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 Year Focus Document Fiscal Period Focus Entity Registrant Name Trading Symbol Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Entity Common Stock, Shares Outstanding Consolidated Balance Sheets [Abstract] Class of Stock [Axis] Class Of Stock [Domain] Class of Stock [Domain] Preferred Stock [Member] Preferred Stock [Member] Preferred Class A non-voting [Member] Preferred Class Non Voting [Member] Preferred Class A Non-Voting [Member] Preferred Class B voting [Member] Preferred Class B Voting [Member] Preferred Class B Voting [Member] Assets Abstract ASSETS Cash and Due from Banks Cash and due from banks Cash and Due from Banks, Total Interest earning deposits with banks and other short-term investments Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents end of period Cash and cash equivalents beginning of period Total cash and cash equivalents Total cash and cash equivalents Cash and cash equivalents Investments [Abstract] Investments: Available-for-sale Securities Securities available for sale Securities available for sale, at fair value Available for Sale, Fair Value Available-for-sale Securities, Fair Value Held-to-maturity Securities Securities held to maturity Securities held to maturity (fair value of $498 and $624) Total Held to Maturity Securities Held-to-maturity Securities, Amortized Cost Investments Total investments Loans and Leases Receivable, Gross, Carrying Amount Loans and Leases Receivable, Gross, Carrying Amount, Total Loans Total Total Loans Loans and Leases Receivable, Allowance Less: Allowance for loan losses Loans and Leases Receivable, Allowance, Ending Balance Loans and Leases Receivable, Allowance, Beginning Balance Less: Allowance for loan losses Loans and Leases Receivable, Allowance, Total Allowance for loan losses Loans and Leases Receivable, Net Reported Amount Net loans Net loans Loans, net of allowance for loan losses Federal Home Loan Bank Stock Federal Home Loan Bank stock FHLB stock Property, Plant and Equipment, Net Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Bank premises and equipment, net Property, Plant and Equipment, Net, Total Real Estate Investment Property, at Cost Investment in real estate limited partnerships Real Estate Investment Property, at Cost, Total Other Assets Other assets Other Assets, Total Assets Total assets Total assets Liabilities Abstract LIABILITIES Noninterest-bearing Deposit Liabilities Demand (noninterest bearing) Noninterest-bearing Deposit Liabilities, Total Deposits, Savings Deposits Savings, interest bearing checking and money market accounts Time deposits $100 thousand and greater Time Deposits, $100,000 or More, Total Other time deposits Deposits Total deposits Securities Sold Under Agreements to Repurchase and Other Short-Term Debt Short-term debt Short-term Debt, Total Short-term borrowings Securities Sold under Agreements to Repurchase Securities sold under agreement to repurchase Other Long-term Debt Other long-term debt Other Long-term Debt, Total Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust Junior subordinated debentures issued to unconsolidated subsidiary trust Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Total Junior subordinated debentures issued to unconsolidated subsidiary trust Other Liabilities Other liabilities Other Liabilities, Total Liabilities Total liabilities Total liabilities Commitments and Contingencies' Commitments and contingencies (Note 8) Stockholders' Equity Attributable to Parent [Abstract] SHAREHOLDERS' EQUITY Preferred Stock, Value, Issued Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred stock Preferred Stock, Value, Issued, Total Preferred stock Class A non-voting Shares authorized - 200,000, none outstanding Common Stock, Value, Issued Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common stock, $.01 par value Authorized 10,000,000 shares; issued 6,651,760 at September 30, 2012 and December 31, 2011 Outstanding: 5,955,111 at September 30, 2012 and 5,907,080 at December 31, 2011 Common Stock, Value, Issued, Total Additional Paid in Capital Additional Paid in Capital, Ending Balance Additional Paid in Capital, Beginning Balance Capital in excess of par value Additional Paid in Capital, Total Retained Earnings (Accumulated Deficit) Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained earnings Retained Earnings (Accumulated Deficit), Total The amount allocated to treasury stock. Treasury stock consists of common stock issued, repurchased and held in treasury. Treasury stock also includes common shares held in rabbi trusts related to deferred compensation plans. Treasury Stocks Value Treasury stock, at cost As of December 31, 2011 744,680 As of December 31, 2010 792,497 Treasury stock, at cost: 696,649 shares at September 30, 2012 and 744,680 shares at December 31, 2011 Treasury stock, at cost (720,409 shares at March 21, 2012 and 744,680 shares at December 31, 2011 Includes value of the shares held in rabbi trusts related to deferred compensation plans and the value of restricted stock grants Deferred Compensation Equity and Liability Deferred compensation arrangements Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Common Stockholders' Equity Balance Balance Total shareholders' equity Total shareholders' equity Liabilities and Equity Total liabilities and shareholders' equity Held-to-maturity Securities, Fair Value Securities held to maturity, fair value Held-to-maturity Securities, Fair Value Held-to-maturity Securities, Fair Value Preferred Stock, Shares Authorized Preferred stock, shares authorized Preferred Stock, Shares Outstanding Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Preferred stock, shares outstanding Common Stock, Par or Stated Value Per Share Common stock, par value Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Issued, Total Common Stock, Shares, Outstanding Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Common stock, shares outstanding Number of common shares previously issued and repurchased. Also includes shares held in rabbi trusts related to deferred compensation plans. Rabbi trust shares have voting rights and receive dividends. Treasury Stock Number Of Shares Treasury stock, shares Consolidated Statements Of Income [Abstract] Interest and Dividend Income, Operating [Abstract] INTEREST AND DIVIDEND INCOME Interest and fee income loans and leases Interest and Fee Income, Loans, Commercial, Total Interest and fees on loans Investment Income, Interest and Dividend [Abstract] Investment income: Interest on Debt Securities Interest and dividends on investment securities Interest Income, Deposits with Financial Institutions Interest Income, Deposits with Financial Institutions, Total Interest on interest earning deposits with banks and other short-term investments Interest and Dividend Income, Operating Total interest and dividend income Interest Expense [Abstract] INTEREST EXPENSE Interest expense NOW accounts money market accounts and savings deposits Interest Expense, NOW Accounts, Money Market Accounts, and Savings Deposits, Total Savings, interest bearing checking and money market accounts Interest Expense, Time Deposits, $100,000 or More Time deposits $100 thousand and greater Interest Expense, Time Deposits, Less than $100,000 Other time deposits Interest Expense, Securities Sold under Agreements to Repurchase Securities sold under agreement to repurchase and other short-term debt Interest Expense, Long-term Debt Long-term debt Interest Expense, Long-term Debt, Total Interest Expense Total interest expense Interest Income (Expense), Net Net interest income Savings, NOW and money market accounts Provision for Loan, Lease, and Other Losses Provision (credit) Provision for loan losses Provision for Loan, Lease, and Other Losses, Total Provision for credit losses Interest Income (Expense), after Provision for Loan Loss Net interest income after provision for credit losses Noninterest Income [Abstract] NONINTEREST INCOME Other than Temporary Impairment Losses, Investments Changes in fair value on impaired securities Changes in fair value on impaired securities Changes in fair value on impaired securities Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Total Other-than-temporary impairment losses on investment securities Portion of loss recognized in other comprehensive income (before taxes) Non-credit related (gain) losses on securities not expected to be sold (recognized in other comprehensive income) Portion of loss recognized in other comprehensive income (before taxes) Non-credit related (gain) losses on securities not expected to be sold (recognized in other comprehensive income) Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Income (Loss), before Tax, Including Portion Attributable to Noncontrolling Interest, Total Portion of loss recognized in other comprehensive income (before taxes) OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognized in earnings net Net impairment losses Net impairment losses Net impairment losses Net impairment losses Other-than-temporary impairment losses on investment securities Gain (Loss) on Sale of Securities, Net Net gains on investment securities Net gains on sales of investment securities Gain on investment securities, net Gain (Loss) on Sale of Securities, Net, Total Net (losses) gains on investment securities Trust company income Trust division income Fees and Commissions, Depositor Accounts Service charges on deposits Equity in losses of real estate limited partnerships Equity in losses of real estate limited partnerships Equity in losses of real estate limited partnerships, net Gain (Loss) on Sale of Other Assets Gain on sale of other assets Gain on sale of other assets Noninterest Income, Other Operating Income Other Other noninterest income Noninterest Income Total noninterest income Noninterest Expense [Abstract] NONINTEREST EXPENSE Compensation Labor and Related Expense, Total Compensation and benefits Occupancy, Net Occupancy expense Equipment Expense Equipment expense Professional Fees Legal and professional fees Marketing and Advertising Expense Marketing and Advertising Expense, Total Marketing State franchise taxes State franchise taxes Federal Deposit Insurance Corporation Premium Expense FDIC Insurance Penalty incurred from prepayment of long-term debt. Prepayment penalty Foreclosed Real Estate Expense Other Real Estate Owned ("OREO") expenses Other Noninterest Expense Other Other noninterest expense Noninterest Expense Total noninterest expenses Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income before provision for income taxes Income Tax Expense (Benefit) Income Tax Expense (Benefit), Total Provision for income taxes Net Income (Loss) Attributable to Parent Net income NET INCOME Net income Earnings Per Share, Basic Basic earnings per common share Earnings Per Share, Basic, Total Basic earnings per common share Earnings Per Share, Diluted Diluted earnings per common share Earnings Per Share, Diluted, Total Diluted earnings per common share Consolidated Statements Of Comprehensive Income [Abstract] Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive (loss) income, net of tax: Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss), Net of Tax Change in net unrealized (loss) gain on securities available for sale, net of taxes of $564, $674, $682, and $1,543 net of taxes of $1,034, $840, $869 and $1,419 Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax Reclassification adjustments for net securities gains included in net income, net of taxes of $(26) and $3 Reclassification adjustments for net securities gain included in net income, net of taxes of $9, $(322), $(148) and $(367) Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Change in net unrealized loss on interest rate swaps, net of taxes of $19, $(113), $63 and $(110) Other Comprehensive Income (Loss), Minimum Pension Liability Net Adjustment, Net of Tax Pension liability adjustment, net of taxes of $(213), $93 and $246 Pension liability adjustment, net of taxes of $29, $25, $86 and $74 Pension liability adjustment, net of taxes of $25, $16, $49 and $42 Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Total Other Comprehensive Income (Loss), Net of Tax Other comprehensive (loss) income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income Available-for-sale Securities, Income Tax Expense on Change in Unrealized Holding Gain (Loss) Unrealized (loss) gain on securities available for sale, tax Other Comprehensive Income (Loss), Available-for-sale Securities, Tax, Portion Attributable to Parent, Total Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax Reclassification adjustments for net securities gain included in net income, tax Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax Change in net unrealized loss on interest rate swaps, tax Change in net unrealized loss on interest rate swaps, tax Other Comprehensive Income (Loss), Minimum Pension Liability Net Adjustment, Tax Pension liability adjustment, tax Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax, Total Consolidated Statements Of Cash Flows [Abstract] Net Cash Provided by (Used in) Operating Activities [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Depreciation, Amortization and Accretion, Net Depreciation, Amortization and Accretion, Net, Total Depreciation and amortization Accretion (Amortization) of Discounts and Premiums, Investments Amortization of investment security premiums and accretion of discounts, net Net amortization on investments Stock or Unit Option Plan Expense Stock option expense Gain (Loss) on Sale of Loans and Leases Net gains on sale of loans Net gains on sale of loans Gain (Loss) on Sale of Loans and Leases, Total Gain (Loss) on Sale of Property Plant Equipment Net losses (gains) on disposition of premises and equipment Net (gains) losses on sale of premises, equipment and other assets Net losses (gains) on disposition of premises and equipment Gain (Loss) on Sale of Property Plant Equipment, Total Net gains on sale of premises and equipment Gains (Losses) on Sales of Other Real Estate Net gains and expense recoveries on sales of other real estate owned Gains on sale of other real estate owned Net gains and expense recoveries on sales of other real estate owned Gains on sale of other real estate owned Increase (Decrease) in Operating Capital [Abstract] Changes in assets and liabilities: Increase (Decrease) in Accrued Interest Receivable, Net Increase in interest receivable Increase in interest receivable Increase in interest receivable Increase (Decrease) in Other Operating Assets Increase in other assets Increase in other assets Increase (Decrease) in Other Operating Assets, Total (Increase) decrease in other assets Increase (Decrease) in Interest Payable, Net Increase (decrease) in interest payable Increase (Decrease) in Other Operating Liabilities Increase (Decrease) in Other Operating Liabilities, Total (Decrease) increase in other liabilities Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] CASH FLOWS FROM INVESTING ACTIVITIES: Proceeds from Sale of Available-for-sale Securities Proceeds from Sale of Available-for-sale Securities, Total Proceeds from sales of investment securities available for sale Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Proceeds from maturities of investment securities available for sale Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities Proceeds from maturities of investment securities held to maturity Payments for (Proceeds from) Federal Home Loan Bank Stock Purchases of Federal Home Loan Bank stock, net Investment in FHLBB stock, period decrease Proceeds from redemption of Federal Home Loan Bank stock Investment in FHLBB stock, period decrease Purchases of Federal Home Loan Bank stock, net Payments for (Proceeds from) Federal Home Loan Bank Stock, Total Proceeds from redemption of Federal Home Loan Bank stock Payments to Acquire Available-for-sale Securities Purchases of investment securities available for sale Payments to Acquire Available-for-sale Securities, Total Purchases of investment securities available for sale Proceeds from Loan and Lease Originations and Principal Collections Loan originations in excess of principal payments Proceeds from Loan and Lease Originations and Principal Collections, Total Loan originations in excess of principal payments Proceeds from Sale of Loans Receivable Proceeds from sales of loans, net Proceeds from Sale of Other Assets Proceeds from sale of other assets Proceeds from Sale of Other Property, Plant, and Equipment Proceeds from sale of premises and equipment Proceeds from Sale of Wholly Owned Real Estate and Real Estate Acquired in Settlement of Loans Proceeds from sales of other real estate owned Proceeds from sales of other real estate owned Payments for (Proceeds from) Other Investing Activities Real estate limited partnership investments Real estate limited partnership investments Payments to Acquire Property, Plant, and Equipment Purchases of bank premises and equipment Payments to Acquire Property, Plant, and Equipment, Total Purchases of bank premises and equipment Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] CASH FLOWS FROM FINANCING ACTIVITIES: Increase (Decrease) in Deposits Increase (Decrease) in Deposits, Total Net increase in deposits Proceeds from (Repayments of) Short-term Debt Proceeds from (Repayments of) Short-term Debt, Total Net increase in short-term borrowings Increase (Decrease) in Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Net Increase (Decrease) in Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Net, Total Net decrease in securities sold under agreement to repurchase, short term Repayments of Long-term Debt Principal payments on long-term debt Repayments of Long-term Debt, Total Principal payments on long-term debt Payments of Dividends Cash dividends paid Payments of Dividends, Total Cash dividends paid Proceeds from Sale of Treasury Stock Sale of treasury stock Increase (Decrease) in Deferred Compensation Share-based Compensation, Total Increase in deferred compensation arrangements Proceeds from Stock Options Exercised Proceeds from exercise of stock options, net of withholding taxes Tax Benefit from Exercise of Stock Options Tax benefit from exercise of stock options Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Cash and Cash Equivalents, Period Increase (Decrease) Increase in cash and cash equivalents Supplemental Cash Flow Information [Abstract] SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION: Interest Paid Interest Paid, Total Total interest payments Income Taxes Paid, Net Income Taxes Paid, Net, Total Total income tax payments Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES Distribution of stock under deferred compensation arrangements. Distribution of stock under deferred compensation arrangements Distribution of stock under deferred compensation arrangements Value of stock issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the holder of the stock to reinvest dividends paid to them by the entity on new issues of stock by the entity. Distribution Of Treasury Stock In Lieu Of Cash Dividend Distribution of treasury stock in lieu of cash dividend Transfer to Other Real Estate Transfer of loans to other real estate owned Increase in payable for investments purchased. Increase in Payable for Investments Purchased (Decrease) increase in payable for investments purchased Financial Statement Presentation [Abstract] Significant Accounting Policies [Text Block] Financial Statement Presentation Recent Accounting Pronouncements [Abstract] Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Recent Accounting Pronouncements Investment Securities [Abstract] Marketable Securities [Text Block] Investment Securities Loans And The Allowance For Credit Losses [Abstract] Allowance for Credit Losses [Text Block] Loans And The Allowance For Credit Losses Pension [Abstract] Pension and Other Postretirement Benefits Disclosure [Text Block] Pension Earnings Per Share [Abstract] Earnings Per Share [Text Block] Earnings Per Share Stock Repurchase Program [Abstract] Stock Repurchase Program Stock Repurchase Program Stock Repurchase Program Commitments And Contingencies [Abstract] Commitments and Contingencies Disclosure [Text Block] Commitments And Contingencies Fair Value Of Financial Instruments [Abstract] Fair Value Disclosures [Text Block] Fair Value Of Financial Instruments Derivative Financial Instruments [Abstract] Derivative Instruments and Hedging Activities Disclosure [Text Block] Derivative Financial Instruments Investment [Table Text Block] Summary Of Amortized Cost And Fair Values Of Securitiies Classified As Available For Sale And Held To Maturity Investments Classified by Contractual Maturity Date [Table Text Block] Summary Of Contractual Maturity Distribution Of Debt Securities Classified As Available For Sale And Held To Maturity Summary Of Contractual Maturity Of Debt Securities Schedule of Unrealized Loss on Investments [Table Text Block] Summary Of Gross Unrealized Losses On Investment Securities Available For Sale Allowance for Credit Losses on Financing Receivables [Table Text Block] Loan Loss Experience And Activity In The Allowance For Credit Losses Schedule of Financing Receivables, Non Accrual Status [Table Text Block] Aging Of Past Due Loans, Including Nonaccrual And Restructured Loans, By Class Impaired Financing Receivables [Table Text Block] Impaired Loans By Class Schedule of average recorded investment and interest income recognized. Schedule Of Average Recorded Investment And Interest Income Recognized [Table Text Block] Average Recorded Investment And Interest Income Recognized Average Recorded Investment And Interest Income Recognized Schedule of nonperforming loans [Table Text Block]. Schedule Of Nonperforming Loans [Table Text Block] Nonperforming Loans Troubled Debt Restructurings on Financing Receivables [Table Text Block] Summary Of Restructurings Schedule of nonaccrual loans by class [Table Text Block]. Schedule Of Nonaccrual Loans By Class [Table Text Block] Nonaccrual Loans By Class Financing Receivable Credit Quality Indicators [Table Text Block] Summary Of Loans By Credit Quality Indicator Schedule of Net Benefit Costs [Table Text Block] Net Periodic Benefit Costs Schedule of Earnings Per Share Reconciliation [Table Text Block] Reconciliations Of Calculations Of Basic And Diluted Earnings Per Common Share 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, Assets and Liabilities Measured on Nonrecurring Basis [Table Text Block] Financial Assets Measured At Fair Value On A Nonrecurring Basis Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Assets Measured At Fair Value Using Significant Unobservable Inputs Fair Value, by Balance Sheet Grouping [Table Text Block] Fair Values Of Financial Instruments Schedule of Available-for-sale Securities [Table] Financing Receivable Information by Portfolio Segment [Axis] Financing Receivable Allowance [Domain] Financing Receivable Allowance [Domain] Non-Agency CMO Portfolio [Member] Non Agency Cmo Portfolio [Member] Non-Agency CMO Portfolio [Member] Debt Instrument [Axis] Debt Instrument Name [Domain] Debt Instrument, Name [Domain] Bond One [Member] Bond One [Member] Bond 1 [Member] Bond Two [Member] Bond Two [Member] Bond 2 [Member] Schedule of Available-for-sale Securities [Line Items] Proceeds from Sale of Available-for-sale Securities, Debt Proceeds from sales of available for sale debt securities Available-for-sale Securities, Gross Realized Gains Available-for-sale securities, gross realized gains Available-for-sale Securities, Gross Realized Losses Available-for-sale securities, gross realized losses Number of investment securities. Number of investment securities Available-for-sale Debt Securities, Amortized Cost Basis Cost basis Debt Instrument, Fair Value Disclosure Bond, fair value Investment in Federal Home Loan Bank Stock, Fair Value Disclosure Investment in FHLBB stock FHLB stock Dividend Income On Investment In Federal Home Loan Bank Stock Dividend Income On Investment In Federal Home Loan Bank Stock Dividend income on investment in federal home loan bank stock 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 Treasury Securities [Member] U.S. Treasury Obligations [Member] U S Government Agencies Debt Securities [Member] U.S. Agency Obligations [Member] Federal Home Loan Bank Certificates And Obligations F H L B [Member] FHLB Obligations [Member] Mortgage Backed Securities Issued By U S Government Sponsored Enterprises [Member] Agency MBSs [Member] Collateralized Mortgage Obligations Issued By U.S. Government Sponsored Entities [Member] Collateralized Mortgage Obligations Issued By U S Government Sponsored Entities [Member] Agency CMOs [Member] Mortgage Backed Securities Issued By Private Enterprises [Member] Non-Agency CMOs [Member] Asset Backed Securities [Member] ABSs [Member] Available-for-sale Securities, Amortized Cost Available-for-sale Securities, Amortized Cost Basis, Total Available for Sale, Amortized Cost Available-for-sale Securities, Gross Unrealized Gains Available-for-sale Securities, Gross Unrealized Gains, Total Available for Sale, Gross Unrealized Gains Available-for-sale Securities, Gross Unrealized Losses Non-credit related unrealized losses on other-than-temporarily impaired securities Available-for-sale Securities, Gross Unrealized Losses, Total Available for Sale, Gross Unrealized Losses Held-to-maturity Securities, Unrecognized Holding Gains Held to Maturity, Gross Unrealized Gains Held-to-maturity Securities, Unrecognized Holding Losses Held to Maturity, Gross Unrealized Losses Available-for-sale Securities, Debt Maturities, within One Year, Fair Value Available for Sale (at fair value), Within One Year Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value Available for Sale (at fair value), After One But Within Five Years Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value Available for Sale (at fair value), After Five But Within Ten Years Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Available for Sale (at fair value), After Ten Years Available For Sale Securities Debt Maturities Fair Value Total Available For Sale Securities Debt Maturities Fair Value Total Total Available-for sale Securities, Fair Value Total Available for Sale Securities, Fair Value Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount Held to Maturity, Within One Year Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount Held to Maturity, After One But Within Five Years Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount Held to Maturity, After Five But Within Ten Years Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount Held to Maturity, After Ten Years Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Available-for-sale Securities, Less than 12 months, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses Available-for-sale Securities, Less than 12 months, Loss Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Available-for-sale Securities, 12 months or more, Fair Value Available-for-sale Securities, 12 months or more, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses Available-for-sale Securities, 12 months or more, Loss Available-for-sale Securities, Continuous unrealized loss position, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Available-for-sale Securities, Continuous unrealized loss position, Aggregate Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Schedule of Financing Receivables Past Due [Table] Real Estate Property Ownership [Axis] Real Estate Properties [Domain] Real Estate Properties [Domain] Real estate properties that have been sold. Properties Sold [Member] Properties Sold [Member] Financing Receivable Information by Credit Quality Indicator [Axis] Financing Receivable By Credit Quality Indicator [Domain] Financing Receivable, by Credit Quality Indicator [Domain] Consumer Credit Score [Member] Consumer Credit Score [Member] Performing Financing Receivable [Member] Performing Financing Receivable [Member] Nonperforming Financing Receivable [Member] Payment Default [Member] Doubtful [Member] Payment Default With Foreclusure Proceedings In Process [Member] TDR Loans Non-Accruing [Member] Tdr Loans Non Accruing [Member] Non-Accrual [Member] Financing Receivable Restructured With Longer Terms At Market Rates Financing Receivable Restructured With Longer Terms At Market Rates [Member] Restructured With Longer Terms At Market Rates [Member] Financing Receivable Restructured With Rate Concessions [Member] Financing Receivable Restructured With Rate Concessions [Member] Restructured With Rate Concessions [Member] Restructured [Member] Restructured [Member] Restructured [Member] Default [Member] Default [Member] Default [Member] 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] Residential Real Estate [Member] Real Estate Loans – Residential [Member] Commercial Real Estate [Member] Real Estate Loans – Commercial [Member] Mortgage Loans on Real Estate, Description, Loan Category [Axis] Mortgage Loans On Real Estate Loan Category [Domain] Mortgage Loans on Real Estate, Loan Category [Domain] First Mortgage [Member] First Mortgage [Member] Financing Receivable, Recorded Investment, Past Due [Line Items] Amortization of Deferred Loan Origination Fees, Net Net deferred loan origination fees Net Deferred Loan Origination Fees Deposit Liabilities Reclassified as Loans Receivable Overdrawn deposit balances classified as loan balances Percentage of loans originated in amounts of the appraised value of the property. Percentage Of Loans Originated In Amounts Of The Appraised Value Of The Property Percentage of loans originated in amounts of the appraised value of the property Financing receivable, allowance for credit losses, net loan losses as a percentage of portfolio balances, weighted average period of determination (in years). Financing receivable allowance for credit losses net loan losses as a percentage of portfolio balances weighted average period of determination Net loan losses, weighted average determination period, years Loans and Leases Receivable, Impaired, Nonperforming, Nonaccrual of Interest Total nonaccrual loans Nonaccrual loans Impaired Financing Receivable, Recorded Investment Total impaired loans Carrying value of impaired loans Total nonperforming loans Recorded Investment Impaired Financing Receivable, with Related Allowance, Recorded Investment Impaired loans with specific reserve allocation Impaired Financing Receivable, with No Related Allowance, Recorded Investment Impaired loans with no specific reserve allocation Impaired Financing Receivable, Interest Income, Accrual Method Average balance of impaired loans Impaired Financing Receivable, Interest Income, Accrual Method, Total Interest Income Recognized Number of Real Estate Properties Number of real estate properties Impaired Financing Receivable, Average Recorded Investment Average balance of impaired loans Impaired Financing Receivable, Average Recorded Investment, Total Average Recorded Investment Impaired Financing Receivable, Related Allowance Allowance for loan losses Related allowance Nonaccruing troubled debt restructuring. Nonaccruing Troubled Debt Restructuring Nonaccruing TDR's Financing Receivable, Modifications, Recorded Investment Troubled debt restructured loans ("TDRs") Troubled debt restructured loans ("TDRs") Financing Receivable, Modifications, Number of Contracts Number of loans Interest and Fee Income, Other Loans Interest income on restructured loans Other Real Estate, Foreclosed Assets, and Repossessed Assets OREO balance Other Real Estate, Foreclosed Assets, and Repossessed Assets, Total OREO Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans Amount of interest which was not earned, but which would have been earned had our nonaccrual and restructured loans Commercial, financial and agricultural. Commercial Financial And Agricultural [Member] Commercial, Financial And Agricultural [Member] Municipal loans. Municipal Loans [Member] Municipal Loans [Member] Construction Loans [Member] Real Estate Loans – Construction [Member] Installment loans. Installment Loans [Member] Installment Loans [Member] All other loans. All Other Loans [Member] All Other Loans [Member] Financing Receivable, Allowance for Credit Losses Financing Receivable, Allowance for Credit Losses, Ending Balance Total allowance for credit losses Ending balance Beginning balance Financing Receivable, Allowance for Credit Losses, Beginning Balance Total allowance for credit losses Total allowance for credit losses Financing Receivable, Allowance for Credit Losses, Charge-offs Chargeoffs Chargeoffs Financing Receivable, Allowance for Credit Losses, Recoveries Recoveries Recoveries 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 Financing receivables Ending balance individually evaluated for impairment Financing Receivable, Collectively Evaluated for Impairment Financing receivables Ending balance collectively evaluated for impairment Reserve for undisbursed lines of credit Reserve For Undisbursed Lines Of Credit Reserve for undisbursed lines of credit Second Mortgage [Member] Second Mortgage [Member] Owner occupied [Member]. Owner Occupied [Member] Owner Occupied [Member] Non-owner occupied [Member]. Non Owner Occupied [Member] Non-Owner Occupied [Member] Residential [Member] Residential [Member] Residential [Member] Commercial [Member]. Commercial [Member] Commercial [Member] 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 Over 90 Days Past Due Financing Receivable, Recorded Investment, Past Due Total Past Due Total Past Due Financing Receivable, Recorded Investment, 1 to 29 Days Past Due Current Current Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing Loans greater than 90 days and accruing Greater Than 90 Days and Accruing Finance Receivables With And Without Related Allowance [Axis] Finance Receivables With And Without Related Allowance [Axis] Finance Receivables With And Without Related Allowance [Domain] Finance Receivables With And Without Related Allowance [Domain] Finance Receivables With And Without Related Allowance [Domain] With No Related Allowance Recorded [Member] With No Related Allowance Recorded [Member] With No Related Allowance Recorded [Member] With Related Allowance Recorded [Member] With Related Allowance Recorded [Member] With Related Allowance Recorded [Member] Installment and Other [Member] Installment And Other [Member] Installment and Other [Member] Impaired Financing Receivable, Unpaid Principal Balance Impaired Financing Receivable, Unpaid Principal Balance, Total Unpaid Principal Balance Nonaccrual non-troubled debt restructured loans. Nonaccrual Non-Troubled Debt Restructured loans Nonaccrual loans Nonaccrual loans Nonaccrual non-TDR loans Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Financing Receivable, Troubled Debt Restructurings [Axis] Financing Receivable Troubled Debt Restructuring [Domain] Financing Receivable, Troubled Debt Restructurings [Domain] Financing Receivable, Modifications [Line Items] Number of financing receivables that have been modified by troubled debt restructurings. Financing Receivable Modifications Number Of Contracts Duration Number of loans Troubled debt restructuring modification pre-modification recorded investment. Troubled Debt Restructuring Modification Premodification Recorded Investment Pre-modification Outstanding Recorded Investment Troubled debt restructuring modification post modification recorded investment. Troubled Debt Restructuring Modification Post Modification Recorded Investment Post-modification Outstanding Recorded Investment Nonaccrual troubled debt restructured loans. Nonaccrual Troubled Debt Restructured Loans Nonaccruing TDR's Unrated Residential And Consumer [Member] Unrated Residential And Consumer [Member] Unrated Residential And Consumer [Member] Unrated Residential and Consumer Pass [Member] Pass [Member] Pass-Watch [Member]. Pass Watch [Member] Pass-Watch [Member] Special Mention [Member] Special Mention [Member] Substandard [Member] Substandard [Member] Final average pay plan, years. FINAL AVERAGE PAY PLAN, YEARS Final average pay plan, years Number of years that produce highest average salary under final average pay plan NUMBER OF YEARS THAT PRODUCE HIGHEST AVERAGE SALARY UNDER FINAL AVERAGE PAY PLAN Number of years that produce highest average salary under final average pay plan Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year Contribution to the plan Defined Benefit Plan, Interest Cost Interest Cost Defined Benefit Plan, Service Cost Service cost Defined Benefit Plan, Expected Return on Plan Assets Expected return on Plan assets Expected return on Plan assets Defined Benefit Plan, Amortization of Gains (Losses) Amortization of net loss Amortization of net loss Defined Benefit Plan, Net Periodic Benefit Cost Defined Benefit Plan, Net Periodic Benefit Cost, Total Net periodic benefit cost Net periodic benefit cost Weighted Average Number of Shares Outstanding, Basic Weighted average common shares outstanding Weighted Average Number of Shares Outstanding, Basic, Total Weighted average common shares outstanding Incremental Common Shares Attributable to Call Options and Warrants Dilutive effect of common stock equivalents Weighted Average Number Diluted Shares Outstanding Adjustment, Total Weighted Average Number of Shares Outstanding, Diluted Weighted average diluted shares outstanding Weighted Average Number of Shares Outstanding, Diluted, Total Weighted average common and common equivalent shares outstanding Stock Repurchase Program, Number of Shares Authorized to be Repurchased Stock repurchase program, number of shares authorized to be repurchased Treasury Stock, Shares, Acquired Common stock shares purchased on the open market since program's adoption Treasury Stock Acquired, Average Cost Per Share Average price per share of repurchased shares Contingent Obligations Under Standby Letters Of Credit Contingent Obligations Under Standby Letters Of Credit Contingent obligations under standby letters of credit Expiration Term Of Contingent Obligations, Months Expiration Term Of Contingent Obligations, Months Expiration term of contingent obligations, months Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Commitments, Fair Value Disclosure The fair value of commitments to extend credit and standby letters of credit Securities Assets [Member] Securities (Assets) [Member] Debt Securities [Member] Debt Securities [Member] Interest Rate Swap [Member] Interest Rate Swap Agreements [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] Assets, Fair Value Disclosure, Recurring Assets Assets, Fair Value Disclosure, Recurring, Total Liabilities, Fair Value Disclosure, Recurring Liabilities Liabilities Impaired loans at fair value. Impaired Loans At Fair Value Impaired loans Assets, Fair Value Disclosure, Nonrecurring Fair value assets, Nonrecurring Total Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Valuation Methodology And Unobservable Inputs [Axis] Fair Value, Valuation Methodology And Unobservable Inputs [Axis] Fair Value, Valuation Methodology And Unobservable Inputs [Domain] Fair Value Valuation Methodology And Unobservable Inputs [Domain] Fair Value, Valuation Methodology And Unobservable Inputs [Domain] Other Real Estate Owned [Member] Other Real Estate Owned [Member] OREO [Member] Impaired Loans [Member] Impaired Loans [Member] Impaired Loans [Member] Range [Axis] Range [Member] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Valuation Methodology Range Of Inputs Percentage Valuation Methodology Range Of Inputs Percentage Range of Inputs Fair Value, by Balance Sheet Grouping [Table] 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 cash equivalents Available-for-sale Securities, Fair Value Disclosure Securities available for sale Available for Sale, Fair Value Available-for-sale Securities, Fair Value Held-to-maturity Securities, Fair Value Disclosure Securities held to maturity Loans Receivable, Fair Value Disclosure Loans, net of allowance for loan losses Interest rate contract-cash flow hedge, carrying amount. Interest rate swap agreements Interest rate contract-cash flow hedge Derivative Liability, Fair Value, Gross Asset Interest rate contract-cash flow hedge Interest Receivable Accrued interest receivable Accrued interest receivable, fair value disclosure. Accrued Interest Receivable, Fair Value Disclosure Accrued interest receivable Assets, Fair Value Disclosure Total assets Total assets Deposits, Fair Value Disclosure Deposits Short-term Debt, Fair Value Short-term debt Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure Securities sold under agreement to repurchase Long-term Debt, Fair Value Other long-term debt Subordinated Debt Obligations, Fair Value Disclosure Junior subordinated debentures issued to unconsolidated subsidiary trust Junior subordinated debentures issued to unconsolidated subsidiary trust Liability, interest rate swap agreements Liability Interest Rate Swap Agreements Interest rate contract-cash flow hedge Derivative Liability, Fair Value, Gross Liability Interest rate contract-cash flow hedge Derivative Liability, Fair Value, Gross Liability, Total Interest Payable Accrued interest payable Accrued interest payable, fair value disclosure. Accrued Interest Payable, Fair Value Disclosure Accrued interest payable Liabilities, Fair Value Disclosure Liabilities Total liabilities Total liabilities Notional Amount of Interest Rate Cash Flow Hedge Derivatives Interest rate swaps designated as cash flow hedges, notional amount Derivative Instruments, Loss Recognized in Other Comprehensive Income (Loss), Effective Portion Fair values of effective portion of hedges reflected in Other Comprehensive Income Number of Interest Rate Derivatives Held Number of interest rate derivative positions Notional Amount of Interest Rate Derivative Instruments Not Designated as Hedging Instruments Interest rate derivatives, combined notional amount Interest Rate Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net Fair value of interest rate derivatives Interest Rate Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net, Total Commercial Mortgage Backed Securities [Member] Agency CMBSs [Member]