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v2.4.1.9

Reconciliation Between Effective Tax Rate and U.S. Statutory Rate (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Income Tax Disclosure [Abstract] |  |  |
Income before taxes on income | $ 2,033 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | $ 7,473 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | $ 15,747 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Theoretical tax at U.S. statutory rate | 691 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | 2,541 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | 5,511 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
Foreign income taxes at rates other than U.S. rate | (489)ceva_IncomeTaxReconciliationForeignIncomeTaxRateDifferentialAnother | (1,057)ceva_IncomeTaxReconciliationForeignIncomeTaxRateDifferentialAnother | (2,023)ceva_IncomeTaxReconciliationForeignIncomeTaxRateDifferentialAnother
Approved and benefited enterprises benefits | (785)ceva_IncomeTaxReconciliationReducedExempt | (1,553)ceva_IncomeTaxReconciliationReducedExempt | (1,934)ceva_IncomeTaxReconciliationReducedExempt
Subpart F | 394 ceva_IncomeTaxReconciliationSubpartFIncome | 633 ceva_IncomeTaxReconciliationSubpartFIncome | 529 ceva_IncomeTaxReconciliationSubpartFIncome
Non-deductible items | 723 us-gaap_IncomeTaxReconciliationNondeductibleExpense | 433 us-gaap_IncomeTaxReconciliationNondeductibleExpense | 592 us-gaap_IncomeTaxReconciliationNondeductibleExpense
Non-taxable items | (230)ceva_IncomeTaxReconciliationNonTaxableItems |  |
Decrease in uncertain tax position | (920)ceva_IncomeTaxReconciliationChangesInUncertainTaxPositions | (73)ceva_IncomeTaxReconciliationChangesInUncertainTaxPositions |
Valuation allowance | 3,356 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | (111)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | (380)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Other, net | 112 us-gaap_IncomeTaxReconciliationOtherAdjustments | (25)us-gaap_IncomeTaxReconciliationOtherAdjustments | (233)us-gaap_IncomeTaxReconciliationOtherAdjustments
Taxes on income | $ 2,852 us-gaap_IncomeTaxExpenseBenefit | $ 788 us-gaap_IncomeTaxExpenseBenefit | $ 2,062 us-gaap_IncomeTaxExpenseBenefit
Effective tax rate | 140.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 11.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 13.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 2 -Article 4 + Details
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