XML 37 R25.htm IDEA: XBRL DOCUMENT v3.19.1

Summary of Significant Accounting Policies (Narrative) (Details) - ASC 606 [Member]	3 Months Ended
	Mar. 31, 2019 USD ($) Segment
Summary Of Significant Accounting Policies [Line Items]
Number of reporting segment | Segment	1
Percentage of service revenue that is recognized over a period of time against total revenue	1.00%
Deferred revenue | $	$ 549,000

X

- Definition

Percentage of service revenue that is recognized over a period of time against gross revenue.

+ References

No definition available.

+ Details

Name:	hgbl_PercentageOfServiceRevenueThatIsRecognizedOverPeriodOfTimeAgainstGrossRevenue
Namespace Prefix:	hgbl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Summary of significant accounting policies.

+ References

No definition available.

+ Details

Name:	hgbl_SummaryOfSignificantAccountingPoliciesLineItems
Namespace Prefix:	hgbl_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130531-203044

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130532-203044

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

+ Details

Name:	us-gaap_ContractWithCustomerLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201409Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: