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Schedule of Lease Amounts Paid to Related Parties (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Amount charged on Leased Premises | $ 57 | $ 96
White Plains, NY [Member] |  |
Amount charged on Leased Premises | 0 | 33
Los Angeles,CA [Member] |  |
Amount charged on Leased Premises | 0 | 6
Foster City, CA [Member] |  |
Amount charged on Leased Premises | $ 57 | $ 57

X
- Definition Amount of lease expense paid to related party during the financial reporting period. + References No definition available. + Details
Name: | hgbl_LeaseExpensePaidToRelatedParty
Namespace Prefix: | hgbl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration