Document and Entity Information [Abstract] Document And Entity Information [Abstract] Statement [Table] Statement [Line Items] FinancingReceivableRecordedInvestmentPastDueLineItems Nonaccrual Loans By Major Loan Type [Line Items] Document Type Document Period End Date Amendment Flag Amendment Description Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Document Fiscal Year Focus Document Fiscal Period Focus Entity Voluntary Filers Entity Current Reporting Status Entity Common Stock, Shares Outstanding Trading Symbol Consolidated Balance Sheets [Abstract] ASSETS ASSETS Cash and Due from Banks Cash and due from banks Cash and Due from Banks, Total Overnight Investments Interest bearing deposits in other banks Investment securities available for sale Available-for-sale Securities, Fair Value Available-for-sale Securities, Fair Value Investment securities held to maturity Held-to-maturity Securities, Total Marketable Securities Total portfolio investments Investment in Federal Home Loan Bank stock Investment in Federal Home Loan Bank stock, at cost Investment in Federal Home Loan Bank stock Loans held for sale Loans and Leases Receivable, Net of Deferred Income Loans Loans and Leases Receivable, Net of Deferred Income, Total Loans and Leases Receivable, Allowance 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 Net loans Net loans Accounts Receivable, Net Purchased receivables, net Accounts Receivable, Net, Total Decrease in accrued interest receivable Accrued interest receivable Real Estate Acquired Through Foreclosure Other real estate owned Premises and equipment, net Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Total Reflects the carrying amount of goodwill as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Additionally, reflects the carrying amounts of all other intangible assets as of the balance sheet date, net of accumulated amortization and impairment charges Goodwill and intangible assets Goodwill and intangible assets Other Assets Other assets Other Assets, Total Assets element Total assets Assets LIABILITIES Abstract LIABILITIES Deposit: Demand Demand Deposit Accounts, Total Interest-bearing Deposit Liabilities Interest-bearing demand Interest-bearing Deposit Liabilities, Total Savings Amount of interest bearing deposits with no stated maturity, which may include savings accounts and money-market deposit accounts (MMDAs). Transactions in these are be somewhat more limited than demand accounts and they share some of the characteristics of a money market account. Alaska CDs Money market Certificates of Deposit, less than $100,000 Certificates of deposit less than $100,000 Certificates of Deposit, more than $100,000 Certificates of deposit greater than $100,000 Time Deposits, $100,000 or More, Total Deposits Total deposits Total deposits Securities sold under repurchase agreements Other borrowings Borrowings Junior Subordinated Notes Junior subordinated debentures Junior Subordinated Notes, Total Other Liabilities Other liabilities Other Liabilities, Total Liabilities Total liabilities SHAREHOLDERS' EQUITY Shareholders' Equity Preferred Stock, $1 par value, 2,500,000 shares authorized, none issued or outstanding Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred stock, $1 par value, 2,500,000 shares authorized, none issued or outstanding Preferred Stock, Value, Issued, Total Common Stock, Value, Issued Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common stock, $1 par value, 10,000,000 shares authorized, 6,470,518, 6,466,763 and 6,433,438 shares issued and outstanding at June 30, 2012, December 31, 2011, and June 30, 2011 Common Stock, Value, Issued, Total Common stock, $1 par value, 10,000,000 shares authorized, 6,446,763 and 6,427,237 shares issued and outstanding at December 31, 2011 and 2010, respectively Additional paid-in capital 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 (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 Stockholders' Equity Attributable to Parent Ending balance, value Beginning balance, value Balance as of September 30, 2010 Total Northrim BanCorp shareholders' equity Noncontrolling interest Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance Stockholders' Equity Attributable to Noncontrolling Interest, Beginning Balance Stockholders' Equity Attributable to Noncontrolling Interest, Total Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Ending balance, value Beginning balance, value Equity Total shareholders' equity Total liabilities and shareholders' equity Total liabilities and shareholders' equity Preferred Stock, Par Value Preferred stock, par value Preferred Stock, Shares Authorized Preferred stock, shares authorized Preferred Stock, Issued Preferred stock, issued Preferred Stock, Shares Issued, Total Preferred Stock, Outstanding Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Preferred stock, outstanding Common Stock, Par Value Common stock, par value Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares Issued Ending balance, shares Beginning balance, shares 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 Consolidated Statements Of Income [Abstract] Legal Entity [Axis] Entity [Domain] Entity [Domain] RML [Member] Rml [Member] RML [Member] Interest Income Interest and fees on loans Interest and Fee Income, Loans and Leases, Total Securities available for sale Interest on investment securities-available for sale Securities held to maturity Interest on investment securities-held to maturity Interest on overnight investments Interest on deposits in other banks Interest Income, Deposits with Financial Institutions, Total Interest and Dividend Income, Operating Total Interest Income Interest Expense Interest expense on deposits, borrowings and junior subordinated debentures Interest Expense, Total Interest Income (Expense), Net Net Interest Income Provision for loan losses Provision for loan losses Provision for loan losses Net Interest Income After Provision for Loan Losses Net Interest Income After Provision for Loan Losses Other Operating Income Interest Income, Purchased Receivables Purchased receivable income Income from the sale and service of employee benefit plans through affiliate. Employee benefit plan income Fees and Commissions, Depositor Accounts Service charges on deposit accounts Reflects revenue received from electronic banking services such as point-of-sale and ATM transaction fees. Electronic banking income Equity in earning from investment in affiliate. Earnings from affiliates are recorded using the equity method of accounting. Equity in earnings (loss) from entity Equity in earnings (loss) from entity Equity in earnings from RML Rental Income, Nonoperating Rental income Gain on sale of securities Gain (Loss) on Sale of Securities, Net, Total Other income Noninterest Income Total Other Operating Income Other Operating Expenses Other Operating Expense Salaries and other personnel expense Labor and Related Expense, Total Occupancy, Net Occupancy Marketing expense Equipment expense Insurance expense Professional and outside services Software Expense Software expense Amortization of low income housing tax investments. Amortization Of Low Income Housing Tax Investments Amortization of low income housing tax investments Reflects expenses directly associated with providing internet banking products and services. Internet Banking Expense Internet banking expense The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, write-downs of other real estate owned, and operating expenses and disposal expenses related to other real estate owned after acquisition or physical possession. Other real estate owned expense net, including impairment OREO (income) expense, net of rental income and gains on sale Intangible asset amortization Intangible asset amortization expense Amortization of Intangible Assets, Total Other Noninterest Expense Other operating expense Total Other Operating Expense Noninterest Expense Total Other Operating Expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Cumulative Effects of Changes in Accounting Principles, Noncontrolling Interest Income Before Provision for Income Taxes Income Before Provision for Income Taxes Income Tax Expense (Benefit) Provision for income taxes Income Tax Expense (Benefit), Total Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net Income Net Income Net income Net income attributable to the noncontrolling interest Less: Net income attributable to the noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest, Total Net income attributable to Northrim BanCorp Net Income Attributable to Northrim BanCorp Net Income Attributable to Northrim BanCorp Earnings Per Share, Basic Earnings Per Share, Basic, Total Earnings Per Share, Diluted Earnings Per Share, Diluted, Total Weighted Average Shares Outstanding, Basic Weighted Average Number of Shares Outstanding, Basic, Total Weighted Average Shares Outstanding, Diluted Weighted Average Number of Shares Outstanding, Diluted, Total Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income, net of tax: Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax, Total Unrealized gains arising during the period Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax Reclassification adjustment for net gain realized in earnings Change in unrealized holding gain (loss) on available for sale investment securities, net of related income tax effect Change in unrealized holding gain on available for sale securities, net of tax Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss), Net of Tax, Total Net change in unrealized gains Other Comprehensive Income (Loss), Net of Tax Other comprehensive income Other comprehensive income Comprehensive Income, Net of Tax, Including Portion Attributable to Noncontrolling Interest Net income attributable to the noncontrolling interest Comprehensive income Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Net income attributable to the noncontrolling interest Less: comprehensive income attributable to the noncontrolling interest Less: comprehensive income attributable to the noncontrolling interest Net income attributable to the noncontrolling interest Comprehensive income attributable to Northrim BanCorp Total Comprehensive Income Comprehensive income attributable to Northrim BanCorp Comprehensive income attributable to Northrim BanCorp Consolidated Statements Of Changes In Shareholders' Equity And Comprehensive Income [Abstract] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Common Stock [Member] Additional Paid In Capital [Member] Additional Paid-In Capital [Member] Retained Earnings [Member] Retained Earnings [Member] Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Income [Member] Noncontrolling Interest [Member] Noncontrolling Interest [Member] Dividends, Cash Cash dividend declared Cash dividend declared Dividends, Cash, Total Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Total Stock based compensation expense Exercise of stock options, shares Exercise of stock options, shares Exercise of stock options, value Exercise of stock options Excess tax benefits from share-based payment arrangements element Excess tax benefits from share-based payment arrangements Distributions to noncontrolling interest Distributions to noncontrolling interest Stockholders equity net income attributable to the noncontrolling interest Stockholders equity net income attributable to the noncontrolling interest Net income attributable to the noncontrolling interest Consolidated Statement Of Cash Flows [Abstract] Operating Activities: Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities: Security (gains), net Gain on sale of securities, net Gain (Loss) on Sale of Investments, Total Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization of premises and equipment Depreciation, Depletion and Amortization, Nonproduction, Total Capitalized Computer Software, Amortization Amortization of software Amortization of software Other Depreciation and Amortization Amortization of investment security premium, net of discount accretion Deferred tax liability (benefit) Deferred tax(benefit) liability Stock-based compensation Stock option expense Stock-based compensation expense Share-based Compensation, Total Excess tax benefits from share-based payment arrangements Excess tax benefits from share-based payment arrangements Deferral of loan fees and costs, net Deferral of loan fees and costs, net Purchases of loans held for sale Purchases of loans held for sale Payments to Purchase Loans Held-for-sale, Total Proceeds from the sale of loans held for sale Proceeds from Sale of Loans Held-for-sale, Total The net gain (loss) resulting from sales and other disposals of other real estate owned. Gain (Loss) on the Sale of Other Real Estate Owned Gain on sale of other real estate owned Gain on sale of other real estate owned Impairment on other real estate owned Impairment on other real estate owned Impairment on other real estate owned Earnings In Excess Of Proceeds From Entity Earnings In Excess Of Proceeds From Entity Equity in undistributed earnings from mortgage affiliate Equity in undistributed earnings from mortgage affiliate Net changes in assets and liabilities: Increase Decrease In Accrued Interest Receivable Net (Increase) decrease in accrued interest receivable (Increase ) decrease in accrued interest receivable Increase (Decrease) in Other Operating Assets Decrease in other assets Decrease in other assets Increase (Decrease) in Other Operating Assets, Total Increase (Decrease) in Other Operating Liabilities (Decrease) in other liabilities Increase (Decrease) in Other Operating Liabilities, Total Net Cash Provided by (Used in) Operating Activities Net Cash Provided by Operating Activities Investing Activities: Purchases of investment securities-available-for-sale Purchases of investment securities-available for sale Payments to Acquire Available-for-sale Securities, Total Proceeds from Sale of Available-for-sale Securities Proceeds from sales of securities-available for sale Proceeds from Sale of Available-for-sale Securities, Total Proceeds from calls/maturities of securities-held to maturity Purchases of domestic certificates of deposit Purchases of domestic certificates of deposit Payments to Acquire Other Receivables Investment in purchased receivables, net of repayments Investment in (repayment from) purchased receivables Payments for (Proceeds from) Loans and Leases (Increase) decrease in loans, net Payments for (Proceeds from) Loans and Leases, Total Loan advances, net of paydowns Gain on sale of other real estate owned Proceeds from sale of other real estate owned The cash outflow for capital expenditures associated with other real estate owned. Investment in other real estate owned The cash outflow associated with loans made to Elliott Cove, net of cash inflow of repayments on the loan. Loan to entity, net of repayments Loan to Elliott Cove, net of repayments Purchases of premises and equipment Purchases of premises and equipment Payments to Acquire Property, Plant, and Equipment, Total Net Cash Provided by (Used in) Investing Activities Net Cash (Used) Provided by Investing Activities Financing Activities: (Decrease) increase in deposits (Decrease) increase in deposits Increase (Decrease) in Deposits, Total Increase in securities sold under repurchase agreements (Decrease) increase in securities sold under repurchase agreements Increase (Decrease) in Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Net, Total (Decrease) increase in borrowings Paydowns on borrowings Proceeds from (Repayments of) Debt, Total Paydowns on borrowings Distributions to minority interest Distributions to noncontrolling interest Distributions to noncontrolling interest Excess tax benefit payment arrangements Excess tax benefits from share-based payment arrangements Payments of Dividends Cash dividends paid Cash dividends paid Payments of Dividends, Total Net Cash Provided by (Used in) Financing Activities Net Cash Provided by Financing Activities Net Increase in Cash and Cash Equivalents Net Increase in Cash and Cash Equivalents Cash and Cash Equivalents, Period Increase (Decrease), Total Cash and Cash Equivalents, at Carrying Value Cash and Cash Equivalents at End of Period Cash and Cash Equivalents at Beginning of Period Cash and Cash Equivalents, at Carrying Value, Total Supplemental Information: Income taxes paid Income Taxes Paid, Net, Total Interest paid Interest Paid, Net, Total Loans transferred from loans to other real estate owned Loans transferred from loans to other real estate owned Transfer of loans to other real estate owned Loans made to facilitate sales of other real estate owned Loans made to facilitate sales of other real estate owned Dividends Payable, Amount Cash dividends declared but not paid Basis Of Presentation [Abstract] Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Basis Of Presentation Significant Accounting Policies And Recent Accounting Pronouncements [Abstract] Significant Accounting Policies [Text Block] Significant Accounting Policies Cash and Cash Equivalents Disclosure [Text Block] Cash and Cash Equivalents Investment Securities [Abstract] Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Investment Securities Loans Held For Sale [Abstract] Financing Receivables [Text Block] Loans Held For Sale Loans Loans [Abstract] Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Loans Allowance For Loan Losses [Abstract] Allowance For Loan Losses Nonperforming Assets And Loans Measure For Impairment [Text Block] Allowance For Loan Losses Goodwill And Other Intangibles [Abstract] Goodwill and Other Intangibles element Goodwill And Other Intangibles Deposit Activities: Deposit Activities Stock Incentive Plan [Abstract] Stock Incentive Plan Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock Incentive Plan Stock-Based Compensation Fair Value Of Assets And Liabilities [Abstract] Fair Value Disclosures Fair Value Of Assets And Liabilities Tabular disclosure of the reconciliation of available-for-sale and held to maturity securities from cost basis to fair value. Available For Sale And Held To Maturity Securities [Table Text Block] Summary Of Available-For-Sale And Held-To-Maturity Securities Investments Classified by Contractual Maturity Date [Table Text Block] Schedule Of Amortized Cost And Fair Value By Contractual Maturity Schedule of Realized Gain (Loss) [Table Text Block] Schedule Of Available-For-Sale Securities Proceeds, Gains, And Losses Summary Of Interest Income On Available For Sale Investment Securities [Table Text Block] Summary Of Interest Income On Available For Sale Investment Securities [Table Text Block] Summary Of Interest Income On Available-For-Sale Investment Securities Composition Of The Loan Portfolio By Segment Excluding Loans Held For Resale [Table Text Block] Composition Of The Loan Portfolio By Segment Excluding Loans Held For Resale [Table Text Block] Composition Of The Loan Portfolio By Segment Excluding Loans Held For Resale Financing Receivable Credit Quality Indicators [Table Text Block] Loan Portfolio Segmented By Risk Class Nonaccrual Loans By Major Loan Type [Table Text Block] Nonaccrual Loans By Major Loan Type [Table Text Block] Nonaccrual Loans By Major Loan Type Past Due Financing Receivables [Table Text Block] Past Due Loans And Nonaccrual Loans Impaired Financing Receivables [Table Text Block] Impaired Loans Troubled Debt Restructurings on Financing Receivables [Table Text Block] Troubled Debt Restructured Loans Newly Restructured Loans Troubled Debt Restructurings On Pre And Post Modification Outstanding Recorded Investment [Table Text Block] Troubled Debt Restructurings On Pre And Post Modification Outstanding Recorded Investment [Table Text Block] Newly Restructured Loans By Concession Troubled debt restructurings that subsequently defaulted [Table Text Block] Troubled debt restructurings that subsequently defaulted [Table Text Block] Troubled debt restructurings that subsequently defaulted Allowance for Credit Losses on Financing Receivables [Table Text Block] Allowance For Loan Losses Recorded Investment Segregated By Amounts Individually Or Collectively In Allowance For Loan Losses [Table Text Block] Recorded Investment Segregated By Amounts Individually Or Collectively In Allowance For Loan Losses [Table Text Block] Recorded Investment Segregated By Amounts Individually Or Collectively In Allowance For Loan Losses Allowance For Loan Losses Credit Quality Indicators [Table Text Block] Allowance For Loan Losses Credit Quality Indicators [Table Text Block] Balance Of The Allowance Segregated By Segment And Class Fair Value, by Balance Sheet Grouping [Table Text Block] Schedule Of Estimated Fair Values Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block] Schedule Of Asset Impairment Or Valuation Adjustment Recognized At Fair Value On A Nonrecurring Basis Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Line Items] Number of investment securities with unrealized losses for less than 12 months. Number Of Investment Securities With Unrealized Losses Securities with unrealized losses Pledged Assets Separately Reported, Securities Pledged as Collateral, at Fair Value Pledged Assets Separately Reported, Securities Pledged as Collateral, at Fair Value, Total Securities pledged Percent Of Investment Portfolio Securities Pledged Percent Of Investment Portfolio Securities Pledged Percent of investment portfolio securities pledged Concentration Risk, Percentage Concentration risk reporting threshold Available-for-sale Securities, Amortized Cost Basis Available-for-sale Securities, Amortized Cost Total securities available for sale, Amortized Cost Total securities available for sale, Amortized Cost Available-for-sale Securities, Gross Unrealized Gains Available-for-sale Securities, Gross Unrealized Gains Available-for-sale Securities, Gross Unrealized Gains, Total Available-for-sale Securities, Gross Unrealized Losses Available-for-sale Securities, Gross Unrealized Losses Available-for-sale Securities, Gross Unrealized Losses, Total Held-to-maturity Securities, Debt Maturities, Net Carrying Amount Held-to-maturity Securities, Amortized Cost Held-to-maturity Securities, Debt Maturities, Net Carrying Amount, Total Held To Maturity Debt Securities Gross Unrecognized Gains Held To Maturity Debt Securities Gross Unrecognized Gains Held-to-maturity, Gross Unrecognized Gains Held-to-maturity Securities, Fair Value Held-to-maturity Securities, Fair Value Available-for-sale Securities, Debt Maturities, within One Year, Amortized Cost Basis Within 1 year, Amortized Cost Available-for-sale Securities, Debt Maturities, after One Through Five Years, Amortized Cost Basis 1-5 years, Amortized Cost Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Amortized Cost Basis 5-10 years, Amortized Cost Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Over 10 years, Amortized Cost Available-for-sale Securities, Debt Maturities, within One Year, Fair Value Within 1 year, Fair Value Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value 1-5 years, Fair Value Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value 5-10 years, Fair Value Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Over 10 years, Fair Value Available-for-sale Securities, Debt Securities Total securities available for sale, Fair Value Total securities available for sale, Fair Value Available For Sale Securities Within One Year Weighted Average Yield Available For Sale Securities Within One Year Weighted Average Yield Within 1 year, Weighted Average Yield Available For Sale Securities After One Through Five Years Weighted Average Yield Available For Sale Securities After One Through Five Years Weighted Average Yield 1-5 years, Weighted Average Yield Available For Sale Securities After Five Through Ten Years Weighted Average Yield Available For Sale Securities After Five Through Ten Years Weighted Average Yield 5-10 years, Weighted Average Yield Available For Sale Securities After Ten Years Weighted Average Yield Available For Sale Securities After Ten Years Weighted Average Yield Over 10 years, Weighted Average Yield Weighted Average Yield Weighted Average Yield Weighted Average Yield, Total Debt Securities Maturities Within One Year Amortized Cost Debt Securities Maturities Within One Year Amortized Cost Debt securities maturities within one year amortized cost Debt Securities Maturities After One Through Five Years Amortized Cost Debt Securities Maturities After One Through Five Years Amortized Cost Debt securities maturities after one through five years amortized cost Debt Securities Maturities After Five Through Ten Years Amortized Cost Debt Securities Maturities After Five Through Ten Years Amortized Cost Debt securities maturities after five through ten years amortized cost Debt Securities Maturities After Ten Years Amortized Cost Debt Securities Maturities After Ten Years Amortized Cost Debt securities maturities after ten years amortized cost Debt securities maturities within one year fair value Debt securities maturities within one year fair value Debt Securities Maturities After One Through Five Years Fair Value Debt Securities Maturities After One Through Five Years Fair Value Debt securities maturities after one through five years fair value Debt Securities Maturities After Five Through Ten Years Fair Value Debt Securities Maturities After Five Through Ten Years Fair Value Debt securities maturities after five through ten years fair value Debt Securities Maturities After Ten Years Fair Value Debt Securities Maturities After Ten Years Fair Value Debt securities maturities after ten years fair value Debt securities amortized cost Debt securities amortized cost Debt securities amortized cost Debt securities fair value Debt securities fair value Debt securities fair value Available-for-sale Securities, Gross Realized Gains Available-for-sale Securities, Gross Gains Available For Sale Securities Proceeds Available For Sale Securities Proceeds Available-for-sale Securities, Proceeds Interest Income, Securities, Taxable Total taxable interest income Interest Income, Securities, Tax Exempt Total tax-exempt interest income Interest and Dividend Income, Securities Total Total Interest Income Payments to Purchase Mortgage Loans Held-for-sale Mortgage loans purchased Proceeds from Sale of Mortgage Loans Held-for-sale Mortgage loans sold Portfolio Segment [Axis] Financing Receivable Allowance [Domain] Financing Receivable Allowance [Domain] Six troubled debt restructurings [Member] Six Troubled Debt Restructurings [Member] Six troubled debt restructurings [Member] Two charge offs [Member] Two Charge Offs [Member] Two charge offs [Member] Percent Of Loan Portfolio Schedule To Mature Over Next Twelve Months Percent Of Loan Portfolio Schedule To Mature Over Next Twelve Months Percent Of Loan Portfolio Scheduled To Mature After One Year Before Four Years Percent Of Loan Portfolio Scheduled To Mature After One Year Before Four Years Financing Receivable, Recorded Investment, Nonaccrual Status Total Nonaccrual loans Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing Past due loans greater than 90 days and still accruing Greater Than 90 Days Still Accruing, Subtotal Nonperforming loans minimum threshold for inidividual impairment evaluation. Nonperforming loans minimum threshold for inidividual impairment evaluation Impaired Financing Receivable, Recorded Investment Recorded investment in loans considered to be impaired Impaired Financing Receivable, Recorded Investment, Total Recorded Investment Financing Receivable, Modifications, Recorded Investment Total Modifications Loans classified as troubled debt restructurings Financing Receivable, Allowance for Credit Losses, Charge-offs Charge-Offs Charge offs on troubled debt restructurings Charge-Offs Troubled Debt Restructurings Total Recorded Investment Troubled Debt Restructurings Total Recorded Investment Troubled debt restructurings, Total recorded investment Troubled Debt Restructurings Total Recorded Investment Impairment Amount Troubled Debt Restructurings Total Recorded Investment Impairment Amount Troubled debt restructurings, Total recorded investment impairment amount Commercial Portfolio Segment [Member] Commercial [Member] Real Estate Construction Portfolio Segment [Member] Real Estate Construction Portfolio Segment [Member] Real Estate Construction [Member] Real Estate Term Portfolio Segment [Member] Real Estate Term Portfolio Segment [Member] Real Estate Term [Member] Home Equity Lines And Other Consumer Portfolio Segment [Member] Home Equity Lines And Other Consumer Portfolio Segment [Member] Home Equity Lines And Other Consumer [Member] Notes Receivable Net Subtotal, Dollar Amount Net loans Subtotal Percent Of Loan Portfolio By Segment, Total Percent Of Loan Portfolio By Segment Total Subtotal, Percent of Total Unearned Origination Fee Net Of Origination Costs Unearned Origination Fee Net Of Origination Costs Less: Unearned origination fee, net of origination costs, Dollar Amount Less: Unearned origination fee, net of origination costs Unearned Origination Fee Net Of Origination Costs Percentage Unearned Origination Fee Net Of Origination Costs Percentage Less: Unearned origination fee, net of origination costs, Percent of Total Financing Receivable By Segment Total Loans Financing Receivable By Segment Total Loans Total Loans, Dollar Amount Total Loans, Dollar Amount Total Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Loan Portfolio Risk Class Segment [Axis] Loan Portfolio Risk Class Segment [Axis] Loan Portfolio Risk Class Segment [Domain] Loan Portfolio Risk Class Segment [Domain] Loan Portfolio Risk Class Segment [Domain] Risk Code One Excellent [Member] Risk Code One Excellent [Member] Risk Code 1 - Excellent [Member] Risk Code Two Good [Member] Risk Code Two Good [Member] Risk Code 2 - Good [Member] Risk Code Three Satisfactory [Member] Risk Code Three Satisfactory [Member] Risk Code 3 - Satisfactory [Member] Risk Code Four Watch [Member] Risk Code Four Watch [Member] Risk Code 4 - Watch [Member] Risk Code Five Special Mention [Member] Risk Code Five Special Mention [Member] Risk Code 5 - Special Mention [Member] Risk Code Six Substandard [Member] Risk Code Six Substandard [Member] Risk Code 6 - Substandard [Member] Risk Code Seven Doubtful [Member] Risk Code Seven Doubtful [Member] Risk Code 7 - Doubtful [Member] Financing Receivable, Recorded Investment [Line Items] Schedule of Financing Receivables Past Due [Table] Nonaccrual Loans By Major Loan Type [Table] Financing Receivable, Recorded Investment, Past Due [Line Items] Nonaccrual Loans By Major Loan Type [Line Items] Financing Receivable, Recorded Investment, 30 to 59 Days Past Due 30-59 Days Past Due Still Accruing, Subtotal Financing Receivable, Recorded Investment, 60 to 89 Days Past Due 60-89 Days Past Due Still Accruing, Subtotal Financing Receivable, Recorded Investment, Past Due Total Past Due and Nonaccrual, Subtotal Financing Receivable, Recorded Investment, Past Due, Total Financing Receivable, Recorded Investment, Current Total Current, Subtotal Schedule of Impaired Financing Receivable [Table] Financing Receivable, Impaired [Line Items] Impaired Financing Receivable, with No Related Allowance, Recorded Investment Impaired Financing Receivable, with Related Allowance, Recorded Investment Impaired Financing Receivable, Unpaid Principal Balance Unpaid Principal Balance Impaired Financing Receivable, Unpaid Principal Balance, Total Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance Impaired Financing Receivable, Related Allowance Related Allowance Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment Impaired Financing Receivable, with Related Allowance, Average Recorded Investment 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 Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Loans, by Accrual Status [Axis] Loans, by Accrual Status [Axis] Loans, by Accrual Status [Domain] Loans By Accrual Status [Domain] Loans, by Accrual Status [Domain] Accrual [Member] Accrual [Member] Accrual [Member] Nonaccrual [Member] Nonaccrual [Member] Nonaccrual [Member] Financing Receivable, Modifications [Line Items] Existing troubled debt restructurings Existing troubled debt restructurings Troubled debt restructuring recorded investment Troubled debt restructuring recorded investment Financing Receivable, Troubled Debt Restructuring [Axis] Financing Receivable Troubled Debt Restructuring [Domain] Financing Receivable, Troubled Debt Restructuring [Domain] Financing Receivable Modifications Pre Modification Recorded Investment Number Of Contracts Financing Receivable Modifications Pre Modification Recorded Investment Number Of Contracts Pre-Modification Outstanding Recorded Investment, Number of Contracts Financing Receivable Modifications Pre Modification Recorded Investment Term Modification Financing Receivable Modifications Pre Modification Recorded Investment Term Modification Pre-Modification Outstanding Recorded Investment, Term Modification Financing Receivable Modifications Pre Modification Recorded Investment Payment Modification Financing Receivable Modifications Pre Modification Recorded Investment Payment Modification Pre-Modification Outstanding Recorded Investment, Payment Modification Financing Receivable Modifications Pre Modification Recorded Investment Combination Modification Financing Receivable Modifications Pre Modification Recorded Investment Combination Modification Pre-Modification Outstanding Recorded Investment, Combination Modification Financing Receivable, Modifications, Pre-Modification Recorded Investment Pre-Modification Outstanding Recorded Investment, Total Modification Financing Receivable Modifications Post Modification Recorded Investment Number Of Contracts Financing Receivable Modifications Post Modification Recorded Investment Number Of Contracts Post-Modification Outstanding Recorded Investment, Number of Contracts Financing Receivable Modifications Post Modification Recorded Investment Term Modification Financing Receivable Modifications Post Modification Recorded Investment Term Modification Post-Modification Outstanding Recorded Investment, Term Modification Financing Receivable Modifications Post Modification Recorded Investment Payment Modification Financing Receivable Modifications Post Modification Recorded Investment Payment Modification Post-Modification Outstanding Recorded Investment, Payment Modification Financing Receivable Modifications Post Modification Recorded Investment Combination Modification Financing Receivable Modifications Post Modification Recorded Investment Combination Modification Post-Modification Outstanding Recorded Investment, Combination Modification Financing Receivable, Modifications, Post-Modification Recorded Investment Post-Modification Outstanding Recorded Investment, Total Modification Financing Receivable, Modifications, Subsequent Default, Number of Contracts Number of contracts that subsequently defaulted Financing Receivable, Modifications, Subsequent Default, Recorded Investment Troubled debt restructurings that subsequently defaulted recorded investment Financing Receivable, Allowance for Credit Losses [Line Items] Allowance For Loan Losses [Line Items] Loans and Leases Receivable, Ratio of Nonperforming Loans to All Loans Company's ratio of nonperforming loans compared to portfolio loans Loans And Leases Receivable Ratio Of Allowance To Portfolio Loans Loans And Leases Receivable Ratio Of Allowance To Portfolio Loans Company's ratio of Allowance compared to portfolio loans Schedule of Financing Receivable, Allowance for Credit Losses [Table] Financing Receivable, Allowance for Credit Losses Balance, end of period Balance, beginning of period Total Financing Receivable, Allowance for Credit Losses, Recoveries Recoveries Recoveries Financing Receivable, Allowance for Credit Losses, Provisions Provisions Provisions Provision for Loan, Lease, and Other Losses, Total Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Balance, end of period: Individually evaluated for impairment Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Balance, end of period: Collectively evaluated for impairment Financing Receivable, Individually Evaluated for Impairment Nonperforming loans individually evaluated for impairment Balance, end of period: Individually evaluated for impairment Financing Receivable, Collectively Evaluated for Impairment Balance, end of period: Collectively evaluated for impairment Loans Evaluated For Impairment [Axis] Loans Evaluated For Impairment [Axis] Loans Evaluated For Impairment [Domain] Loans Evaluated For Impairment [Domain] Loans Evaluated For Impairment [Domain] Loans Individually Evaluated For Impairment [Member] Loans Individually Evaluated For Impairment [Member] Loans Individually Evaluated For Impairment [Member] Loans Collectively Evaluated For Impairment [Member] Loans Collectively Evaluated For Impairment [Member] Loans Collectively Evaluated For Impairment [Member] Unallocated Risk Class Segment [Member] Unallocated Risk Class Segment [Member] Unallocated [Member] Interest-bearing Domestic Deposit, Certificates of Deposits Certificates of deposit Time Deposit Maturities, Year One Certificates of deposits, maturing over next 12 months Percentage of Interest-bearing Domestic Deposits to Deposits, Time Deposits Percentage of certificates of deposit, maturing over next 12 months Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Shares of authorized stock for stock incentive plan Share based compensation options contractual term Share based compensation options contractual term Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Stock incentive plan vesting period, years Stock option expense Stock option expense Stock option expense Proceeds From Stock Options Exercised Exercise of stock options Proceeds from exercise of stock options Withheld Shares For Company Expenses Withheld Shares For Company Expenses Shares withheld for stock option exercises and related income taxes Fair Value, by Balance Sheet Grouping [Table] 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, Balance Sheet Grouping, Financial Statement Captions [Line Items] Cash and Cash Equivalents, Fair Value Disclosure Cash, due from banks and deposits in other banks Investments, Fair Value Disclosure Investment securities Accrued Interest Receivable Fair Value Disclosure Accrued Interest Receivable Fair Value Disclosure Accrued interest receivable Loans Held-for-sale, Fair Value Disclosure Loans held for sale, net Purchased Receivables Fair Value Disclosure Purchased Receivables Fair Value Disclosure Purchased receivables Deposits, Fair Value Disclosure Deposits Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure Securities sold under repurchase agreements Obligations, Fair Value Disclosure Borrowings Subordinated Debt Obligations, Fair Value Disclosure Junior subordinated debentures Accrued Liabilities, Fair Value Disclosure Accrued interest payable Commitments, Fair Value Disclosure Commitments to extend credit Standby Letters Of Credit Fair Value Disclosure Standby Letters Of Credit Fair Value Disclosure Standby letters of credit Fair Value Measurements, Recurring and Nonrecurring [Table] Major Types of Debt and Equity Securities [Axis] Major Types Of Debt And Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Debt Securities [Member] Debt Securities [Member] U S Treasury And Government [Member] U.S Treasury And Government Sponsored Entities [Member] U S Government Agencies Debt Securities [Member] U.S Agency Mortgage-Backed Securities [Member] U S States And Political Subdivisions [Member] Municipal Securities [Member] Corporate Debt Securities [Member] Corporate Bonds [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Available-for-sale Securities, Fair Value Disclosure Available for sale securities Fair Value Measurements By Asset Type Nonrecurring [Axis] Fair Value Measurements By Asset Type Nonrecurring [Axis] Fair Value Measurements By Asset Type Nonrecurring [Domain] Fair Value Measurements By Asset Type Nonrecurring [Domain] Fair Value Measurements By Asset Type Nonrecurring [Domain] Loans Measured For Impairment [Member] Loans Measured For Impairment [Member] Loans Measured For Impairment [Member] Other Real Estate Owned [Member] Other Real Estate Owned [Member] Other Real Estate Owned [Member] Assets, Fair Value Disclosure, Nonrecurring Nonrecurring Assets Assets, Fair Value Disclosure, Nonrecurring, Total Municipal Securities [Member] Municipal Securities [Member] Municipal Securities [Member] Preferred Stock [Member] Preferred Stock [Member] U S Government Sponsored Enterprises Debt Securities [Member] U.S. Agency mortgage-backed securities [Member] Other Investment Securities [Member] Other Investment Securities [Member] Other [Member] Risk Code 8 -Loss [Member] Risk Code8 Loss [Member] Risk Code 8 - Loss [Member] Real Estate Construction [Member] Real Estate Construction [Member] Real Estate Construction [Member] Unallocated Financing Receivables [Member] Unallocated [Member] Award Type [Axis] Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Award Type [Domain] Restricted Stock Units R S U [Member] Restricted Stock Units [Member] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value Disclosure Item Amounts [Domain] Fair Value, Disclosure Item Amounts [Domain] Portion At Fair Value Fair Value Disclosure [Member] Fair Value [Member] Carrying Reported Amount Fair Value Disclosure [Member] Carrying Amount [Member] Change During Period Fair Value Disclosure [Member] Total (gains) losses