Name:	lqdt_AccruedExpensesAndOtherCurrentLiabilities
Namespace Prefix:	lqdt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the adjusted percentage of profits sharing distribution to the DLA Disposition Services by the entity.

No definition available.

Name:	lqdt_AdjustedPercentageOfProfitSharingDistribution
Namespace Prefix:	lqdt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the term of the contract, in PnYnMnDTnHnMnS format, for example, P1Y5M13D represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	lqdt_ContractTerm
Namespace Prefix:	lqdt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Number of material contracts with the DoD.

No definition available.

Name:	lqdt_NumberOfContracts
Namespace Prefix:	lqdt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Represents the percentage of profits from resale of the property retained by the entity.

No definition available.

Name:	lqdt_PercentageOfProfitsRetained
Namespace Prefix:	lqdt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the term of renewal options extended, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	lqdt_RenewalOptionsExtendedTerm
Namespace Prefix:	lqdt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Revenue From Contract With Customer, Number Of Contract Extensions

No definition available.

Name:	lqdt_RevenueFromContractWithCustomerNumberOfContractExtensions
Namespace Prefix:	lqdt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Represents the fixed percentage of DoD's original acquisition value at which the entity is required to purchase all usable surplus property offered to it by the Department of Defense.

No definition available.

Name:	lqdt_UsableSurplusPropertyToBePurchasedAsPercentageOfOriginalAcquisitionValue
Namespace Prefix:	lqdt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

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.

No definition available.

Name:	us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13537-108611

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Data Type:	num:percentItemType
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Period Type:	duration

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Namespace Prefix:
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Balance Type:
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Name:	us-gaap_TypeOfArrangementAxis=lqdt_SurplusContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesRevenueNetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_TypeOfArrangementAxis=lqdt_ScrapContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: