Business acquisition cost of acquired entity working capital adjustment.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Cash divested from business divestiture.

+ References

No definition available.

+ Details

Name:	rell_CashDivestedFromBusinessDivestiture
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Data Type:	xbrli:stringItemType
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Period Type:	duration

- Definition

Working capital adjustment on divestiture of business division.

+ References

No definition available.

+ Details

Name:	rell_WorkingCapitalAdjustmentOnDivestitureOfBusinessDivision
Namespace Prefix:	rell_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3179-108585

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 15, 16

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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Balance Type:	debit
Period Type:	duration

Description of Company - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended
	Mar. 01, 2011	Dec. 03, 2011	May 28, 2011	Sep. 05, 2011	Sep. 05, 2011 Powerlink Specialist Electronics Support Limited	Sep. 04, 2012 D and C Import-Export Inc.
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Sale of assets and liabilities to Arrow Electronics, Inc.	$ 238.8
Working Capital Adjustment on Divestiture of Business Division	27.0		4.2
Cash Divested From Business Divestiture		3.9
Acquisition of assets					2.3	2.6
Working capital adjustment related to payables paid by Powerlink				$ 0.2	$ 0.2