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SIGNIFICANT ACCOUNTING POLICIES (Changes in the Liability for Product Warranty) (Details) | 12 Months Ended
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Dec. 31, 2014
SIGNIFICANT ACCOUNTING POLICIES [Abstract] |
Product warranty period | 12 months

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- Definition Period the product warranty is effective, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | rdcm_ProductWarrantyPeriod
Namespace Prefix: | rdcm_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration