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Related Party Transactions - Additional Information (Detail) (Morrison and Forester LLP, USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Morrison and Forester LLP
      
Related Party Transaction [Line Items]      
Payable to related party $ 10us-gaap_DueToRelatedPartiesCurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ceva_LegalCounselMember		 $ 0us-gaap_DueToRelatedPartiesCurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ceva_LegalCounselMember		  
Fees paid to related party $ 275us-gaap_RelatedPartyTransactionAmountsOfTransaction
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ceva_LegalCounselMember		 $ 279us-gaap_RelatedPartyTransactionAmountsOfTransaction
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ceva_LegalCounselMember		 $ 578us-gaap_RelatedPartyTransactionAmountsOfTransaction
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ceva_LegalCounselMember