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GENERAL (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Research and Development Collaboration and Licensing Agreement  
Upfront payment received $ 10,000us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersCompensationEarned
Potential milestone compensation 500,000cgen_ResearchAndDevelopmentArrangementPaymentsReceivable
Preclinical milestone compensation $ 30,000cgen_ResearchAndDevelopmentArrangementPreclinicalPaymentsReceivable