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SUBSEQUENT EVENTS (Details)	0 Months Ended	12 Months Ended
	Feb. 02, 2015	Dec. 31, 2014
SUBSEQUENT EVENTS [Line Items]
Number of shares available for grant approved by Board of Directors		24,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Vesting period	1 year	1 year
Subsequent Event [Member] | Share Option Plan 2013 [Member]
SUBSEQUENT EVENTS [Line Items]
Number of outstanding shares reserved before increment	500,000rdcm_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedBeforeIncrement / us-gaap_PlanNameAxis = rdcm_ShareOptionPlan2013Member / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Number of outstanding shares reserved	750,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_PlanNameAxis = rdcm_ShareOptionPlan2013Member / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Number of shares available for grant approved by Board of Directors	191,750us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_PlanNameAxis = rdcm_ShareOptionPlan2013Member / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Number of shares available for grant which are subject to shareholders approval	10,000rdcm_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantWhichAreSubjectToShareholdersApproval / us-gaap_PlanNameAxis = rdcm_ShareOptionPlan2013Member / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

X

- Definition

Represents maximum number of shares reserved before increment, net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan.

+ References

No definition available.

+ Details

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X

- Definition

Represents number of shares available for grant which are subject to shareholders approval.

+ References

No definition available.

+ Details

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X

- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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