Accounts Notes And Loans Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts Notes Loans And Financing Receivable By Receivable Type [Axis] Receivable Type [Axis] Accretion Amortization Of Discounts And Premiums Investments Net amortization of discounts and premiums for investment securities - AFS Accrual Loans [Member] Accrual Loans [Member] Accrual Loans Accumulated Other Comprehensive Income Loss Net Of Tax Accumulated other comprehensive income Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive (Loss)/Income Acquisition Announcement [Policy Text Block] Acquisition Announcement Policy [Text Block] Recent Developments Additional Paid In Capital Common Stock Paid in capital Additional Paid In Capital [Member] Paid in Capital Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Stock option compensation Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net income to net cash (used in)/provided by operating activities: Aging of Financing Receivables [Table Text Block] Aging Of Financing Receivables Table [Text Block] Aging of Past Due Loans on an Individual loan Basis at net Carrying Amount All Other Segments [Member] All Other Allowance For Credit Losses On Financing Receivables Table [Text Block] Summary of Allowance for Loan and Lease Losses Allowance For Credit Losses [Text Block] Allowance For Loan And Lease Losses Allowance for Loan Losses Look Back Period Allowance For Loan Losses Look Back Period Allowance look back period Amendment Flag Amendment Flag Amortization Of Intangible Assets Other intangible expense Amortization Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Anti-dilutive stock equivalents excluded from computation Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities Name [Domain] Antidilutive Securities, Name [Domain] Asset Backed Securities [Member] Asset-backed Securities Assets Total assets TOTAL ASSETS Assets [Abstract] ASSETS Assets: Assets Fair Value Disclosure Total assets at fair value Total assets at fair value Assigned Lease Obligation Assigned Lease Obligation Assigned lease obligation Available For Sale Securities Available for sale securities Fair Value Investment securities available for sale Available For Sale Securities Amortized Cost Amortized Cost Availableforsale Securities Continuous Unrealized Loss Position 12 Months Or Longer Aggregate Losses 2 12 Months or more, Unrealized Loss Availableforsale Securities Continuous Unrealized Loss Position Aggregate Losses 2 Unrealized Loss Unrealized Loss Available For Sale Securities Continuous Unrealized Loss Position Fair Value Fair Value Availableforsale Securities Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses 2 Less than 12 Months, Unrealized Loss Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value Less than 12 Months, Fair Value Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value 12 Months or more, Fair Value Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost After five years through ten years Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value After five years through ten years Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost After one year through five years Available For Sale Securities Debt Maturities After One Through Five Years Fair Value After one year through five years Available For Sale Securities Debt Maturities After Ten Years Amortized Cost After ten years Available For Sale Securities Debt Maturities After Ten Years Fair Value After ten years Available For Sale Securities Debt Maturities Amortized Cost Total securities Available For Sale Securities Debt Maturities Amortized Cost [Abstract] Available for sale securities: Available For Sale Securities Debt Maturities Fair Value [Abstract] Available for sale securities: Available For Sale Securities Debt Maturities Within One Year Amortized Cost In one year or less Available For Sale Securities Debt Maturities Within One Year Fair Value In one year or less Available For Sale Securities Fair Value Disclosure Total securities Availableforsale Securities Gross Unrealized Gain Gross Unrealized Gains Available For Sale Securities Gross Unrealized Losses 1 Gross Unrealized Losses Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Number of available for sale in unrealized loss position Available For Sale Securities [Text Block] Summary of Investment Securities Held by Company Average Impaired Loans by Segment and Class [Table Text Block] Average Impaired Loans By Segment And Class Table [Text Block] Summary Of Average Recorded Investment In Impaired Loans Basis Of Accounting Policy Policy [Text Block] Basis of Presentation (Accounting Policy) Building Improvements [Member] Building Improvements Building [Member] Building Business Combination Acquisition Related Costs Merger and acquisition expense Business Combination Integration Related Costs Increase in earnout liability for RIAs Business Combinations Policy Recapitalization through the Investment Transaction and Purchase Accounting Capital Lease Obligations Obligation under capital lease Capital Leases Future Minimum Payments Due Capital leases, total Capital Leases Future Minimum Payments Due Current Capital leases, less than one year Capital Leases Future Minimum Payments Due In Four And Five Years Capital leases, four to five years Capital Leases Future Minimum Payments Due In Two And Three Years Capital leases, two to three years Capital Leases Future Minimum Payments Due Thereafter Capital leases, more than five years Capital To Risk Weighted Assets Total risk-based capital ratio Carry Balance Of Loan Sold Carry Balance Of Loan Sold Loan sold Carrying Reported Amount Fair Value Disclosure [Member] Carrying (Reported) Amount, Fair Value Disclosure 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 Cash And Cash Equivalents Period Increase Decrease INCREASE/(DECREASE) IN CASH AND CASH EQUIVALENTS Cash And Cash Equivalents Policy [Text Block] Statement of Cash Flows Cash And Cash Equivalents Restricted Cash And Cash Equivalents Policy Cash Reserve Requirement Cash And Due From Banks Cash and due from banks Cash Paid During Period For [Abstract] Cash Paid During Period For [Abstract] Cash paid during the period for: Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield Accretion Accretion of PCI Term Pools Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Balance at end of period Balance at beginning of period Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Period Increase Decrease Accretion of income Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference Reclassification from nonaccretable difference Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To Nonaccretable Difference Reclassification to nonaccretable difference Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield [Table Text Block] Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Table [Text Block] Summary of Accretable Yield or Income Expected to be Collected for PCI Term Pools Purchased Certificates Of Deposit [Member] Certificates of Deposit Classified [Member] Classified [Member] Classified Classified One [Member] Classified One [Member] Loans Classified as Standard Classified Two [Member] Classified Two [Member] Loans Classified as Doubtful Collateralized Mortgage Obligations and Mortgage Backed Securities [Member] Collateralized Mortgage Obligations And Mortgage Backed Securities [Member] Collateralized Mortgage Obligations and Mortgage Backed Securities Collateralized Mortgage Obligations [Member] Mortgage Obligations Collection of Taxes Receivable Collection Of Taxes Receivable Collection of taxes receivable Commercial and Community Banking Segment [Member] Commercial And Community Banking Segment [Member] Commercial and Community Banking Commercial Loan [Member] Commercial Loan Type Commercial Loan Type [Axis] Commercial Loan Type [Axis] Commercial Loan Type [Axis] Commercial Loan Type [Domain] Commercial Loan Type [Domain] Commercial Loan Type [Domain] Commercial Portfolio Segment [Member] Commercial Portfolio Segment Commercial Real Estate and Construction Loans [Member] Commercial Real Estate And Construction Loans [Member] Commercial Real Estate and Construction Loans Commercial Real Estate [Member] Commercial Commitments And Contingencies Disclosure Table Commitments And Contingencies Disclosure Table [Text Block] Contractual Commitments Commitments And Contingencies Disclosure [Text Block] Commitments And Contingencies Commitments and Contingencies [Line Items] Commitments And Contingencies [Line Items] Commitments and Contingencies [Line Items] Commitments And Contingencies Policy [Text Block] Unfunded Loan Commitments and Letters of Credit Commitments and Contingencies [Table] Commitments And Contingencies [Table] Commitments and Contingencies [Table] Common Stock [Member] Common Stock 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 Outstanding Common stock, shares outstanding Common Stock Value Common stock ($0.001 par value; 50,000 authorized; 32,917 and 32,905 shares issued and outstanding at June 30, 2012, and December 31, 2011, respectively) Communications And Information Technology Telephone and data Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Component Of Other Expense Nonoperating [Line Items] Component of Other Expense, Nonoperating [Line Items] Component Of Other Expense Nonoperating [Table] Component of Other Expense, Nonoperating [Table] Component Of Other Income Nonoperating [Line Items] Component of Other Income, Nonoperating [Line Items] Component Of Other Income Nonoperating [Table] Component of Other Income, Nonoperating [Table] Comprehensive Income Net Of Tax TOTAL COMPREHENSIVE INCOME Consolidation Policy [Text Block] Basis of Presntation Consolidation Subsidiaries Or Other Investments Consolidated Entities Policy Consolidation of Subsidiaries and Variable Interest Entities Construction Loans [Member] Construction Loans Construction [Member] Construction [Member] Construction Consumer Loan [Member] Consumer Loan Type Consumer Loans Type [Axis] Consumer Loans Type [Axis] Consumer Loans Type [Axis] Consumer Loans Type [Domain] Consumer Loans Type [Domain] Consumer Loans Type [Domain] Consumer Portfolio Segment [Member] Consumer Portfolio Segment Contractual Obligation Maximum undiscounted future payments under conditional commitments Total Contractual Obligation Due After Fifth Year More than five years Contractual Obligation Due In Fourth And Fifth Year Three to five years Contractual Obligation Due In Next Twelve Months Less than one year Contractual Obligation Due In Second And Third Year One to three years Contractual Obligation Fiscal Year Maturity Schedule Table [Text Block] Contractual Lease Obligations Contractual Obligation [Line Items] Contractual Obligation [Line Items] Contractual Obligation [Line Items] Contractual Obligation [Table] Contractual Obligation [Table] Contractual Obligation [Table] Core Deposits [Member] Core Deposits Current Fiscal Year End Date Current Fiscal Year End Date Customer Fee Income Customer Fee Income Customer fee income Customer Relationships [Member] Customer Relationships Debt And Capital Lease Obligations [Abstract] Other borrowings: Debt Disclosure [Text Block] Other Borrowings Debt Instrument [Line Items] Debt Instrument [Line Items] Debt Instrument [Table] Schedule of Long-term Debt Instruments [Table] Debt Instrument Unamortized Discount Note payable debt discount Debt Policy [Text Block] Other Borrowings Debt Type [Axis] Debt Type [Axis] Debt Type [Axis] Debt Type [Domain] Debt Type [Domain] Debt Type [Domain] Deferred Income Tax Liabilities Deferred income tax liabilities Deferred Tax Assets Net of Tax Liability for Indefinite Lived Intangible Deferred Tax Assets Net Of Tax Liability For Indefinite Lived Intangible Net deferred tax asset, net of valuation allowance Deferred Tax Liabilities Deferred tax liabilities Deposits Deposits Total deposits Deposits [Abstract] Deposits Deposits Excluding Certificate Of Deposits [Member] Deposits Excluding Certificate Of Deposits [Member] Deposits Excluding Certificate of Deposits Depreciation Amortization And Accretion Net Depreciation, amortization and accretion Derivative Assets Assets at fair value Derivative By Nature [Axis] Derivative, by Nature [Axis] Derivative Liabilities Liabilities at fair value Derivative Name [Domain] Derivative, Name [Domain] Derivatives Policy [Text Block] Derivative Financial Instruments Direct Operating Income Loss Before Tax Direct Operating Income Loss Before Tax Direct income/(loss) before tax Disclosure - Accretable Yield or Income Expected to be Collected for PCI Term Pools Purchased [Abstract] Disclosure Accretable Yield Or Income Expected To Be Collected For P C I Term Pools Purchased [Abstract] Disclosure - Accretable Yield or Income Expected to be Collected for PCI Term Pools Purchased [Abstract] Disclosure - Aging of Past Due Loans on Individual Loan Basis at Net Carrying Amount [Abstract] Disclosure Aging Of Past Due Loans On Individual Loan Basis At Net Carrying Amount [Abstract] Disclosure - Aging of Past Due Loans on Individual Loan Basis at Net Carrying Amount [Abstract] Disclosure - Allocation of Goodwill By Segment [Abstract] Disclosure Allocation Of Goodwill By Segment [Abstract] Disclosure - Allocation of Goodwill By Segment [Abstract] Disclosure - Allowance for Loan and Lease Losses [Abstract] Disclosure Allowance For Loan And Lease Losses [Abstract] Disclosure - Allowance for Loan and Lease Losses [Abstract] Disclosure - Allowance for Loan and Lease Losses - Additional Information [Abstract] Disclosure Allowance For Loan And Lease Losses Additional Information [Abstract] Disclosure - Allowance for Loan and Lease Losses - Additional Information [Abstract] Disclosure - Allowance For Loan And Lease Losses by Impairment Methodology and Recorded Investment in Related Loan [Abstract] Disclosure Allowance For Loan And Lease Losses By Impairment Methodology And Recorded Investment In Related Loan [Abstract] Disclosure - Allowance For Loan And Lease Losses by Impairment Methodology and Recorded Investment in Related Loan [Abstract] Disclosure - Amortized Cost And Estimated Fair Value Of Debt Securities - Contractual Maturity [Abstract] Disclosure Amortized Cost And Estimated Fair Value Of Debt Securities Contractual Maturity [Abstract] Disclosure - Amortized Cost And Estimated Fair Value Of Debt Securities - Contractual Maturity [Abstract] Disclosure - Assets That Had Nonrecurring Fair Value Measurements to Carrying Value [Abstract] Disclosure Assets That Had Nonrecurring Fair Value Measurements To Carrying Value [Abstract] Disclosure - Assets That Had Nonrecurring Fair Value Measurements to Carrying Value [Abstract] Disclosure - Available for Sale Securities in an Unrealized Loss Position and Temporarily Impaired [Abstract] Disclosure Available For Sale Securities In An Unrealized Loss Position And Temporarily Impaired [Abstract] Disclosure - Available for Sale Securities in an Unrealized Loss Position and Temporarily Impaired [Abstract] Disclosure - Average Balance of Impaired Loans [Abstract] Disclosure Average Balance Of Impaired Loans [Abstract] Disclosure - Average Balance of Impaired Loans [Abstract] Disclosure - Balance of PCI Revolving Pools [Abstract] Disclosure Balance Of P C I Revolving Pools [Abstract] Disclosure - Balance of PCI Revolving Pools [Abstract] Disclosure - Balance of PCI Term Pools [Abstract] Disclosure Balance Of P C I Term Pools [Abstract] Disclosure - Balance of PCI Term Pools [Abstract] Disclosure - Carrying Value And Fair Value Of Financial Instruments [Abstract] Disclosure Carrying Value And Fair Value Of Financial Instruments [Abstract] Disclosure - Carrying Value And Fair Value Of Financial Instruments [Abstract] Disclosure - Classified and Nonclassified Loans at Net Carrying Values [Abstract] Disclosure Classified And Nonclassified Loans At Net Carrying Values [Abstract] Disclosure - Classified and Nonclassified Loans at Net Carrying Values [Abstract] Disclosure - Commitments And Contingencies - Additional Information [Abstract] Disclosure Commitments And Contingencies Additional Information [Abstract] Disclosure - Commitments And Contingencies - Additional Information [Abstract] Disclosure - Composition of Company's Loans Held for Investment Portfolio at Carrying Value [Abstract] Disclosure Composition Of Companys Loans Held For Investment Portfolio At Carrying Value [Abstract] Disclosure - Composition of Company's Loans Held for Investment Portfolio at Carrying Value [Abstract] Disclosure - Contractual Commitments [Abstract] Disclosure Contractual Commitments [Abstract] Disclosure - Contractual Commitments [Abstract] Disclosure - Contractual Lease Obligations [Abstract] Disclosure Contractual Lease Obligations [Abstract] Disclosure - Contractual Lease Obligations [Abstract] Disclosure - Deferred Tax Assets And Tax Provision - Additional Information [Abstract] Disclosure Deferred Tax Assets And Tax Provision Additional Information [Abstract] Disclosure - Deferred Tax Assets And Tax Provision - Additional Information [Abstract] Disclosure - Estimated Useful lives of Premises and Equipment [Abstract] Disclosure Estimated Useful Lives Of Premises And Equipment [Abstract] Disclosure - Estimated Useful lives of Premises and Equipment [Abstract] Disclosure - Goodwill and Intangible Assets [Abstract] Disclosure Goodwill And Intangible Assets [Abstract] Disclosure - Goodwill and Intangible Assets [Abstract] Disclosure - Information for Each Specific Operating Segment [Abstract] Disclosure Information For Each Specific Operating Segment [Abstract] Disclosure - Information for Each Specific Operating Segment [Abstract] Disclosure - Investment Securities - Additional Information [Abstract] Disclosure Investment Securities Additional Information [Abstract] Disclosure - Investment Securities - Additional Information [Abstract] Disclosure - Largest Items Included in other Noninterest Expense [Abstract] Disclosure Largest Items Included In Other Noninterest Expense [Abstract] Disclosure - Largest Items Included in other Noninterest Expense [Abstract] Disclosure - Largest Items Included in Other Noninterest Income [Abstract] Disclosure Largest Items Included In Other Noninterest Income [Abstract] Disclosure - Largest Items Included in Other Noninterest Income [Abstract] Disclosure - Loan Purchases [Abstract] Disclosure Loan Purchases [Abstract] Disclosure - Loan Purchases [Abstract] Disclosure - Loans - Additional Information [Abstract] Disclosure Loans Additional Information [Abstract] Disclosure - Loans - Additional Information [Abstract] Disclosure - Loans Classified as Nonperforming [Abstract] Disclosure Loans Classified As Nonperforming [Abstract] Disclosure - Loans Classified as Nonperforming [Abstract] Disclosure - Other Borrowings [Abstract] Disclosure Other Borrowings [Abstract] Disclosure - Other Borrowings [Abstract] Disclosure - Other Borrowings - Additional Information [Abstract] Disclosure Other Borrowings Additional Information [Abstract] Disclosure - Other Borrowings - Additional Information [Abstract] Disclosure - Other Intangible Assets, by Asset Class [Abstract] Disclosure Other Intangible Assets By Asset Class [Abstract] Disclosure - Other Intangible Assets, by Asset Class [Abstract] Disclosure - Reconciliation of Basic Earnings per Share and Diluted Earnings per Share [Abstract] Disclosure Reconciliation Of Basic Earnings Per Share And Diluted Earnings Per Share [Abstract] Disclosure - Reconciliation of Basic Earnings per Share and Diluted Earnings per Share [Abstract] Disclosure - Regulatory Matters - Additional Information [Abstract] Disclosure Regulatory Matters Additional Information [Abstract] Disclosure - Regulatory Matters - Additional Information [Abstract] Disclosure - Reserve for Unfunded Loan Commitments [Abstract] Disclosure Reserve For Unfunded Loan Commitments [Abstract] Disclosure - Reserve for Unfunded Loan Commitments [Abstract] Disclosure - Summarized Impaired Loans [Abstract] Disclosure Summarized Impaired Loans [Abstract] Disclosure - Summarized Impaired Loans [Abstract] Disclosure - Summary of Additional Information for Other Short Term Borrowings [Abstract] Disclosure Summary Of Additional Information For Other Short Term Borrowings [Abstract] Disclosure - Summary of Additional Information for Other Short Term Borrowings [Abstract] Disclosure - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis [Abstract] Disclosure Summary Of Assets And Liabilities Measured At Fair Value On Recurring Basis [Abstract] Disclosure - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis [Abstract] Disclosure - Summary of Carrying Balance of Loans Originated or Purchased [Abstract] Disclosure Summary Of Carrying Balance Of Loans Originated Or Purchased [Abstract] Disclosure - Summary of Carrying Balance of Loans Originated or Purchased [Abstract] Disclosure - Summary of Interest Income from Investment Securities [Abstract] Disclosure Summary Of Interest Income From Investment Securities [Abstract] Disclosure - Summary of Interest Income from Investment Securities [Abstract] Disclosure - Summary Of Investment Securities Held By Company [Abstract] Disclosure Summary Of Investment Securities Held By Company [Abstract] Disclosure - Summary Of Investment Securities Held By Company [Abstract] Disclosure - Summary of Loan Sale Activities by Loan Portfolio [Abstract] Disclosure Summary Of Loan Sale Activities By Loan Portfolio [Abstract] Disclosure - Summary of Loan Sale Activities by Loan Portfolio [Abstract] Disclosure - Summary of Loans Modified as TDRs [Abstract] Disclosure Summary Of Loans Modified As T D Rs [Abstract] Disclosure - Summary of Loans Modified as TDRs [Abstract] Disclosure - Summary of OREO by Loan Type [Abstract] Disclosure Summary Of O R E O By Loan Type [Abstract] Disclosure - Summary of OREO by Loan Type [Abstract] Disclosure - Summary of OREO Valuation Allowance Activity [Abstract] Disclosure Summary Of O R E O Valuation Allowance Activity [Abstract] Disclosure - Summary of OREO Valuation Allowance Activity [Abstract] Disclosure - Summary Of Significant Accounting Policies - Additional Information [Abstract] Disclosure Summary Of Significant Accounting Policies Additional Information [Abstract] Disclosure - Summary Of Significant Accounting Policies - Additional Information [Abstract] Disclosure - Troubled Debt Restructurings [Abstract] Disclosure Troubled Debt Restructurings [Abstract] Disclosure - Troubled Debt Restructurings [Abstract] Discount Premium On Financing Receivable Significant Purchases [Member] Discount Premium On Financing Receivable Significant Purchases [Member] Net, purchase discount