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Schedule of Indefinite-Lived Intangible Assets (Details) (Trade Name [Member], NLEX [Member], USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Trade Name [Member] | NLEX [Member] |  |
Unamortized Intangible Assets | $ 2,437 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_BusinessAcquisitionAxis = hgbl_NlexMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember | $ 0 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_BusinessAcquisitionAxis = hgbl_NlexMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember

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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant