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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 1ceva_CommonStockNumberOfVotePerShare                
Preferred stock, shares authorized 5,000,000us-gaap_PreferredStockSharesAuthorized 5,000,000us-gaap_PreferredStockSharesAuthorized              
Preferred stock, par value $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare              
Common stock shares, authorized           1,000,000us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased      
Common stock, additional number of shares authorized to repurchase 4,000,000ceva_ShareRepurchaseProgramAdditionalNumberOfSharesAuthorizedToBeRepurchased                
Purchase of Treasury Stock, shares 1,227,148us-gaap_TreasuryStockSharesAcquired 1,257,004us-gaap_TreasuryStockSharesAcquired 1,482,548us-gaap_TreasuryStockSharesAcquired            
Purchase of Treasury Stock, per share value $ 15.20us-gaap_TreasuryStockAcquiredAverageCostPerShare $ 15.76us-gaap_TreasuryStockAcquiredAverageCostPerShare $ 18.33us-gaap_TreasuryStockAcquiredAverageCostPerShare            
Purchase of Treasury Stock $ 18,657us-gaap_TreasuryStockValueAcquiredCostMethod $ 19,816us-gaap_TreasuryStockValueAcquiredCostMethod $ 27,168us-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 $ 6.1ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsGrantsInPeriodWeightedAverageGrantDateFairValue $ 7.2ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsGrantsInPeriodWeightedAverageGrantDateFairValue $ 7.4ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsGrantsInPeriodWeightedAverageGrantDateFairValue            
Total intrinsic value of options and stock appreciation rights exercised $ 1,372ceva_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAndStockAppreciationRightsExercisesInPeriodTotalIntrinsicValue $ 1,336ceva_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAndStockAppreciationRightsExercisesInPeriodTotalIntrinsicValue $ 581ceva_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             1,750,000us-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 1,350,000us-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 86,970us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_AwardTypeAxis
= ceva_EmployeeStockPurchasePlanEsppMember		             2,150,000us-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         113,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
/ us-gaap_BusinessAcquisitionAxis
= ceva_RivieraWavesMember		        
Number of employees joined the company         27ceva_SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofEmployeesGrantedShares
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
/ us-gaap_BusinessAcquisitionAxis
= ceva_RivieraWavesMember		        
Fair market value on grant date         $ 15.17us-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 872,355us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_AwardTypeAxis
= ceva_StockOptionAndStockAppreciationRightsMember		                
Rule 10b-18                  
Class of Stock [Line Items]                  
Common stock, additional number of shares authorized to repurchase                 1,000,000ceva_ShareRepurchaseProgramAdditionalNumberOfSharesAuthorizedToBeRepurchased
/ us-gaap_ShareRepurchaseProgramAxis
= ceva_RuleTenbHyphenEighteenProgramMember
Common stock, additional number of shares authorized to repurchase 1,000,000ceva_StockRepurchaseProgramAdditionalNumberOfSharesAuthorizedToBeRepurchased
/ us-gaap_ShareRepurchaseProgramAxis
= ceva_RuleTenbHyphenEighteenProgramMember		                
Board of Directors Chairman | 2003 Director Stock Option Plan                  
Class of Stock [Line Items]                  
Option granted       15,000us-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       38,000us-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       13,000us-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       13,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= ceva_TwoThousandThreeStockOptionPlanMember
/ us-gaap_TitleOfIndividualAxis
= ceva_BoardCommitteeChairmanMember