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Transferable renewable energy credits Transferable Energy Credit Transferable Energy Credit Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total assets at fair value Asset, Fair Value Assets, Fair Value Disclosure Proceeds from sale of foreclosed assets Proceeds from Sale of Foreclosed Assets Name Measure Name Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Domain] Total unfunded off-balance-sheet credit risk Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability Number of securities in unrealized loss positions for less than 12 months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Collateral Dependent Loans, Business Assets Collateral-Dependent Loans Business Assets [Member] Collateral dependent loans, business assets. Loans Insured or Guaranteed by Government Authorities Loans Insured or Guaranteed by Government Authorities [Axis] Loans and fees on loans Interest and Fee Income, Financing Receivable Entity Filer Category Entity Filer Category Securities in unrealized loss position, total, fair value Debt Securities, Available-for-Sale, Unrealized Loss Position Schedule of Commitments Schedule of Fair Value, off-Balance-Sheet Risks [Table Text Block] Revision of Prior Period [Axis] Revision of Prior Period [Axis] Within one year Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost Name Trading Arrangement, Individual Name Remaining life Measurement Input, Expected Term [Member] Canapi Funds Canapi Funds [Member] Canapi Funds Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Company Selected Measure Amount Company Selected Measure Amount Financial Asset, Aging Financial Asset, Aging [Axis] Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Deposits: Deposits [Abstract] Discount rate (in percent) Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate Net income Net income Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Nonaccruals, Unpaid Principal Balance Fair Value Option, Loans Held As Assets, Aggregate Amount In Nonaccrual Status, Unpaid Principal Balance Fair value option loans held as assets aggregate amount in nonaccrual status unpaid principal balance. Income tax expense Income Tax Expense (Benefit) Total noninterest expense Noninterest Expense Award Timing Method Award Timing Method [Text Block] Net increase in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Charge offs Charge offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Servicing Assets Transfers and Servicing of Financial Assets [Text Block] Accrued interest receivable on available-for-sale securities Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss Recent Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Text Block] Net income attributable to Live Oak Bancshares, Inc. Net Income (Loss) Attributable to Parent Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Loan Restructuring Modification Loan Restructuring Modification [Domain] Small Business Banking Small Business Banking Sector [Member] Small business banking sector. Discounted expected cash flows Valuation Technique, Discounted Cash Flow [Member] Proceeds from sale of premises and equipment Proceeds from Sale of Property, Plant, and Equipment Certificates of deposit with other banks Certificates of deposit with other banks Cash Equivalent, Certificate of Deposit, Carrying Value Statement [Table] Statement [Table] Schedule Of Financing Receivables Past Due [Table] Financing Receivable, Past Due [Table] Restatement Determination Date: Restatement Determination Date [Axis] Stock option exercises Proceeds from Stock Options Exercised Fiscal year before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Schedule of Nonaccrual Loans and Leases Financing Receivable, Nonaccrual [Table Text Block] New equity warrant assets Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Issues Schedule of Rollforward of Level 3 Equity Warrant Asset Fair Values Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Loans held for sale Loan, Held-for-Sale, Fair Value Disclosure Southeast US Southeast Region [Member] Balance at beginning of period Balance at end of period Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs Net gain (loss) on loans accounted for under the fair value option Net loss (gain) on loans accounted for under fair value option Net Gains (Losses) on Loans Accounted for under the Fair Value Option Fair Value, Option, Changes in Fair Value, Gain (Loss) Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Equity security investment with a non-readily determinable fair value, measurement input Security Owned Not Readily Marketable, Measurement Input Security Owned Not Readily Marketable, Measurement Input