XML 43 R32.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Commitments and Contingencies (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2018
Commitments And Contingencies Disclosure [Abstract] |
Future Minimum Lease Commitments under Operating and Capital Leases | Future minimum lease commitments under these operating and capital leases on March 31, 2018, are as follows (in thousands):
Years Ending December 31, |  | Capital Leases |  |  | Operating Leases |
Remainder of 2018 |  | $ | 74 |  |  | $ | 1,657 |
2019 |  |  | 84 |  |  |  | 2,135 |
2020 |  |  | 79 |  |  |  | 2,090 |
2021 |  |  | 7 |  |  |  | 11 |
2022 |  |  | — |  |  |  | 8 |
Total future minimum lease payments |  | $ | 244 |  |  | $ | 5,901 |

X
- Definition Schedule Of Future Minimum Commitments For Capital And Operating Leases Table [Text Block] + References No definition available. + Details
Name: | cdna_ScheduleOfFutureMinimumCommitmentsForCapitalAndOperatingLeasesTableTextBlock
Namespace Prefix: | cdna_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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