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COMMITMENTS AND CONTINGENCIES (Royalty Commitments) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Long-term Purchase Commitment [Line Items] |  |  |
Proceeds from grants received | $ 55 us-gaap_RevenueFromGrants | $ 150 us-gaap_RevenueFromGrants | $ 109 us-gaap_RevenueFromGrants
OCS [Member] |  |  |
Long-term Purchase Commitment [Line Items] |  |  |
Royalty rates | 3.50%rdcm_PercentageOfRevenueRoyalties / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_OfficeOfChiefScientistMember |  |
Percent of grants received paid in royalties | 100.00%rdcm_RequiredPercentageOfDollarLinkedAmountsOfGrantsReceived / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_OfficeOfChiefScientistMember |  |
Proceeds from grants received | 36,685 us-gaap_RevenueFromGrants / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_OfficeOfChiefScientistMember |  |
Accumulated interest, grants | 12,709 rdcm_GovernmentGrantsAccruedInterest / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_OfficeOfChiefScientistMember |  |
Accumulated royalties paid | 10,918 us-gaap_PaymentsForRoyalties / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_OfficeOfChiefScientistMember |  |
Total commitment with respect to royalty-bearing participation received, net of royalties paid | 38,476 us-gaap_AccruedRoyaltiesCurrentAndNoncurrent / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_OfficeOfChiefScientistMember |  |
Royalty expenses | 827 us-gaap_DirectOperatingCostRoyaltyExpense / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_OfficeOfChiefScientistMember | 706 us-gaap_DirectOperatingCostRoyaltyExpense / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_OfficeOfChiefScientistMember | 562 us-gaap_DirectOperatingCostRoyaltyExpense / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_OfficeOfChiefScientistMember
BIRD-F [Member] |  |  |
Long-term Purchase Commitment [Line Items] |  |  |
Royalty rates | 5.00%rdcm_PercentageOfRevenueRoyalties / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_IsraelUnitedStatesBiNationalIndustrialResearchAndDevelopmentFoundationMember |  |
Percent of grants received paid in royalties | 150.00%rdcm_RequiredPercentageOfDollarLinkedAmountsOfGrantsReceived / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_IsraelUnitedStatesBiNationalIndustrialResearchAndDevelopmentFoundationMember |  |
Proceeds from grants received | 340 us-gaap_RevenueFromGrants / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_IsraelUnitedStatesBiNationalIndustrialResearchAndDevelopmentFoundationMember |  |
Royalties due based on stated percentage | 789 rdcm_RoyaltiesPayableBasedOnStatedRepaymentFactor / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_IsraelUnitedStatesBiNationalIndustrialResearchAndDevelopmentFoundationMember |  |
Linkage to the United States Consumer Price Index | 434 rdcm_RoyaltyPayableLinkage / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_IsraelUnitedStatesBiNationalIndustrialResearchAndDevelopmentFoundationMember |  |
Accumulated royalties paid | 355 us-gaap_PaymentsForRoyalties / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_IsraelUnitedStatesBiNationalIndustrialResearchAndDevelopmentFoundationMember |  |
Israeli Ministry of Trade [Member] |  |  |
Long-term Purchase Commitment [Line Items] |  |  |
Royalty rates | 3.00%rdcm_PercentageOfRevenueRoyalties / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_IsraeliMinistryOfTradeMember |  |
Proceeds from grants received | $ 314 us-gaap_RevenueFromGrants / us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis = rdcm_IsraeliMinistryOfTradeMember |  |
Maximum term for required royalty payments | 5 years |  |

X
- Definition Increase for accrued, but unpaid interest on grants for the period. + References No definition available. + Details
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- Definition Represents the maximum length of the contractual obligation to pay royalites. + References No definition available. + Details
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- Definition Royalties fees as a percentage of revenues from products developed from research and development and marketing projects financed. + References No definition available. + Details
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- Definition Percent of dollar-linked amounts of the grants received required to be paid in royalties. + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for royalties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph a -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 5 -Article 9 + Details
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- Definition Royalty expense incurred and are directly related to goods produced and sold and services rendered during the reporting period. + 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 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition The amount of cash paid for royalties during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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- Definition Revenue earned during the period from non-repayable sum of money awarded to an entity to carry out a specific purpose as provided in grant agreements. + 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(e)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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