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Composition of Assets, Grouped by Major Classifications (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 13,943us-gaap_PropertyPlantAndEquipmentGross $ 11,712us-gaap_PropertyPlantAndEquipmentGross
Less-Accumulated depreciation (11,338)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (10,096)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Property and equipment, net 2,605us-gaap_PropertyPlantAndEquipmentNet 1,616us-gaap_PropertyPlantAndEquipmentNet
Computers, software and equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 12,180us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= ceva_ComputerSoftwareAndEquipmentMember		 10,329us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= ceva_ComputerSoftwareAndEquipmentMember
Office furniture and equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 633us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= ceva_OfficeFurnitureAndEquipmentMember		 513us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= ceva_OfficeFurnitureAndEquipmentMember
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 1,130us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember		 $ 870us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember