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SELECTED STATEMENTS OF OPERATIONS DATA (Schedule of Revenues From Sales to Unaffiliated Customers) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Revenues	$ 23,636us-gaap_Revenues	$ 20,482us-gaap_Revenues	$ 15,786us-gaap_Revenues
North America [Member]
Segment Reporting Information [Line Items]
Revenues	1,922us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = rdcm_NorthAmericaMemberExtendedMember	1,687us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = rdcm_NorthAmericaMemberExtendedMember	3,850us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = rdcm_NorthAmericaMemberExtendedMember
Europe [Member]
Segment Reporting Information [Line Items]
Revenues	3,189us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = rdcm_EuropeMemberExtendedMember	4,044us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = rdcm_EuropeMemberExtendedMember	2,970us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = rdcm_EuropeMemberExtendedMember
Asia (Excluding Philippines) [Member]
Segment Reporting Information [Line Items]
Revenues	847us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = rdcm_AsiaMemberExtendedMember	435us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = rdcm_AsiaMemberExtendedMember	1,534us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = rdcm_AsiaMemberExtendedMember
Philippines [Member]
Segment Reporting Information [Line Items]
Revenues	3,544us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = country_PH	3,173us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = country_PH	1,292us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = country_PH
South America (Excluding Brazil) [Member]
Segment Reporting Information [Line Items]
Revenues	4,235us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = rdcm_SouthAmericaExcludingBrazilMember	4,579us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = rdcm_SouthAmericaExcludingBrazilMember	2,848us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = rdcm_SouthAmericaExcludingBrazilMember
Brazil [Member]
Segment Reporting Information [Line Items]
Revenues	6,448us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = country_BR	5,469us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = country_BR	1,896us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = country_BR
Other (Including Israel) [Member]
Segment Reporting Information [Line Items]
Revenues	$ 3,451us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember	$ 1,095us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember	$ 1,396us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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