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v3.22.1

SUBSEQUENT EVENTS (Details) $ in Millions | Apr. 20, 2022 USD ($)
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Subsequent Event | Mundipharma Medical Company | Milestone Achievement | Affiliated Entity |
Subsequent Event [Line Items] |
Collaborative arrangement, potential prepayment receivable | $ 11.1

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- Definition Collaborative Arrangement, Potential Prepayment Milestone + References No definition available. + Details
Name: | cdtx_CollaborativeArrangementPotentialPrepaymentMilestone
Namespace Prefix: | cdtx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_CounterpartyNameAxis=cdtx_MundipharmaMedicalCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_ProductOrServiceAxis=cdtx_MilestoneAchievementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_AffiliatedEntityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |