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Basis of Presentation (Additional Information) (Details) - Common Stock [Member] - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2024	Sep. 13, 2024
Common share purchased, amount	$ 4.0	$ 4.0	$ 6.0
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	601,449	601,449
Remained share purchase amount under the programme	$ 4.1	$ 4.1
Share repurchase price amount	$ 1.1	$ 1.1

X

- Definition

Share repurchase price amount

+ References

No definition available.

+ Details

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Namespace Prefix:	hgbl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481520/505-30-50-4

+ Details

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Balance Type:	credit
Period Type:	instant

X

- Definition

Number of shares authorized to be purchased under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481520/505-30-50-4

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- Definition

Amount remaining authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

No definition available.

+ Details

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Period Type:	instant

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