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Schedule of Options Granted, Classified into Range of Exercise Price (Detail) (USD $) | 12 Months Ended |
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Dec. 31, 2014 | Dec. 31, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |  |
Outstanding, Number of options | 3,316,380 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingNumber | [1] | 3,115,972 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingNumber
Outstanding, Weighted average remaining contractual life (years) | 4 years 6 months |  |
Outstanding, Weighted average exercise price | $ 16.50 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingWeightedAverageExercisePrice |  |
Exercisable, Number of options | 2,031,630 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsExercisableNumber | [2] |
Exercisable, Weighted average remaining contractual life (years) | 3 years 3 months 18 days |  |
Exercisable, Weighted average exercise price | $ 16.51 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsExercisableWeightedAverageExercisePrice | [2] |
5.76-9.80 |  |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |  |
Range of exercise price, Lower limit | $ 5.76 ceva_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndStockAppreciationRightPlansExercisePriceRangeLowerRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeOneMember |  |
Range of exercise price, Upper limit | $ 9.80 ceva_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndStockAppreciationRightPlansExercisePriceRangeUpperRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeOneMember |  |
Outstanding, Number of options | 599,076 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingNumber / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeOneMember |  |
Outstanding, Weighted average remaining contractual life (years) | 10 months 24 days |  |
Outstanding, Weighted average exercise price | $ 8.37 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingWeightedAverageExercisePrice / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeOneMember |  |
Exercisable, Number of options | 599,076 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsExercisableNumber / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeOneMember |  |
Exercisable, Weighted average remaining contractual life (years) | 10 months 24 days |  |
Exercisable, Weighted average exercise price | $ 8.37 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsExercisableWeightedAverageExercisePrice / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeOneMember |  |
11.58-15.54 |  |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |  |
Range of exercise price, Lower limit | $ 11.58 ceva_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndStockAppreciationRightPlansExercisePriceRangeLowerRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeTwoMember |  |
Range of exercise price, Upper limit | $ 15.54 ceva_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndStockAppreciationRightPlansExercisePriceRangeUpperRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeTwoMember |  |
Outstanding, Number of options | 1,074,858 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingNumber / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeTwoMember |  |
Outstanding, Weighted average remaining contractual life (years) | 5 years 4 months 24 days |  |
Outstanding, Weighted average exercise price | $ 14.76 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingWeightedAverageExercisePrice / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeTwoMember |  |
Exercisable, Number of options | 461,119 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsExercisableNumber / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeTwoMember |  |
Exercisable, Weighted average remaining contractual life (years) | 3 years 10 months 24 days |  |
Exercisable, Weighted average exercise price | $ 14.51 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsExercisableWeightedAverageExercisePrice / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeTwoMember |  |
16.08-17.61 |  |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |  |
Range of exercise price, Lower limit | $ 16.08 ceva_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndStockAppreciationRightPlansExercisePriceRangeLowerRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeThreeMember |  |
Range of exercise price, Upper limit | $ 17.61 ceva_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndStockAppreciationRightPlansExercisePriceRangeUpperRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeThreeMember |  |
Outstanding, Number of options | 837,156 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingNumber / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeThreeMember |  |
Outstanding, Weighted average remaining contractual life (years) | 5 years 9 months 18 days |  |
Outstanding, Weighted average exercise price | $ 16.48 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingWeightedAverageExercisePrice / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeThreeMember |  |
Exercisable, Number of options | 318,821 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsExercisableNumber / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeThreeMember |  |
Exercisable, Weighted average remaining contractual life (years) | 5 years 9 months 18 days |  |
Exercisable, Weighted average exercise price | $ 16.50 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsExercisableWeightedAverageExercisePrice / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeThreeMember |  |
18.23-32.34 |  |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |  |
Range of exercise price, Lower limit | $ 18.23 ceva_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndStockAppreciationRightPlansExercisePriceRangeLowerRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeFourMember |  |
Range of exercise price, Upper limit | $ 32.34 ceva_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndStockAppreciationRightPlansExercisePriceRangeUpperRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeFourMember |  |
Outstanding, Number of options | 805,290 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingNumber / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeFourMember |  |
Outstanding, Weighted average remaining contractual life (years) | 4 years 6 months |  |
Outstanding, Weighted average exercise price | $ 24.89 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingWeightedAverageExercisePrice / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeFourMember |  |
Exercisable, Number of options | 652,614 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsExercisableNumber / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeFourMember |  |
Exercisable, Weighted average remaining contractual life (years) | 3 years 10 months 24 days |  |
Exercisable, Weighted average exercise price | $ 25.39 ceva_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsExercisableWeightedAverageExercisePrice / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = ceva_ExercisePriceRangeFourMember |  |
[1] | Due to the ceiling imposed on the SAR grants, the outstanding amount equals a maximum of 2,946,669 shares of the Company's common stock issuable upon exercise.
[2] | Due to the ceiling imposed on the SAR grants, the exercisable amount equals a maximum of 1,894,343 shares of the Company's common stock issuable upon exercise.

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