GOODS HELD FOR SALE OR AUCTION (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Long Lived Assets Held-for-sale [Line Items]
Assets Held-For-Sale, Property, Plant and Equipment		$ 4,026
Assets Held For Sale Market Adjustment		1,297
Assets Held For Sale, Aircraft parts and other	$ 1,329	1,297
Notes Payable, Current, Total		6,570
Oil Rigs [Member]
Long Lived Assets Held-for-sale [Line Items]
Assets Held For Sale Market Adjustment		$ 1,782

Amount classified as aircraft and other attributable to disposal group held for sale or disposed of.

No definition available.

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- Definition

This represents the assets which are held for sale as of the reporting date.

+ References

No definition available.

+ Details

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Namespace Prefix:	rily_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Amount classified as property, plant and equipment attributable to disposal group held for sale or disposed of.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1436-107760

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 45

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19,20)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20

-Article 5

+ Details

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- Details

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