v3.23.1
Warrants - Additional Information (Detail) - shares
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Warrants and Rights Note Disclosure [Abstract]
Number of warrants exercised (in shares)
0
0
X
- Definition
Number of Warrants Exercised
+ References
No definition available.
+ Details
Name:
cdna_NumberOfWarrantsExercised
Namespace Prefix:
cdna_
Data Type:
xbrli:sharesItemType
Balance Type:
na
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
us-gaap_WarrantsAndRightsNoteDisclosureAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration