Document and Entity Information - USD ($) $ in Millions	12 Months Ended
Document and Entity Information - USD ($) $ in Millions	Dec. 31, 2024	Mar. 01, 2025	Jun. 30, 2024
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2024
Entity Registrant Name	HERITAGE GLOBAL INC.
Entity Central Index Key	0000849145
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		35,495,057
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well Known Seasoned Issuer	No
Entity Public Float			$ 79.8
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	FY
Entity File Number	001-39471
Entity Tax Identification Number	59-2291344
ICFR Auditor Attestation Flag	false
Entity Address, Postal Zip Code	92130
City Area Code	858
Local Phone Number	847-0659
Entity Incorporation, State or Country Code	FL
Entity Address, Address Line One	12625 High Bluff Drive
Entity Address, Address Line Two	Suite 305
Entity Address, City or Town	San Diego
Entity Address, State or Province	CA
Entity Interactive Data Current	Yes
Title of 12(b) Security	Common stock, $0.01 par value
Document Financial Statement Error Correction [Flag]	false
Document Annual Report	true
Document Transition Report	false
Trading Symbol	HGBL
Security Exchange Name	NASDAQ
Documents Incorporated by Reference	Portions of the Registrant’s definitive Proxy Statement for its 2025 Annual Meeting of Stockholders are incorporated by reference into Part III hereof.
Auditor Name	UHY LLP
Auditor Location	West Des Moines, Iowa
Auditor Firm ID	1195
Auditor Opinion [Text Block]	Opinion on the Financial Statements We have audited the accompanying consolidated balance sheets of Heritage Global Inc. and subsidiaries (the Company) as of December 31, 2024 and 2023, and the related consolidated statements of income, stockholders’ equity, and cash flows for each of the years then ended, and the related notes (collectively referred to as the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2024 and 2023, and the results of its operations and its cash flows for each of the years then ended, in conformity with accounting principles generally accepted in the United States of America.

Heritage Global Inc. 10-K