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Reconciliation Between Effective Tax Rate and U.S. Statutory Rate (Parenthetical) (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Basic and diluted earnings per share amounts of the benefit resulting from the "Approved Enterprise" and "Benefited Enterprise" status	$ 0.04ceva_IncomeLossFromExtraordinaryItemsTaxEffectPerBasicAndDilutedShare	$ 0.07ceva_IncomeLossFromExtraordinaryItemsTaxEffectPerBasicAndDilutedShare	$ 0.08ceva_IncomeLossFromExtraordinaryItemsTaxEffectPerBasicAndDilutedShare

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- Definition

Income Loss From Extraordinary Items Tax Effect Per Basic And Diluted Share

+ References

No definition available.

+ Details

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Namespace Prefix:	ceva_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

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- Details

Name:	us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration