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SIGNIFICANT ACCOUNTING POLICIES (Schedule of Depreciation Rates for Property and Equipment) (Details) | 12 Months Ended
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Dec. 31, 2020
Computers, software and related equipment [Member] |
Property, Plant and Equipment [Line Items] |
Annual depreciation rate | 33.00%
Laboratory equipment and office furniture [Member] |
Property, Plant and Equipment [Line Items] |
Annual depreciation rate | 20.00%
Laboratory equipment and office furniture [Member] | Minimum [Member] |
Property, Plant and Equipment [Line Items] |
Annual depreciation rate | 6.00%
Laboratory equipment and office furniture [Member] | Maximum [Member] |
Property, Plant and Equipment [Line Items] |
Annual depreciation rate | 20.00%
Leasehold improvements [Member] |
Property, Plant and Equipment [Line Items] |
Annual depreciation rate | Shorter of the term of the lease or useful life

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- Definition Annual Depreciation Rate + References No definition available. + Details
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Namespace Prefix: | cgen_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Annual Depreciation Rates, Description. + References No definition available. + Details
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Namespace Prefix: | cgen_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |