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Stockholders' Equity - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended | 0 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2014 Vote | Dec. 31, 2013 | Dec. 31, 2012 | Jun. 30, 2004 | Jul. 07, 2014 | Aug. 31, 2008 | May 17, 2011 | Jul. 31, 2002 | Oct. 31, 2014
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of vote per share entitled by holders of common stock | 1 ceva_CommonStockNumberOfVotePerShare |  |  |  |  |  |  |  |
Preferred stock, shares authorized | 5,000,000 us-gaap_PreferredStockSharesAuthorized | 5,000,000 us-gaap_PreferredStockSharesAuthorized |  |  |  |  |  |  |
Preferred stock, par value | $ 0.001 us-gaap_PreferredStockParOrStatedValuePerShare | $ 0.001 us-gaap_PreferredStockParOrStatedValuePerShare |  |  |  |  |  |  |
Common stock shares, authorized |  |  |  |  |  | 1,000,000 us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased |  |  |
Common stock, additional number of shares authorized to repurchase | 4,000,000 ceva_ShareRepurchaseProgramAdditionalNumberOfSharesAuthorizedToBeRepurchased |  |  |  |  |  |  |  |
Purchase of Treasury Stock, shares | 1,227,148 us-gaap_TreasuryStockSharesAcquired | 1,257,004 us-gaap_TreasuryStockSharesAcquired | 1,482,548 us-gaap_TreasuryStockSharesAcquired |  |  |  |  |  |
Purchase of Treasury Stock, per share value | $ 15.20 us-gaap_TreasuryStockAcquiredAverageCostPerShare | $ 15.76 us-gaap_TreasuryStockAcquiredAverageCostPerShare | $ 18.33 us-gaap_TreasuryStockAcquiredAverageCostPerShare |  |  |  |  |  |
Purchase of Treasury Stock | $ 18,657 us-gaap_TreasuryStockValueAcquiredCostMethod | $ 19,816 us-gaap_TreasuryStockValueAcquiredCostMethod | $ 27,168 us-gaap_TreasuryStockValueAcquiredCostMethod |  |  |  |  |  |
Options and stock appreciation rights granted under stock incentive plans vesting rate, year one | 25.00%ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestingPercentageYearOne |  |  |  |  |  |  |  |
Remaining shares vesting period | 36 months |  |  |  |  |  |  |  |
Weighted average fair value of options and stock appreciation rights granted | $ 6.1 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsGrantsInPeriodWeightedAverageGrantDateFairValue | $ 7.2 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsGrantsInPeriodWeightedAverageGrantDateFairValue | $ 7.4 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsGrantsInPeriodWeightedAverageGrantDateFairValue |  |  |  |  |  |
Total intrinsic value of options and stock appreciation rights exercised | $ 1,372 ceva_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAndStockAppreciationRightsExercisesInPeriodTotalIntrinsicValue | $ 1,336 ceva_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAndStockAppreciationRightsExercisesInPeriodTotalIntrinsicValue | $ 581 ceva_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAndStockAppreciationRightsExercisesInPeriodTotalIntrinsicValue |  |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Award vesting period | 4 years |  |  |  |  |  |  |  |
2011 Stock Incentive Plan |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of common shares authorized for issuance |  |  |  |  |  |  | 1,750,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_AwardTypeAxis = ceva_TwoThousandElevenStockIncentivePlanMember |  |
Share incentive plan expiration | 2021-02 |  |  |  |  |  |  |  |
2003 Director Stock Option Plan |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of common shares authorized for issuance | 1,350,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_AwardTypeAxis = ceva_TwoThousandThreeStockOptionPlanMember |  |  |  |  |  |  |  |
2003 Director Stock Option Plan | Maximum |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Award expiration period | 10 years |  |  |  |  |  |  |  |
2003 Director Stock Option Plan | Minimum |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Requisite period of service to get option granted |  |  |  | 6 months |  |  |  |  |
2002 Employee Stock Purchase Plan ESPP |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of options available for grant under stock plan | 86,970 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = ceva_EmployeeStockPurchasePlanEsppMember |  |  |  |  |  |  | 2,150,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = ceva_EmployeeStockPurchasePlanEsppMember |
Minimum working hours for eligibility of employee stock purchase plan | 20 hours |  |  |  |  |  |  |  |
Minimum working days for employee stock purchase plan | 5 months |  |  |  |  |  |  |  |
Stock Appreciation Rights (SARs) | Maximum |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Options granted percentage | 400.00%ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfAwardsGranted / us-gaap_AwardTypeAxis = us-gaap_StockAppreciationRightsSARSMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 400.00%ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfAwardsGranted / us-gaap_AwardTypeAxis = us-gaap_StockAppreciationRightsSARSMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |  |  |  |
Stock Appreciation Rights (SARs) | RivieraWaves |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Award vesting period |  |  |  |  | 4 years |  |  |  |
Remaining shares vesting period |  |  |  |  | 36 months |  |  |  |
Aggregate number of stock issued by the company |  |  |  |  | 113,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockAppreciationRightsSARSMember / us-gaap_BusinessAcquisitionAxis = ceva_RivieraWavesMember |  |  |  |
Number of employees joined the company |  |  |  |  | 27 ceva_SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofEmployeesGrantedShares / us-gaap_AwardTypeAxis = us-gaap_StockAppreciationRightsSARSMember / us-gaap_BusinessAcquisitionAxis = ceva_RivieraWavesMember |  |  |  |
Fair market value on grant date |  |  |  |  | $ 15.17 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_StockAppreciationRightsSARSMember / us-gaap_BusinessAcquisitionAxis = ceva_RivieraWavesMember |  |  |  |
Award vesting description | All of the SARs were priced at $15.17, the fair market value on the grant date, and will vest over four years, with 25% of the SARs vesting after one year and the remaining vest in equal portions over the following 36 months, such that all SARs will vest after four years, subject to the employee's continuous service through each vesting date. |  |  |  |  |  |  |  |
Description of award term | The SARs have a ceiling limit for maximum income capped at 400%, expire seven years from the grant date and are subject to the terms and condition of the individual SAR agreements. |  |  |  |  |  |  |  |
Award expiration period |  |  |  |  | 7 years |  |  |  |
Stock Appreciation Rights (SARs) | RivieraWaves | Vesting Period One |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Vesting percentage |  |  |  |  | 25.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage / us-gaap_AwardTypeAxis = us-gaap_StockAppreciationRightsSARSMember / us-gaap_BusinessAcquisitionAxis = ceva_RivieraWavesMember / ceva_VestingPeriodAxis = ceva_VestingPeriodOneMember |  |  |  |
Stock Option And Stock Appreciation Rights |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of options available for grant under stock plan | 872,355 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = ceva_StockOptionAndStockAppreciationRightsMember |  |  |  |  |  |  |  |
Rule 10b-18 |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Common stock, additional number of shares authorized to repurchase |  |  |  |  |  |  |  |  | 1,000,000 ceva_ShareRepurchaseProgramAdditionalNumberOfSharesAuthorizedToBeRepurchased / us-gaap_ShareRepurchaseProgramAxis = ceva_RuleTenbHyphenEighteenProgramMember
Common stock, additional number of shares authorized to repurchase | 1,000,000 ceva_StockRepurchaseProgramAdditionalNumberOfSharesAuthorizedToBeRepurchased / us-gaap_ShareRepurchaseProgramAxis = ceva_RuleTenbHyphenEighteenProgramMember |  |  |  |  |  |  |  |
Board of Directors Chairman | 2003 Director Stock Option Plan |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Option granted |  |  |  | 15,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = ceva_TwoThousandThreeStockOptionPlanMember / us-gaap_TitleOfIndividualAxis = us-gaap_BoardOfDirectorsChairmanMember |  |  |  |  |
Non Employee Director |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Options granted under stock incentive plan vesting rate, each anniversary | 25.00%ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAnnualVestingPercentage / us-gaap_TitleOfIndividualAxis = ceva_NonEmployeeDirectorMember |  |  |  |  |  |  |  |
Non Employee Director | 2003 Director Stock Option Plan |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Option granted |  |  |  | 38,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = ceva_TwoThousandThreeStockOptionPlanMember / us-gaap_TitleOfIndividualAxis = ceva_NonEmployeeDirectorMember |  |  |  |  |
Board of Directors | 2003 Director Stock Option Plan |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Option granted |  |  |  | 13,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = ceva_TwoThousandThreeStockOptionPlanMember / us-gaap_TitleOfIndividualAxis = ceva_BoardOfDirectorsMember |  |  |  |  |
Committee Chairperson | 2003 Director Stock Option Plan |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Option granted |  |  |  | 13,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = ceva_TwoThousandThreeStockOptionPlanMember / us-gaap_TitleOfIndividualAxis = ceva_BoardCommitteeChairmanMember |  |  |  |  |

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- Definition Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date. + 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 + Details
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- Definition Percentage of vesting of share-based compensation awards. + 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 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Period from grant date that an equity-based award expires, 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- 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 + Details
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- 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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- Definition Net number of share options (or share units) granted during the period. + 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 (c)(1)(iv)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements. + 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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