XML 57 R47.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Stockholders' Equity - Warrants (Details) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Number of Warrants |  |  |
Balance of warrants outstanding at the beginning of the period (in shares) | 2,807,948 | 4,360,968 |
Expired (in shares) | (595) | (1,553,020) |
Balance of warrants outstanding at the end of the period (in shares) | 2,807,353 | 2,807,948 | 4,360,968
Weighted Average Exercise Price Per Share |  |  |
Weighted average exercise price of warrants at the beginning of the period (in USD per share) | $ 2.45 | $ 5.33 |
Expired (in USD per share) | 252.72 | 10.54 |
Weighted average exercise price of warrants at the end of the period (in USD per share) | $ 2.4 | $ 2.45 | $ 5.33
Term |  |  |
Weighted-Average Remaining Contractual Term | 10 months 24 days | 1 year 10 months 24 days | 2 years 1 month 6 days

X
- