Document and Entity Information [Abstract] Document And Entity Information [Abstract] Statement [Table] Statement [Line Items] Document Type Amendment Flag Document Period End Date Document Fiscal Period Focus Document Fiscal Year Focus Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Entity Common Stock, Shares Outstanding Consolidated Balance Sheets [Abstract] Assets Cash and Due from Banks Cash and Due from Banks Cash and Due from Banks Cash and due from banks Cash and Due from Banks, Total Interest-bearing Deposits in Banks and Other Financial Institutions Interest-bearing deposits with other institutions Cash, Cash Equivalents, and Federal Funds Sold Total cash and cash equivalents Cash and short-term investments Securities available for sale, at fair value Available-for-sale Securities, Total Restricted Investments Restricted investments Loans and Leases Receivable, Gross, Carrying Amount Financing Receivables Financing Receivables Ending Balance Total Loans Total Loans Loans Loans, allowance for loan losses Allowance for loan losses Loans and Leases Receivable, Allowance, Ending Balance Loans and Leases Receivable, Allowance, Beginning Balance Loans and Leases Receivable, Allowance, Total Allowance for loan losses Loans, net of allowance for loan losses of $7,833 in 2010 and $5,970 in 2009 Net Loans Loans, net Bank premises and equipment, net Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Total Real Estate Acquired Through Foreclosure Other real estate owned, net of allowance Other real estate owned Other assets Other Assets, Total Assets, Total Total assets Liabilities and Shareholders' Equity Noninterest bearing demand deposits Noninterest-bearing Deposit Liabilities, Total Noninterest bearing demand deposits Savings and interest bearing demand deposits Savings and interest bearing demand deposits Savings and interest bearing demand deposits Time deposits Time deposits Total deposits Total deposits Deposits Federal funds purchased and securities sold under agreements to repurchase Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Total Long-term Federal Home Loan Bank Advances Federal Home Loan Bank advances Long-term Federal Home Loan Bank Advances, Total Federal Home Loan Bank advances Preferred Capital Notes Of Trust Preferred Capital Notes Of Trust Trust preferred capital notes Trust preferred capital notes Other liabilities Other Liabilities, Total Liabilities Total liabilities Shareholders' Equity Preferred stock, $10 par value; 500,000 shares authorized and unissued Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred Stock, Value, Issued, Total Common stock, $2.50 par value; authorized 10,000,000 shares; issued 2010, 3,254,204 shares; issued 2009, 3,217,874 shares Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common stock, $2.50 par value; authorized 10,000,000 shares; issued 2012, 3,324,636; issued 2011, 3,286,992 Common Stock, Value, Issued, Total Common stock, $2.50 par value; authorized 10,000,000 shares; issued 2011, 3,263,590; issued 2010, 3,249,477 Surplus Additional Paid in Capital, Ending Balance Additional Paid in Capital, Beginning Balance Additional Paid in Capital, Total Retained earnings Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Total Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Stockholders' Equity Attributable to Parent Balance Balance Total shareholders' equity Liabilities and Equity Total liabilities and shareholders' equity Preferred stock, par value Preferred stock, shares authorized Preferred stock, shares issued Preferred stock, shares unissued Preferred Stock, Shares Issued, Total Common stock, par value Common stock, shares authorized Common stock, shares issued Common Stock, Shares, Issued, Total Consolidated Statements Of Income [Abstract] Interest and Dividend Income Interest and fees on loans Interest and Fee Income, Loans and Leases, Total Interest and dividends on securities available for sale: Taxable interest income Interest income exempt from federal income taxes Dividends Interest on deposits in banks Interest Income, Deposits with Financial Institutions, Total Total interest and dividend income Total interest and dividend income Interest Expense Interest on deposits Interest Expense, Deposits, Total Interest Expense, Federal Funds Purchased and Securities Sold under Agreements to Repurchase Interest on federal funds purchased and securities sold under agreements to repurchase Interest Expense, Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Total Interest on Federal Home Loan Bank advances Interest Expense, Borrowings, Total Interest on trust preferred capital notes Interest on interest rate swap Interest on interest rate swap Total interest expense Total interest expense Net interest income Net interest income Provision For Loan Losses Provision For Loan Losses Provision for loan losses Provision for Loan and Lease Losses, Total Net interest income after provision for loan losses Net interest income after provision for loan losses Noninterest Income Income from fiduciary activities Service charges on deposit accounts Other service charges and fees Gain (loss) on securities (Gain) on the sale of securities Gain on sale of securities Sales and calls of securities available for sale, net gain Gain (Loss) on Sale of Securities, Net, Total Gain (loss) on securities Other operating income (loss) Other operating income (loss) Noninterest Income, Other, Total Other operating income Total noninterest income Total noninterest income Noninterest Expenses Labor and Related Expense Salaries and employee benefits Labor and Related Expense, Total Occupancy expenses Equipment expenses Advertising and marketing expenses Marketing and Advertising Expense, Total Stationery and supplies Supplies and Postage Expense, Total ATM network fees ATM network fees Other Real Estate Owned Expense Other Real Estate Owned Expense Other real estate owned expense Loss on the sale of other real estate owned (Gain) loss on the sale of other real estate owned (Loss) gain on the sale of other real estate owned (Gain) loss on the sale of other real estate owned FDIC assessment Information Technology and Data Processing Computer software expense Bank Franchise Tax Bank Franchise Tax Bank franchise tax Professional Fees Professional fees Other operating expenses Total noninterest expenses Total noninterest expenses Income (loss) before income taxes Income before income taxes Income Tax (Benefit) Expense Income Tax Expense (Benefit), Total Income Tax Expense Net income Net income Earnings Per Common Share [Abstract] Earnings Per Share Net income per common share, basic Earnings Per Share, Basic, Total Net income per common share, diluted Earnings Per Share, Diluted, Total Statement of Other Comprehensive Income [Abstract] Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income: Other Comprehensive Income, Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Unrealized gain on available for sale securities, net of deferred income taxes Unrealized gain on available for sale securities, net of deferred income taxes of $151 and $445 for the three months ended September 30, 2012 and 2011, respectively and $437 and $956 for the nine months ended September 30, 2012 and 2011, respectively Other Comprehensive Income, Derivatives Qualifying as Hedges, Net of Tax Change in market value of interest rate swap, net of deferred income taxes of $18 in 2012 and $38 in 2011 Other Comprehensive Income, Derivatives Qualifying as Hedges, Net of Tax, Total Change in market value of interest rate swap, net of deferred income taxes of $14 and $100 for the three months ended September 30, 2012 and 2011, respectively and $31 and $139 for the nine months ended September 30, 2012 and 2011, respectively Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other comprehensive income Total other comprehensive income Comprehensive Income, Net of Tax, Attributable to Parent Other comprehensive income Total comprehensive income Other Comprehensive Income, Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax Unrealized gain on available for sale securities, deferred income taxes Other Comprehensive Income, Derivatives Qualifying as Hedges, Tax Effect Change in market value of interest rate swap, deferred income taxes Other Comprehensive Income, Derivatives Qualifying as Hedges, Tax Effect, Total Consolidated Statements Of Changes In Shareholders' Equity [Abstract] Statement, Scenario [Axis] Scenario Unspecified [Domain] Scenario, Unspecified [Domain] Common Stock [Member] Common Stock [Member] Additional Paid In Capital [Member] Surplus [Member] Retained Earnings [Member] Retained Earnings [Member] Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Income [Member] Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Restricted stock awards, stock incentive plan Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures, Total Restricted stock awards, stock incentive plan Income Tax Benefit On Vesting Of Restricted Stock Income tax benefit on vesting of restricted stock Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Value Stock-based compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Total Stock Issued During Period, Value, Dividend Reinvestment Plan Issuance of common stock, dividend investment plan Issuance of common stock, dividend investment plan Stock Issued During Period, Value, Employee Benefit Plan Issuance of common stock, employee benefit plan Issuance of common stock, employee benefit plan Issuance of common stock, employee benefit plan Dividends, Common Stock Dividends declared Dividends declared (per share) Dividends, Common Stock, Total Dividends declared Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Issuance of restricted stock, stock incentive plan, shares Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total Stock Issued During Period, Shares, Dividend Reinvestment Plan Issuance of common stock, dividend investment plan, shares Stock Issued During Period, Shares, Employee Benefit Plan Issuance of common stock, employee benefit plan Common Stock, Dividends, Per Share, Declared Dividends declared, per share Consolidated Statements Of Cash Flows [Abstract] Cash Flows from Operating Activities Adjustments to reconcile net income to net cash provided by operating activities: Depreciation Depreciation, Total Amortization Of Intangible And Other Assets Amortization Of Intangible And Other Assets Amortization of intangible and other assets Provision for Other Real Estate Owned Provision for other real estate owned Loss on the sale and disposal of assets Loss on the sale of bank premises and equipment Gains (Losses) on Sales of Assets, Total Gain Loss On Sales Of Repossessed Assets Loss on the sale of repossessed assets Loss on the sale of repossessed assets Share-based Compensation Stock-based compensation expense Share-based Compensation, Total Accrual of restricted stock awards Accretion (Amortization) of Discounts and Premiums, Investments Premium amortization on securities, net Premium amortization (discount accretion) on securities, net Changes in assets and liabilities: (Increase) in other assets (Increase) decrease in other assets (Increase) in other assets Increase (Decrease) in Other Operating Assets, Total Increase in other assets Increase (Decrease) in Operating Liabilities Increase (Decrease) in Operating Liabilities, Total Increase in other liabilities Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Cash Flows from Investing Activities Proceeds from Sale and Maturity of Available-for-sale Securities Proceeds from maturities and principal payments of securities available for sale Proceeds from Sale and Maturity of Available-for-sale Securities, Total Proceeds from Sale of Available-for-sale Securities Sales and calls of securities available for sale Proceeds from Sale of Available-for-sale Securities, Total Proceeds from the sale of securities Payments to Acquire Available-for-sale Securities Purchases of securities available for sale Purchases of securities available for sale Payments to Acquire Available-for-sale Securities, Total Proceeds from Sale of Restricted Investments Proceeds from the sale of restricted investments Payments to Acquire Property, Plant, and Equipment Purchases of bank premises and equipment Purchases of bank premises and equipment Payments to Acquire Property, Plant, and Equipment, Total Proceeds from Sale of Property, Plant, and Equipment Proceeds from the sale of bank premises and equipment Proceeds from the sale of bank premises and equipment Proceeds from Sale of Property, Plant, and Equipment, Total Proceeds from Sale of Other Real Estate Proceeds from the sale of other real estate owned Proceeds from the Sale of Repossessed Assets Proceeds from the sale of repossessed assets Payments for (Proceeds from) Loans and Leases Net (increase) in loans Payments for (Proceeds from) Loans and Leases, Total Net decrease (increase) in loans Net Cash Provided by (Used in) Investing Activities Net cash (used in) investing activities Cash Flows from Financing Activities Increase Decrease In Deposits Net increase (decrease) in demand deposits, money market and savings accounts Increase (Decrease) in Deposits, Total Net increase in demand deposits, money market and savings accounts Increase (Decrease) in Time Deposits Net (decrease) increase in certificates of deposit Increase (Decrease) in Time Deposits, Total Net increase (decrease) in certificates of deposit Increase (Decrease) in Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Net Net (decrease) in federal funds purchased and securities sold under agreements to repurchase Increase (Decrease) in Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Net, Total Net increase in federal funds purchased and securities sold under agreements to repurchase Increase Decrease In Federal Home Loan Bank Advances Net Increase Decrease In Federal Home Loan Bank Advances Net Net (decrease) in Federal Home Loan Bank advances Issuance of common stock, employee benefit plan. Issuance of Common Stock Employee Benefit Plan Issuance of common stock, employee benefit plan Payments of Dividends Cash dividends paid Payments of Dividends, Total Cash dividends paid Net Cash Provided by (Used in) Financing Activities Net cash (used in) provided by financing activities Cash and Cash Equivalents, Period Increase (Decrease) (Decrease) increase in cash and cash equivalents Increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) [Abstract] Cash and Cash Equivalents Cash and Cash Equivalents, at Carrying Value Ending Beginning Total cash and cash equivalents Supplemental Disclosures of Cash Flow Information Interest Paid Interest Paid, Total Interest Income Taxes Paid Income taxes Supplemental Schedule of Noncash Investing and Financing Activities: Unrealized Gain (Loss) on Investments Unrealized gain (loss) on securities available for sale Unrealized Gain (Loss) on Investments, Total Unrealized gain on securities available for sale Amount of unrealized gain (loss) related to derivatives designated as cash flow hedging instruments, recorded in results of operations to the extent that the cash flow hedge is determined to be effective. Change In Market Value Of Interest Rate Swap Non Cash Change in market value of interest rate swap Transfer to Other Real Estate Other real estate acquired in settlement of loans Stock Issued Issuance of common stock, dividend investment plan General [Abstract] Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] General Stock-Based Compensation Plan [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock-Based Compensation Plan Earnings Per Share [Text Block] Earnings Per Common Share Securities [Abstract] Available-for-sale Securities [Text Block] Securities Allowance For Loan Losses [Abstract] Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Allowance For Loan Losses Loans Troubled Debt Restructurings [Abstract] Troubled Debt Restructurings [Text Block] Troubled Debt Restructurings [Text Block] Troubled Debt Restructurings Deposits [Abstract] Deposit Liabilities Disclosures [Text Block] Deposits Composition Of Deposits Pension And Postretirement Benefit Plans [Abstract] Pension and Other Postretirement Benefits Disclosure [Text Block] Pension And Postretirement Benefit Plans Trust Preferred Capital Notes [Abstract] Trust Preferred Capital Notes [Text Block] Trust Preferred Capital Notes Text Block TrustPreferredCapitalNotesTextBlock Trust Preferred Capital Notes Fair Value Measurements [Abstract] Fair Value Disclosures [Text Block] Fair Value Measurements Derivative Instruments And Hedging Activities [Abstract] Derivative Instruments and Hedging Activities Disclosure [Text Block] Derivative Instruments And Hedging Activities New Branch Construction [Abstract] New Branch Construction [Abstract] New Branch Construction [Table Text Block] New Branch Construction [Table Text Block] New Branch Construction Recent Accounting Pronouncements [Abstract] Description of New Accounting Pronouncements Not yet Adopted [Text Block] Recent Accounting Pronouncements Subsequent Events [Abstract] Subsequent Events [Text Block] Subsequent Events Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] Restricted Stock Activity Schedule of Weighted Average Number of Shares [Table Text Block] Weighted Average Number Of Shares Used In Computing Earnings Per Share Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Amortized Costs And Fair Values Of Securities Available For Sale Schedule of Unrealized Loss on Investments [Table Text Block] Fair Value And Gross Unrealized Losses For Securities Available For Sale Schedule composition of restricted investments [Table Text Block] Schedule Composition Of Restricted Investments [Table Text Block] Restricted Investments Allowance for Credit Losses on Financing Receivables [Table Text Block] Changes In Allowance For Loan Losses Schedule of Financing Receivables, Non Accrual Status [Table Text Block] Nonaccrual And Past Due Loans By Class Schedule of allowance for loan losses by segment [Table Text Block]. Schedule Of Allowance For Loan Losses By Segment [Table Text Block] Allowance For Loan Losses By Segment Impaired Financing Receivables [Table Text Block] Impaired Loans By Class Financing Receivable Credit Quality Indicators [Table Text Block] Credit Quality Information By Class Troubled Debt Restructurings on Financing Receivables [Table Text Block] Schedule Of Troubled Debt Restructurings On Financing Receivables Loans By Class Of Financing Receivable Modified As TDRs [Table Text Block] Loans By Class Of Financing Receivable Modified As TDRs [Table Text Block] Loans By Class Of Financing Receivable Modified As TDRs Composition Of Deposits [Table Text Block] Composition Of Deposits [Table Text Block] Composition Of Deposits Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Financial Assets And Liabilities Measured At Fair Value On A Recurring Basis Fair Value Inputs, Assets, Quantitative Information [Table Text Block] Quantitative Information About Level 3 Fair Value Measurements For Certain Financial Assets Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Table Text Block] Financial And Nonfinancial Assets Measured At Fair Value On A Nonrecurring Basis Level Three Financial Assets Measured At Estimated Fair Value On Nonrecurring Basis Level Three Financial Assets Measured At Estimated Fair Value On Nonrecurring Basis [Table Text Block] Level 3 Financial Assets Measured At Estimated Fair Value On Nonrecurring Basis Fair Value, by Balance Sheet Grouping [Table Text Block] Company's Financial Instruments Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Summary Of Fair Value Of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Effect Of The Derivative Instrument On The Consolidated Balance Sheet, Consolidated Statements Of Income Consolidated Financial Ownership Wholly Owned Subsidiary Percentage Consolidated Financial Ownership Wholly Owned Subsidiary Percentage Ownership percentage in subsidiaries Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Title of Individual [Axis] Title Of Individual With Relationship To Entity [Domain] Title of Individual with Relationship to Entity [Domain] Management [Member] Management [Member] Outside Directors [Member] Outside Directors [Member] Outside Directors [Member] Executive Officer [Member] Executive Officers [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Stock Issued During Period, Shares, Share-based Compensation Issuance of common stock, employee benefit plan shares Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures, Total Stock incentive plan, authorized common stock Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Vesting service period of grants to executive officers Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Shares, Nonvested, end of period Shares, Nonvested, beginning of period Shares, Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Shares, Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Shares, Vested Shares, Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Shares, Forfeited Shares, Forfeited 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, Nonvested, end of period Weighted Average Grant Date Fair Value, Nonvested, beginning of period 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, Granted 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, Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period, Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value, Forfeited Weighted Average Number of Shares Outstanding, Basic Average number of common shares outstanding Weighted Average Number of Shares Outstanding, Basic, Total Weighted Average Number Diluted Shares Outstanding Adjustment Effect of dilutive common stock Average number of common shares outstanding used to calculate diluted earnings per share Weighted Average Number of Shares Outstanding, Diluted Effect of dilutive common stock Average number of common shares outstanding used to calculate diluted earnings per share Pledged Financial Instruments, Not Separately Reported, Securities Securities pledged as collateral Pledged Financial Instruments, Not Separately Reported, Securities, Total Carrying value of securities pledged as collateral Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Gross unrealized losses on available for sale securities Debt securities included in gross unrealized losses on available for sale securities Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities, Major Types of Debt and Equity Securities [Axis] Major Types Of Debt And Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] U S Government Corporations And Agencies Securities [Member] Obligations Of U.S. Government Corporations And Agencies [Member] Mortgage Backed Securities [Member] Mortgage-Backed Securities [Member] U S States And Political Subdivisions [Member] Obligations Of States And Political Subdivisions [Member] Corporate Debt Securities [Member] Corporate Securities [Member] Equity Securities [Member] Equity Securities [Member] Schedule of Available-for-sale Securities [Line Items] Available-for-sale Securities, Amortized Cost Basis Amortized Cost Cost Available-for-sale Securities, Gross Unrealized Gains Gross Unrealized Gains Available-for-sale Securities, Gross Unrealized Gains, Total Available-for-sale Securities, Gross Unrealized Losses Gross Unrealized (Losses) Gross Unrealized (Losses) Available-for-sale Securities, Gross Unrealized Losses, Total Available-for-sale Securities, Fair Value Disclosure Fair Value Fair Value Securities Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Fair Value, Less than 12 months Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses Gross Unrealized Losses, Less than 12 months " Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Fair Value, 12 months or more Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses Gross Unrealized Losses, 12 months or more Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Fair Value, Total Fair Value, Total Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Gross Unrealized Losses, Total Gross Unrealized Losses, Total Carrying Value Option Qualitative Disclosures Related To Election [Table] Carrying Value Option Qualitative Disclosures Related To Election [Table] Carrying Value, Option, Qualitative Disclosures Related To Election, By Eligible Item Or Group [Axis] Carrying Value, Option, Qualitative Disclosures Related To Election, By Eligible Item Or Group [Axis] Carrying Value, Option, Qualitative Disclosures Related To Election, By Eligible Item Or Group [Domain] Carrying Value Option Qualitative Disclosures Related To Election By Eligible Item Or Group [Domain] Carrying Value, Option, Qualitative Disclosures Related To Election, By Eligible Item Or Group [Domain] Federal reserve bank stock [Member] Federal Reserve Bank Stock [Member] Federal Reserve Bank Stock [Member] Investment In Federal Home Loan Bank Stock [Member] Federal Home Loan Bank Stock [Member] Community bankers bank stock [Member] Community Bankers Bank Stock [Member] Community Bankers' Bank Stock [Member] Carrying Value Qualitative Disclosures Related To Election [Line Items] Carrying Value Qualitative Disclosures Related To Election [Line Items] Financing Receivable, Allowance for Credit Losses Ending Balance Beginning Balance Financing Receivable, Allowance for Credit Losses, Provisions Provision charged to operating expense Provision Provision charged to operating expense Provision for Loan, Lease, and Other Losses, Total Provision Financing Receivable, Allowance for Credit Losses, Recoveries Recoveries Recoveries added to the allowance Recoveries Financing Receivable, Allowance for Credit Losses, Charge-offs Loan losses charged to the allowance Charge-Offs Loan losses charged to the allowance Loan losses charged to the allowance Charge-Offs Schedule of Financing Receivable, Allowance for Credit Losses [Table] Financing Receivable, Recorded Investment, by Class of Financing Receivable [Axis] Financing Receivable Recorded Investment Class Of Financing Receivable [Domain] Financing Receivable, Recorded Investment, Class of Financing Receivable [Domain] Commercial non real estate commercial and industrial financing receivable [Member]. Commercial Non Real Estate Commercial And Industrial Financing Receivable [Member] Commercial - Non Real Estate Commercial And Industrial [Member] Commercial real estate owner occupied [Member]. Commercial Real Estate Owner Occupied [Member] Commercial Real Estate Owner Occupied [Member] Commercial real estate non owner occupied [Member]. Commercial Real Estate Non Owner Occupied [Member] Commercial Real Estate Non-Owner Occupied [Member] Construction and farmland residential