Business Combination, Contingent Consideration, Liability, Term

No definition available.

Name:	lob_BusinessCombinationContingentConsiderationLiabilityTerm
Namespace Prefix:	lob_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Contingent Consideration Liability, Fair Value Disclosure

+ References

No definition available.

+ Details

Name:	lob_ContingentConsiderationLiabilityFairValueDisclosure
Namespace Prefix:	lob_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Impaired Loans Receivable, Measurement Input

+ References

No definition available.

+ Details

Name:	lob_ImpairedLoansReceivableMeasurementInput
Namespace Prefix:	lob_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

+ Details

Name:	us-gaap_AssetsFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Value of input used to measure contingent consideration liability from business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

+ Details

Name:	us-gaap_BusinessCombinationContingentConsiderationLiabilityMeasurementInput
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Value of input used to measure real estate owned by financial institution by financial institution which is not directly related to its business.

+ References

+ Details

Name:	us-gaap_OtherRealEstateOwnedMeasurementInput
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

+ References

+ Details

Name:	us-gaap_WarrantsAndRightsOutstandingMeasurementInput
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

+ Details

Name:	us-gaap_WarrantsAndRightsOutstandingTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByAssetClassAxis=lob_ImpairedLoansandLeasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ValuationTechniqueAxis=us-gaap_MarketApproachValuationTechniqueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputDiscountRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ValuationTechniqueAxis=us-gaap_IncomeApproachValuationTechniqueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_WeightedAverageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByAssetClassAxis=lob_ForeclosedAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByAssetClassAxis=lob_EquityWarrantAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputPriceVolatilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputRiskFreeInterestRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedTermMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByAssetClassAxis=lob_ContingentConsiderationLiabilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedDividendRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Fair Value of Financial Instruments - Analysis of Level 3 Valuation Techniques (Details) - Level 3 $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($)	Sep. 30, 2018 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration liability, fair value	$ 1,900
Impaired Loans and Leases
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Asset, fair value	$ 34,493	$ 79,727
Impaired Loans and Leases \| Discounted appraisals Discounted expected cash flows \| Minimum \| Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, measurement input	0.10	0.10
Impaired Loans and Leases \| Discounted appraisals Discounted expected cash flows \| Maximum \| Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, measurement input	0.25	0.48
Impaired Loans and Leases \| Discounted appraisals \| Weighted Average \| Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, measurement input	0.0626	0.0616
Foreclosed Assets
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Asset, fair value	$ 1,281	$ 1,429
Foreclosed Assets \| Discounted appraisals Discounted expected cash flows \| Minimum \| Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Foreclosed assets, measurement input	0.10	0.09
Foreclosed Assets \| Discounted appraisals Discounted expected cash flows \| Maximum \| Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Foreclosed assets, measurement input	0.37	0.37
Equity Warrant Assets
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Asset, fair value		$ 538
Equity Warrant Assets \| Discounted appraisals Discounted expected cash flows \| Price Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input		0.2000
Equity Warrant Assets \| Discounted appraisals Discounted expected cash flows \| Risk Free Interest Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input		0.0285
Equity Warrant Assets \| Discounted appraisals Discounted expected cash flows \| Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input		0.20
Equity Warrant Assets \| Discounted appraisals Discounted expected cash flows \| Minimum \| Expected Term
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, term		9 years
Equity Warrant Assets \| Discounted appraisals Discounted expected cash flows \| Maximum \| Expected Term
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, term		10 years
Contingent Consideration Liability \| Discounted appraisals Discounted expected cash flows \| Price Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration liability, measurement input	0.2500
Contingent Consideration Liability \| Discounted appraisals Discounted expected cash flows \| Risk Free Interest Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration liability, measurement input	0.0143
Contingent Consideration Liability \| Discounted appraisals Discounted expected cash flows \| Expected Term
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration liability, term	3 years
Contingent Consideration Liability \| Discounted appraisals Discounted expected cash flows \| Expected Dividend Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration liability, measurement input	0.0051