Net Capitalized dividends on FHLB stock Other Noncash Income Gain on securities available for sale Gain on loans held for sale Gain (Loss) on Sale of Loans and Leases Other real estate losses Gains (Losses) on Sales of Other Real Estate Other asset sales losses Gain (Loss) on Sale of Other Assets Deferred income taxes Originations of loans held for sale, net of repayments Payments for Origination of Mortgage Loans Held-for-sale Sales proceeds of loans held for sale Proceeds from Sale of Mortgage Loans Held-for-sale (Increase) decrease in: Increase (Decrease) in Operating Assets [Abstract] Accrued interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Cash surrender value of bank owned life insurance Other assets Increase (Decrease) in Other Operating Assets Increase (decrease) in: Increase (Decrease) in Operating Liabilities [Abstract] Accrued interest payable Increase (Decrease) in Interest Payable, Net Other liabilities Increase (Decrease) in Other Operating Liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Purchases of securities available for sale Payments to Acquire Available-for-sale Securities Sales of securities available for sale Proceeds from Sale of Available-for-sale Securities Maturities of securities available for sale Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Purchases of loans held for investment Payments to Acquire Loans Held-for-investment Net decrease in other loans held for investment Payments for (Proceeds from) Loans and Leases Net (increase) decrease in: Payments for (Proceeds from) Investments [Abstract] Interest bearing bank balances Proceeds from (Payments for) in Interest-bearing Deposits in Banks Bank premises and equipment Payments to Acquire Property, Plant, and Equipment Net purchases of bank owned life insurance Payments for (Proceeds from) Life Insurance Policies Proceeds from sales of other real estate and other repossessed assets, net of improvements Proceeds from Sale of Foreclosed Assets Net redemptions of FHLB stock Payments for (Proceeds from) Federal Home Loan Bank Stock Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Net increase (decrease) in deposits Increase (Decrease) in Deposits Net increase (decrease) in short-term borrowings Increase (Decrease) in Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Net Repayments of other borrowings Repayments of Other Debt Common dividends paid Payments of Ordinary Dividends, Common Stock Preferred dividends paid Payments of Ordinary Dividends, Preferred Stock and Preference Stock Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Net decrease in cash and due from banks Cash and Cash Equivalents, Period Increase (Decrease) Cash and due from banks at January 1 Cash and due from banks at March 31 Supplemental disclosures: Supplemental Cash Flow Information [Abstract] Total interest paid Interest Paid Total income taxes paid Income Taxes Paid Transfers of loans from held for sale to held for investment Transfer of Loans Held-for-sale to Portfolio Loans Transfers of loans to foreclosed property Transfer From Loans To Foreclosed Assets Transfer From Loans To Foreclosed Assets U. S. Treasury preferred dividend accrued but unpaid Preferred Dividends Accrued Not Yet Paid Preferred Dividends Accrued Not Yet Paid Accretion on U. S. Treasury preferred stock Accretion on U. S. Treasury preferred stock Accretion on U.S. Treasury preferred stock Other Than Mortgage Backed Securities [Member] Other Than Mortgage Backed Securities [Member] Other Than Mortgage Backed Securities [Member] Amortized Cost: Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] One year or less, amortized cost Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost Basis After one through five years, amortized cost Available-for-sale Securities, Debt Maturities, Rolling Year Two Through Five, Amortized Cost Basis After five through ten years, amortized cost Available-for-sale Securities, Debt Maturities, Rolling Year Six Through Ten, Amortized Cost Basis After ten years, amortized cost Available-for-sale Securities, Debt Maturities, Rolling after Year Ten, Amortized Cost Basis Available-for-sale securities, amortized cost Available-for-sale Securities, Debt Maturities, Amortized Cost Basis Fair Value: Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] One year or less, fair value Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Fair Value After one through five years, fair value Available-for-sale Securities, Debt Maturities, Rolling Year Two Through Five, Fair Value After five through ten years, fair value Available-for-sale Securities, Debt Maturities, Rolling Year Six Through Ten, Fair Value After ten years, fair value Available-for-sale Securities, Debt Maturities, Rolling after Year Ten, Fair Value Available-for-sale securities, fair value Available-for-sale Securities, Debt Securities Schedule of Preferred Stock Schedule of Stock by Class [Table Text Block] Required clearning balance, by Federal Reserve Cash Reserve Required Under Federal Banking Regulations, Minimum Cash Reserve Required Under Federal Banking Regulations, Minimum Vault cash held Actual Cash Reserve Held Under Federal Banking Regulations Actual Cash Reserve Held Under Federal Banking Regulations Quarterly maximum dividend per share allowed under Exchange Agreement Maximum Quarterly Dividend per Common Share Allowed Under Exchange Agreement Related to the Tarp Community Development Capital Initiative Maximum Quarterly Dividend per Common Share Allowed Under Exchange Agreement Related to the Tarp Community Development Capital Initiative Annual maximum dividend per share allowed under Exchange Agreement Maximum Annual Dividend per Common Share Allowed Under Exchange Agreement Related to the Tarp Community Development Capital Initiative Maximum Annual Dividend per Common Share Allowed Under Exchange Agreement Related to the Tarp Community Development Capital Initiative