financing receivable [Member]. Construction And Farmland Residential Financing Receivable [Member] Construction And Farmland Residential [Member] Construction and farmland commercial financing receivable [Member]. Construction And Farmland Commercial Financing Receivable [Member] Construction And Farmland Commercial [Member] Consumer installment financing receivable [Member]. Consumer Installment Financing Receivable [Member] Consumer Installment [Member] Residential equity lines financing receivable [Member]. Residential Equity Lines Financing Receivable [Member] Residential Equity Lines [Member] Residential single family financing receivable [Member]. Residential Single Family Financing Receivable [Member] Residential Single Family [Member] Residential multifamily financing receivable [Member]. Residential Multifamily Financing Receivable [Member] Residential Multifamily [Member] All other loans financing receivable [Member]. All Other Loans Financing Receivable [Member] All Other Loans [Member] Financing Receivable, Allowance for Credit Losses [Line Items] Financing Receivable, Recorded Investment, 30 to 59 Days Past Due 30 - 59 Days Past Due Financing Receivable, Recorded Investment, 60 to 89 Days Past Due 60 - 89 Days Past Due Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due 90 or More Days Past Due Financing Receivable, Recorded Investment, Past Due Total Past Due Total Past Due Financing Receivable, Recorded Investment, Current Current Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing 90 or More Days Past Due Still Accruing Financing Receivable, Recorded Investment, Nonaccrual Status Nonaccrual Loans Schedule of Impaired Financing Receivable [Table] Financing Receivable Information by Portfolio Segment [Axis] Financing Receivable Allowance [Domain] Financing Receivable Allowance [Domain] Construction and farmland financing receivable [Member]. Construction And Farmland Financing Receivable [Member] Construction And Farmland [Member] Residential Real Estate [Member] Residential Real Estate [Member] Commercial Real Estate Portfolio Segment [Member] Commercial Real Estate [Member] Commercial Portfolio Segment [Member] Commercial [Member] Consumer Portfolio Segment [Member] Consumer [Member] Unallocated Financing Receivables [Member] Unallocated [Member] Financing Receivable, Impaired [Line Items] Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Ending balance: Individually evaluated for impairment Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Ending balance: collectively evaluated for impairment Financing Receivable, Individually Evaluated for Impairment Ending balance individually evaluated for impairment Financing Receivable, Collectively Evaluated for Impairment Ending balance collectively evaluated for impairment Impaired Financing Receivable With And Without Recorded Allowance Impaired Financing Receivable With And Without Recorded Allowance [Axis] Impaired Financing Receivable With And Without Recorded Allowance Impaired Financing Receivable With And Without Recorded Allowance [Domain] Impaired Financing Receivable With And Without Recorded Allowance [Domain] With No Related Allowance [Member] With No Related Allowance [Member] With No Related Allowance [Member] With An Allowance [Member] With Allowance [Member] With An Allowance Recorded [Member] Residential Portfolio Segment [Member] Residential [Member] Other Loans [Member] Other Loans [Member] All Other Loans [Member] Impaired Financing Receivable, Unpaid Principal Balance Unpaid Principal Balance Impaired Financing Receivable, Unpaid Principal Balance, Total Impaired Financing Receivable, Recorded Investment Recorded Investment Impaired Financing Receivable, Recorded Investment, Total Impaired Financing Receivable, Related Allowance Related Allowance Impaired Financing Receivable, Average Recorded Investment Average Recorded Investment Impaired Financing Receivable, Average Recorded Investment, Total Impaired Financing Receivable, Interest Income, Accrual Method Interest Income Recognized Impaired Financing Receivable, Interest Income, Accrual Method, Total Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Financing Receivable Information by Credit Quality Indicator [Axis] Financing Receivable By Credit Quality Indicator [Domain] Financing Receivable, by Credit Quality Indicator [Domain] Pass [Member] Pass [Member] Internally Assigned Grade [Member] Watch [Member] Special Mention [Member] Special Mention [Member] Substandard [Member] Substandard [Member] Doubtful [Member] Doubtful [Member] Unlikely To Be Collected Financing Receivable [Member] Loss [Member] Performing Financing Receivable [Member] Performing [Member] Nonperforming Financing Receivable [Member] Nonperforming [Member] Financing Receivable, Recorded Investment [Line Items] Credit Quality Loans And Leases Receivable Gross Carrying Amount Credit Quality Loans And Leases Receivable Gross Carrying Amount Financing Receivables Troubled Debt Restructuring, Subsequent Periods [Table] Troubled Debt Restructuring, Subsequent Periods [Table] Financing Receivable, Troubled Debt Restructuring [Axis] Financing Receivable Troubled Debt Restructuring [Domain] Financing Receivable, Troubled Debt Restructuring [Domain] Troubled Debt Restructuring, Subsequent Periods [Line Items] Troubled Debt Restructuring, Subsequent Periods [Line Items] Financing Receivable, Modifications, Number of Contracts Number of troubled debt restructured loans Number of Contracts Troubled Debt Restructuring Loans Troubled Debt Restructuring Loans Total troubled debt restructured loans Number Of Troubled Debt Loans Restructured Number Of Troubled Debt Loans Restructured Number of loans restructured Number Of Troubled Debt Loans Restructured By Changing Amortization Period Number Of Troubled Debt Loans Restructured By Changing Amortization Period Number of loans restructured by changing amortization period Number Of Troubled Debt Loans Restructured By Consolidation Of Debt Number Of Troubled Debt Loans Restructured By Consolidation Of Debt Number of loans restructued by consolidation of debt Number Of Loans Restructured Granting Interest Rate Reductions Number Of Loans Restructured Granting Interest Rate Reductions Loans restructured by granting interest rate reductions Number Of Loans Structured Payment Requirements Modified Number Of Loans Structured Payment Requirements Modified Loans restructured by payment requirements modification Period Past Due Loan Considered Payment Default Period Past Due Loan Considered Payment Default Loan is considered payment default Troubled debt restructuring modifications number of contracts. Troubled Debt Restructuring Modifications Number Of Contracts Number of Contracts Troubled debt restructuring modifications pre modification recorded investment. Troubled Debt Restructuring Modifications Pre Modification Recorded Investment Pre-Modification Outstanding Recorded Investment Troubled debt restructuring modifications post modification recorded investment. Troubled Debt Restructuring Modifications Post Modification Recorded Investment Post-Modification Outstanding Recorded Investment Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down Impairment Accrued Troubled Debt Restructuring, Creditor, Subsequent Periods [Axis] Troubled Debt Restructuring, Creditor, Subsequent Periods [Axis] Troubled Debt Restructuring, Creditor, Subsequent Periods, Contingent Payments, Name [Domain] Troubled Debt Restructuring Creditor Subsequent Periods Contingent Payments Name [Domain] Troubled Debt Restructuring, Creditor, Subsequent Periods, Contingent Payments, Name [Domain] Troubled debt restructurings within previous twelve months [Member] Troubled Debt Restructurings Within Previous Twelve Months [Member] Troubled Debt Restructurings Within Previous Twelve Months [Member] Troubled debt restructuring modifications recorded investment. Troubled Debt Restructuring Modifications Recorded Investment Recorded Investment Interest-bearing Domestic Deposit, Negotiable Order of Withdrawal (NOW) NOW accounts Interest-bearing Domestic Deposit, Money Market Money market accounts Interest-bearing Domestic Deposit, Savings Regular savings accounts Time Deposits, Less than $100,000 Balances of less than $100,000 Time Deposits, $100,000 or More, Domestic Balances of $100,000 and more Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Axis] Defined Benefit Plans [Domain] Defined Benefit Plans and Other Postretirement Benefit Plans [Domain] Other Postretirement Benefit Plans Defined Benefit [Member] Postretirement Benefits [Member] Defined Benefit Plan Disclosure [Line Items] Number Of Retired Employees Provided Health Care And Life Insurance Number Of Retired Employees Provided Health Care And Life Insurance Retired employees receiving health care and life insurance benefits Post retirement benefits, age eligibility requirement Post retirement benefits, age eligibility requirement Post retirement benefits, service eligibility requirement. Post retirement benefits, service eligibility requirement Defined Benefit Plan, Net Periodic Benefit Cost Net periodic benefit cost Net periodic benefit cost Trust Preferred Capital Notes [Table] Trust Preferred Capital Notes [Table] Range [Axis] Range [Member] Range [Domain] Maximum [Member] Maximum [Member] Legal Entity [Axis] Entity [Domain] Entity [Domain] Trust II [Member] Trust Ii [Member] Trust II [Member] Trust Preferred Capital Notes [Line Items] Trust Preferred Capital Notes [Line Items] Trust preferred securities issued by subsidiary trust. Trust preferred securities issued by subsidiary trust Common Stock, Value, Outstanding Common equity issued by subsidiary trust Debt Instrument, Interest Rate at Period End Floating rate of interest Redemption date of securities. Redemption Date Of Securities Redemption date of securities Portion of trust preferred securities in tier one capital, percentage. Portion Of Trust Preferred Securities In Tier One Capital, Percentage Portion of trust preferred securities in Tier 1 capital, percentage Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Financial Instrument [Axis] Transfers And Servicing Of Financial Instruments Types Of Financial Instruments [Domain] Types of Financial Instruments [Domain] Interest Rate Swap [Member] Interest Rate Swap Contracts [Member] Preferred Stock [Member] Equity Securities Bank Preferred Stock [Member] Fair Value, Hierarchy [Axis] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Inputs Level1 [Member] Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] Fair Value Inputs Level2 [Member] Significant Other Observable Inputs (Level 2) [Member] Fair Value Inputs Level3 [Member] Significant Unobservable Inputs (Level 3) [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Duration Of Appraisal Of Real Estate Property Level Three Impaired Loan Duration Of Appraisal Of Real Estate Property Level Three Impaired Loan Duration of appraisal of real estate property to consider fair value is level 3 Assets, Fair Value Disclosure Total assets at fair value Total assets at fair value Assets at fair value Liabilities, Fair Value Disclosure Liabilities, Fair Value Disclosure, Total Total liabilities at fair value Fair Value Inputs, Assets, Quantitative Information [Table] Minimum [Member] Minimum [Member] Asset Class [Axis] Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation By Asset Class [Domain] Fair Value by Asset Class [Domain] Impaired Loans [Member] Impaired Loans [Member] Impaired Loans [Member] Other Real Estate Owned [Member] Other Real Estate Owned [Member] Other Real Estate Owned [Member] Fair Value Inputs, Assets, Quantitative Information [Line Items] Quantitative Information Level Three Nonrecurring Basis Range Quantitative Information Level Three Nonrecurring Basis Range Quantitative information about level 3 nonrecurring basis Financial Assets [Member] Financial Assets [Member] Financial Assets [Member] Nonfinancial Assets [Member] Nonfinancial Assets [Member] Nonfinancial Assets [Member] Fair value of impaired loans. Fair Value Of Impaired Loans Impaired loans Fair Value Assets Measurements On Nonrecurring Basis [Table] Fair Value Assets Measurements On Nonrecurring Basis [Table] Fair Value Assets Measurements On Nonrecurring Basis [Line Items] Fair Value Assets Measurements On Nonrecurring Basis [Line Items] Assets, Fair Value Disclosure, Nonrecurring Balance - January 1, 2012 Assets, Fair Value Disclosure, Nonrecurring, Total Sales Proceeds Fair Value Disclosure Nonrecurring Sales Proceeds Fair Value Disclosure Nonrecurring Sales proceeds Valuation Allowance Fair Value Disclosure Nonrecurring Valuation Allowance Fair Value Disclosure Nonrecurring Valuation allowance Gain Loss On Disposition Of Assets Fair Value Disclosure Nonrecurring Gain Loss On Disposition Of Assets Fair Value Disclosure Nonrecurring (Loss) on disposition Transfers Into Level Three Fair Value Disclosure Nonrecurring Transfers Into Level Three Fair Value Disclosure Nonrecurring Transfers into Level 3 Transfers Out Of Level Three Fair Value Disclosure Nonrecurring Transfers Out Of Level Three Fair Value Disclosure Nonrecurring Transfers out of Level 3 Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value Disclosure Item Amounts [Domain] Fair Value, Disclosure Item Amounts [Domain] Carrying Reported Amount Fair Value Disclosure [Member] Carrying Amount [Member] Estimate Of Fair Value Fair Value Disclosure [Member] Fair Value [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Cash and Cash Equivalents, Fair Value Disclosure Cash and short-term investments Restricted Investments, at Fair Value Restricted Investments Loans Receivable, Fair Value Disclosure Loans, net Accrued interest receivable, fair value disclosure Accrued interest receivable, fair value disclosure Accrued interest receivable Deposits, Fair Value Disclosure Deposits Federal Funds Purchased and Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure Federal funds purchased and securities sold under agreements to repurchase Federal Funds Purchased and Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure, Total Federal Home Loan Bank Borrowings, Fair Value Disclosure Federal Home Loan Bank advances Preferred capital notes of trust, fair value disclosure Preferred capital notes of trust, fair value disclosure Trust preferred capital notes Accrued Liabilities, Fair Value Disclosure Accrued interest payable Derivative Financial Instruments, Liabilities, Fair Value Disclosure Interest rate swap Interest rate swap contract Derivative [Table] Derivative Instrument Risk [Axis] Derivative Contract Type [Domain] Derivative Contract Type [Domain] Derivative [Line Items] Derivative, Inception Date Agreement related to the outstanding trust preferred capital notes, date Derivative effective dates. Derivative Effective Dates Agreement effective, date Notional Amount of Derivatives Notional Amount of Derivatives, Total Notional amount of derivatives Derivative, Maturity Date Agreement expiration date Derivative, Fixed Interest Rate Derivatives, Fair Value, by Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other Liabilities [Member] Other Liabilities [Member] Derivative Instruments in Hedges, Liabilities, at Fair Value Derivative Instruments in Hedges, Liabilities, at Fair Value, Total Derivatives designated as hedging instruments under GAAP, Fair Value Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Amount of Gain (Loss) Recognized in OCI on Derivative (Effective Portion), net of tax Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net, Total Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net, Total Amount of Gain (Loss) Recognized in Income (Ineffective Portion), net of tax Amount Of Contract Amount Of Contract Amount of contract to build branch Number of Stores Number of retail branches Goodwill Impairment Testing More Likely Than Not Minimum Percentage Goodwill Impairment Testing More Likely Than Not Minimum Percentage Minimum percentage required to be "more likely than not"