Start date of the agreement, in CCYY-MM-DD format.

No definition available.

Name:	cgen_AgreementStartDate
Namespace Prefix:	cgen_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Agreement termination description.

+ References

No definition available.

+ Details

Name:	cgen_AgreementTerminationDescription
Namespace Prefix:	cgen_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Contingent fees.

+ References

No definition available.

+ Details

Name:	cgen_ContingentFees
Namespace Prefix:	cgen_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Extend lease.

+ References

No definition available.

+ Details

Name:	cgen_ExtendLease
Namespace Prefix:	cgen_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Government And Other Grants [Line Items]

+ References

No definition available.

+ Details

Name:	cgen_GovernmentAndOtherGrantsLineItems
Namespace Prefix:	cgen_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum Royalty Repaid As Percentage Of Grant Received

+ References

No definition available.

+ Details

Name:	cgen_MaximumRoyaltyRepaidAsPercentageOfGrantReceived
Namespace Prefix:	cgen_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of the cash consideration received by the Company or its affiliates from third parties to be paid back to advisor.

+ References

No definition available.

+ Details

Name:	cgen_ParticipationRights
Namespace Prefix:	cgen_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of royalties on net sales.

+ References

No definition available.

+ Details

Name:	cgen_PercentageOfRoyaltiesOnNetSales
Namespace Prefix:	cgen_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The contingent obligations for payments based on royalty-bearing participation received or accrued, net of royalties paid or accrued.

+ References

No definition available.

+ Details

Name:	cgen_RoyaltyContingentObligations
Namespace Prefix:	cgen_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Royalty Percentage Based On Future Revenues

+ References

No definition available.

+ Details

Name:	cgen_RoyaltyPercentageBasedOnFutureRevenues
Namespace Prefix:	cgen_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=118943654&loc=d3e12069-110248

+ Details

Name:	us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

+ Details

Name:	us-gaap_RoyaltyExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_PropertyLeaseGuaranteeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=country_IL
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_GainContingenciesByNatureAxis=cgen_GovernmentAndOtherGrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	cgen_GovernmentAndOtherGrantsAxis=cgen_CommercialLicenseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	cgen_GovernmentAndOtherGrantsAxis=cgen_May2012AgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Thousands		6 Months Ended
	Jan. 05, 2018	Jun. 30, 2019	Jun. 30, 2018
Government and Other Grants [Line Items]
Extend the lease		For additional five-year period and exclude a second option to extend the lease of the Company facility for additional five-year period
Contingent fees		$ 500
Office leases [Member] \| Israel [Member]
Government and Other Grants [Line Items]
Bank guarantees in favor of lessor, foreign currency derivative contracts and credit card security		$ 653
Government and Other Grants [Member]
Government and Other Grants [Line Items]
Maximum royalty repaid as percentage of grant received		100.00%
Royalty expense		$ 0	$ 350
Contingent royalty obligations		$ 9,228
Government and Other Grants [Member] \| Minimum [Member]
Government and Other Grants [Line Items]
Royalty percentage based on future revenues		3.00%
Government and Other Grants [Member] \| Maximum [Member]
Government and Other Grants [Line Items]
Royalty percentage based on future revenues		5.00%
Commercial License Agreement [Member]
Government and Other Grants [Line Items]
Percentage of royalties on net sales	1.00%
May 2012 Agreement With Advisor [Member]
Government and Other Grants [Line Items]
Agreement, start date		May 09, 2012
Agreement termination description		In 2014, the May 2012 Agreement was terminated except for certain payments arising from the Bayer Agreement which survive termination until August 5, 2025.
May 2012 Agreement With Advisor [Member] \| Minimum [Member]
Government and Other Grants [Line Items]
Participation Rights		4.00%