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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Cash flows used in operating activities: |  |  |
Net income (loss) | $ 726 us-gaap_NetIncomeLoss | $ (1,420)us-gaap_NetIncomeLoss | $ (5,987)us-gaap_NetIncomeLoss
Adjustments to reconcile net income (loss) to net cash used in operating activities: |  |  |
Depreciation | 87 us-gaap_Depreciation | 108 us-gaap_Depreciation | 119 us-gaap_Depreciation
Share-based compensation | 579 us-gaap_ShareBasedCompensation | 499 us-gaap_ShareBasedCompensation | 672 us-gaap_ShareBasedCompensation
Increase (decrease) in severance pay, net | (7)us-gaap_IncreaseDecreaseInPostemploymentObligations | (19)us-gaap_IncreaseDecreaseInPostemploymentObligations | 10 us-gaap_IncreaseDecreaseInPostemploymentObligations
Decrease (increase) in trade receivables net of allowance for doubtful accounts | 61 us-gaap_IncreaseDecreaseInAccountsReceivable | (2,716)us-gaap_IncreaseDecreaseInAccountsReceivable | 2,080 us-gaap_IncreaseDecreaseInAccountsReceivable
Decrease in other current assets | 804 us-gaap_IncreaseDecreaseInOtherCurrentAssets | 348 us-gaap_IncreaseDecreaseInOtherCurrentAssets | 767 us-gaap_IncreaseDecreaseInOtherCurrentAssets
Decrease (increase) in inventories | 1,379 us-gaap_IncreaseDecreaseInInventories | 2,131 us-gaap_IncreaseDecreaseInInventories | (222)us-gaap_IncreaseDecreaseInInventories
Increase (decrease) in trade payables | (705)us-gaap_IncreaseDecreaseInAccountsPayable | 348 us-gaap_IncreaseDecreaseInAccountsPayable | (775)us-gaap_IncreaseDecreaseInAccountsPayable
Increase (decrease) in employees and payroll accrued | 276 us-gaap_IncreaseDecreaseInOtherEmployeeRelatedLiabilities | 123 us-gaap_IncreaseDecreaseInOtherEmployeeRelatedLiabilities | (88)us-gaap_IncreaseDecreaseInOtherEmployeeRelatedLiabilities
Increase (decrease) in other accounts payable and accrued expenses | 584 us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities | (9)us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities | (131)us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities
Interest and linkage on short-term loan and restricted cash | (4)rdcm_InterestExpenseOtherAndInterestIncomeOtherDomesticDepositsNet | 8 rdcm_InterestExpenseOtherAndInterestIncomeOtherDomesticDepositsNet | 12 rdcm_InterestExpenseOtherAndInterestIncomeOtherDomesticDepositsNet
Increase (decrease) in deferred revenue and advances from customers | (394)us-gaap_IncreaseDecreaseInDeferredRevenueAndCustomerAdvancesAndDeposits | (1,531)us-gaap_IncreaseDecreaseInDeferredRevenueAndCustomerAdvancesAndDeposits | 1,082 us-gaap_IncreaseDecreaseInDeferredRevenueAndCustomerAdvancesAndDeposits
Net cash provided (used) in operating activities | 3,386 us-gaap_NetCashProvidedByUsedInOperatingActivities | (2,130)us-gaap_NetCashProvidedByUsedInOperatingActivities | (2,461)us-gaap_NetCashProvidedByUsedInOperatingActivities
Cash flows used in investing activities: |  |  |
Investment in Restricted bank deposits |  | (38)us-gaap_IncreaseDecreaseInRestrictedCash | (1,437)us-gaap_IncreaseDecreaseInRestrictedCash
Maturity of Restricted bank deposits | 1,477 us-gaap_ProceedsFromSaleOfRestrictedInvestments |  |
Purchase of property and equipment | (65)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (88)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (66)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Net cash provided (used) in investing activities | 1,412 us-gaap_NetCashProvidedByUsedInInvestingActivities | (126)us-gaap_NetCashProvidedByUsedInInvestingActivities | (1,503)us-gaap_NetCashProvidedByUsedInInvestingActivities
Cash flows from financing activities: |  |  |
Receipts (repayment) of short-term bank credit, net | (629)us-gaap_ProceedsFromBankDebt | (429)us-gaap_ProceedsFromBankDebt | 1,058 us-gaap_ProceedsFromBankDebt
Receipts (repayment) of short-term loan (includes $750 from related party) |  | (1,550)us-gaap_ProceedsFromNotesPayable | 1,500 us-gaap_ProceedsFromNotesPayable
Proceeds from issuance of shares and warrants , net of issuance expenses of $ 35 (private placement) |  | 3,424 us-gaap_ProceedsFromIssuanceOfPrivatePlacement |
Exercise of warrants | 21 us-gaap_ProceedsFromWarrantExercises | 256 us-gaap_ProceedsFromWarrantExercises |
Exercise of options | 1,694 us-gaap_ProceedsFromStockOptionsExercised | 226 us-gaap_ProceedsFromStockOptionsExercised | 45 us-gaap_ProceedsFromStockOptionsExercised
Net cash provided by financing activities | 1,086 us-gaap_NetCashProvidedByUsedInFinancingActivities | 1,927 us-gaap_NetCashProvidedByUsedInFinancingActivities | 2,603 us-gaap_NetCashProvidedByUsedInFinancingActivities
Foreign currency translation adjustments on cash and cash equivalents | (221)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents | 40 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents | (66)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
Increase in cash and cash equivalents | 5,663 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | (289)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | (1,427)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and cash equivalents at beginning of year | 1,185 us-gaap_CashAndCashEquivalentsAtCarryingValue | 1,474 us-gaap_CashAndCashEquivalentsAtCarryingValue | 2,901 us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and cash equivalents at end of year | 6,848 us-gaap_CashAndCashEquivalentsAtCarryingValue | 1,185 us-gaap_CashAndCashEquivalentsAtCarryingValue | 1,474 us-gaap_CashAndCashEquivalentsAtCarryingValue
Non-cash investing activities: |  |  |
Purchase of property and equipment on credit | 4 us-gaap_FairValueOfAssetsAcquired | 30 us-gaap_FairValueOfAssetsAcquired | 19 us-gaap_FairValueOfAssetsAcquired
Inventory transferred to be used as property and equipment |  |  | 4 rdcm_TransferOfInventoryToPropertyAndEquipment
Cash paid during the year for: |  |  |
Interest | 13 us-gaap_InterestPaid | 43 us-gaap_InterestPaid | 6 us-gaap_InterestPaid
Taxes on income | $ 180 us-gaap_IncomeTaxesPaid |  | $ 120 us-gaap_IncomeTaxesPaid

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + 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 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash inflow from bank borrowing during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The cash inflow from a borrowing supported by a written promise to pay an obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The cash inflow associated with the sale of investments that are pledged or subject to withdrawal restrictions during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. + References No definition available. + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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