XML 75 R60.htm IDEA: XBRL DOCUMENT
v3.22.1

Detail of Interest and Other Income (Expense), Net (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Other Income And Expenses [Abstract] |  |
Interest income | $ 39 | $ 561
Miscellaneous income | 9 | 659
Other | (87) | (91)
Total interest and other income (expense), net | $ (39) | $ 1,129

X
- Definition Interest and other income (expense), net. + References No definition available. + Details
Name: | cbio_InterestAndOtherIncomeExpenseNet
Namespace Prefix: | cbio_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Miscellaneous income (expense). + References No definition available. + Details
Name: | cbio_MiscellaneousIncomeExpense
Namespace Prefix: | cbio_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The net amount of nonoperating interest income (expense). + References No definition available. + Details
Name: | us-gaap_InterestIncomeExpenseNonoperatingNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_OtherIncomeAndExpensesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of income (expense) related to nonoperating activities, classified as other. + 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 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
Name: | us-gaap_OtherNonoperatingIncomeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration