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Schedule of results of operations attributable to the company from the Joint Ventures in which it is invested (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Gross revenues |  |  | $ 5,056 | $ 5,976
Gross profit |  |  | 907 | 1,445
Income from continuing operations |  |  | 1,265 | 1,449
Net income | $ 456 | $ 222 | $ 1,265 | $ 1,449

X
- Definition The amount of gross profit (loss) reported by an Asset Liquidation Investment of the Company, and attributable to the Company as its share. + References No definition available. + Details
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X
- Definition The amount of income (loss) from continuing operations, before extraordinary items, reported by an Asset Liquidation Investment of the Company, and attributable to the Company as its share. + References No definition available. + Details
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Namespace Prefix: | hgbl_
Data Type: | xbrli:monetaryItemType
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X
- Definition The amount of revenue from sale of goods and services, reduced by sales returns, allowances, and discounts, reported by an Asset Liquidation Investment of the Company, and attributable to the Company as its share. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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X
- Definition Company's proportionate share of Joint Ventures' net income (loss) reported in the consolidated statement of operations as Earnings (Loss) of Equity Accounted Asset Liquidation Investments and attributable to the Company as its share. + References No definition available. + Details
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Namespace Prefix: | hgbl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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