Organization	12 Months Ended
Sep. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	1. Organization Liquidity Services, Inc. (Liquidity Services, the Company) is the leading global provider of e-commerce marketplaces and software solutions powering the circular economy. We create a better future for organizations, individuals, and the planet by using technology to capture and unleash the intrinsic value of surplus. We connect millions of buyers and thousands of sellers through our leading e-commerce auction marketplaces, search engines, asset management and auction software, and related services. Our comprehensive solutions enable the transparent, efficient, sustainable recovery of value from excess items owned by business and government sellers. Our business delivers value to shareholders by unleashing the intrinsic value of surplus through our online marketplace platforms. These platforms ignite and enable a self-reinforcing cycle of value creation where buyers and sellers attract one another in greater numbers. The result of this cycle is a continuous flow of goods that becomes increasingly valuable as more participants join the platforms, thereby creating positive network effects that benefit sellers, buyers, and shareholders. Incorporated in Delaware as Liquidation.com in November 1999, Liquidity Services has over 25 years of industry experience. Reportable Segments The Company has five operating segments and three reportable segments under which we conduct business: GovDeals, Retail Supply Chain Group (RSCG), and Capital Assets Group (CAG). Our separate Machinio and Software Solutions operating segments, which do not individually meet the quantitative thresholds to be reportable segments, are combined and presented together as Machinio & Software Solutions for segment reporting purposes. Further information and operating results of our reportable segments can be found in Note 16 - Segment Information. • GovDeals. The GovDeals reportable segment provides solutions that enable government entities including city, county, state and federal agencies located in the United States and Canada and related commercial businesses to sell surplus property and real estate assets through its GovDeals, Bid4Assets and Sierra marketplaces; see Note 3 - Acquisitions. • RSCG. The RSCG reportable segment consists of marketplaces that enable corporations located in the United States and Canada to sell excess, returned, and overstocked consumer goods. RSCG also offers a suite of services that includes returns management, asset recovery, and e-commerce solutions. This segment uses multiple selling channels across our network of marketplaces and others to optimize the best combination of velocity, volume, and value. This segment primarily conducts its business-to-business sales on its Liquidation.com marketplace and through Direct Sales, and direct-to-consumer sales on its AllSurplus Deals and Secondipity marketplaces and other third-party sales channels. • CAG. The CAG reportable segment enables commercial businesses to sell surplus assets on our AllSurplus and GovDeals marketplace, specializing in asset categories such as heavy equipment, industrial manufacturing, oil and gas, biopharma, fast-moving consumer goods and electronics. CAG also offers a suite of services that includes surplus management, asset valuation, asset sales and marketing. CAG clients benefit from its global base of buyers and sellers, enabling the sale and redeployment of assets wherever they generate the best value and highest use across the world. • Machinio & Software Solutions. The Machinio operating segment operates the Machinio marketplace, a global search engine platform for listing equipment for sale in the construction, machine tool, processing, transportation, printing, agriculture, and laboratory/medical sectors, and the Machinio System platform that provides equipment sellers with a suite of software tools including website hosting, email marketing, and inventory management, to support and enable equipment sellers’ online business. The Software Solutions operating segment separately serves as the Company's private-label auction and software-as-a-service (SaaS) arm, offering scalable auction platform services to entrepreneurs and businesses. The Company's operations are subject to certain risks and uncertainties, many of which are associated with technology-oriented companies, including, but not limited to, the Company's dependence on use of the Internet; the effect of general business and economic trends including inflationary pressures and impacts from interest rate changes; tariffs and other trade barriers; ongoing international armed and geopolitical conflicts; susceptibility to rapid technological change; actual and potential competition by entities with greater financial and other resources; collectability of payment from our buyers; and the potential for the commercial sellers from which the Company derives a significant portion of its inventory to change the way they conduct their disposition of surplus assets or to otherwise terminate or not renew their contracts with the Company.

Organization

12 Months Ended

Sep. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

1. Organization

Liquidity Services, Inc. (Liquidity Services, the Company) is the leading global provider of e-commerce marketplaces and software solutions powering the circular economy. We create a better future for organizations, individuals, and the planet by using technology to capture and unleash the intrinsic value of surplus. We connect millions of buyers and thousands of sellers through our leading e-commerce auction marketplaces, search engines, asset management and auction software, and related services. Our comprehensive solutions enable the transparent, efficient, sustainable recovery of value from excess items owned by business and government sellers.

Our business delivers value to shareholders by unleashing the intrinsic value of surplus through our online marketplace platforms. These platforms ignite and enable a self-reinforcing cycle of value creation where buyers and sellers attract one another in greater numbers. The result of this cycle is a continuous flow of goods that becomes increasingly valuable as more participants join the platforms, thereby creating positive network effects that benefit sellers, buyers, and shareholders.

Incorporated in Delaware as Liquidation.com in November 1999, Liquidity Services has over 25 years of industry experience.

Reportable Segments

The Company has five operating segments and three reportable segments under which we conduct business: GovDeals, Retail Supply Chain Group (RSCG), and Capital Assets Group (CAG). Our separate Machinio and Software Solutions operating segments, which do not individually meet the quantitative thresholds to be reportable segments, are combined and presented together as Machinio & Software Solutions for segment reporting purposes. Further information and operating results of our reportable segments can be found in Note 16 - Segment Information.

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GovDeals. The GovDeals reportable segment provides solutions that enable government entities including city, county, state and federal agencies located in the United States and Canada and related commercial businesses to sell surplus property and real estate assets through its GovDeals, Bid4Assets and Sierra marketplaces; see Note 3 - Acquisitions.

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RSCG. The RSCG reportable segment consists of marketplaces that enable corporations located in the United States and Canada to sell excess, returned, and overstocked consumer goods. RSCG also offers a suite of services that includes returns management, asset recovery, and e-commerce solutions. This segment uses multiple selling channels across our network of marketplaces and others to optimize the best combination of velocity, volume, and value. This segment primarily conducts its business-to-business sales on its Liquidation.com marketplace and through Direct Sales, and direct-to-consumer sales on its AllSurplus Deals and Secondipity marketplaces and other third-party sales channels.

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CAG. The CAG reportable segment enables commercial businesses to sell surplus assets on our AllSurplus and GovDeals marketplace, specializing in asset categories such as heavy equipment, industrial manufacturing, oil and gas, biopharma, fast-moving consumer goods and electronics. CAG also offers a suite of services that includes surplus management, asset valuation, asset sales and marketing. CAG clients benefit from its global base of buyers and sellers, enabling the sale and redeployment of assets wherever they generate the best value and highest use across the world.

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Machinio & Software Solutions. The Machinio operating segment operates the Machinio marketplace, a global search engine platform for listing equipment for sale in the construction, machine tool, processing, transportation, printing, agriculture, and laboratory/medical sectors, and the Machinio System platform that provides equipment sellers with a suite of software tools including website hosting, email marketing, and inventory management, to support and enable equipment sellers’ online business. The Software Solutions operating segment separately serves as the Company's private-label auction and software-as-a-service (SaaS) arm, offering scalable auction platform services to entrepreneurs and businesses.

The Company's operations are subject to certain risks and uncertainties, many of which are associated with technology-oriented companies, including, but not limited to, the Company's dependence on use of the Internet; the effect of general business and economic trends including inflationary pressures and impacts from interest rate changes; tariffs and other trade barriers; ongoing international armed and geopolitical conflicts; susceptibility to rapid technological change; actual and potential competition by entities with greater financial and other resources; collectability of payment from our buyers; and the potential for the commercial sellers from which the Company derives a significant portion of its inventory to change the way they conduct their disposition of surplus assets or to otherwise terminate or not renew their contracts with the Company.