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Annual Depreciation Rates of Property, Plant and Equipment (Detail)
 12 Months Ended
Dec. 31, 2014
Computers, software and equipment | Minimum  
Property, Plant and Equipment [Line Items]  
Annual depreciation rate 10.00%ceva_AnnualDepreciationRate
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= ceva_ComputerSoftwareAndEquipmentMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Computers, software and equipment | Maximum  
Property, Plant and Equipment [Line Items]  
Annual depreciation rate 33.00%ceva_AnnualDepreciationRate
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= ceva_ComputerSoftwareAndEquipmentMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Office furniture and equipment | Minimum  
Property, Plant and Equipment [Line Items]  
Annual depreciation rate 7.00%ceva_AnnualDepreciationRate
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= ceva_OfficeFurnitureAndEquipmentMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Office furniture and equipment | Maximum  
Property, Plant and Equipment [Line Items]  
Annual depreciation rate 25.00%ceva_AnnualDepreciationRate
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= ceva_OfficeFurnitureAndEquipmentMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Leasehold improvements  
Property, Plant and Equipment [Line Items]  
Annual depreciation rate 10.00%ceva_AnnualDepreciationRate
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
Annual depreciation rate (the shorter of the expected lease term or useful economic life)