XML 40 R30.htm IDEA: XBRL DOCUMENT
v3.22.1

Summary of Significant Accounting Policies (Narrative) (Details) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2022 USD ($) Segment | Mar. 31, 2021
Summary Of Significant Accounting Policies [Line Items] |  |
Percentage of revenue specific to customer from net revenue | 7.00% | 10.00%
ASC 606 [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Number of reporting segment | Segment | 2 |
Deferred revenue | $ | $ 0.4 |
ASC 606 [Member] | Maximum [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Percentage of service revenue that is recognized over a period of time against total revenue | 1.00% |

X
- Definition Percentage of revenue specific to customer from net revenues. + References No definition available. + Details
Name: | hgbl_PercentageOfRevenueSpecificToCustomerFromNetRevenue
Namespace Prefix: | hgbl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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: | dtr-types: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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130531-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130549-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130532-203044 + 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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599 + 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: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |