XML 59 R45.htm IDEA: XBRL DOCUMENT
v3.23.1

Subsequent Events - Additional Information (Detail) |  | 3 Months Ended
--- | --- | ---
Apr. 18, 2023 USD ($) Agreement | Mar. 31, 2023 USD ($)
Subsequent Event [Line Items] |  |
Expenses incurred under cost sharing agreement |  | $ 0
Subsequent Event [Member] |  |
Subsequent Event [Line Items] |  |
Number of separate agreements | Agreement | 2 |
Non GMP Manufacturing Services [Member] | Subsequent Event [Member] |  |
Subsequent Event [Line Items] |  |
Cost of services as per agreement | $ 300,000 |
Clinical Supply Batch GMP Manufacturing [Member] | Subsequent Event [Member] |  |
Subsequent Event [Line Items] |  |
Cost of services as per agreement | $ 200,000 |

X
- Definition Cost of services as per agreement. + References No definition available. + Details
Name: | cbio_CostOfServicesAsPerAgreement
Namespace Prefix: | cbio_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Expenses incurred under cost sharing agreement. + References No definition available. + Details
Name: | cbio_ExpensesIncurredUnderCostSharingAgreement
Namespace Prefix: | cbio_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of separate agreements. + References No definition available. + Details
Name: | cbio_NumberOfSeparateAgreements
Namespace Prefix: | cbio_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- 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

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

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=cbio_NonGMPManufacturingServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=cbio_ClinicalSupplyBatchGMPManufacturingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |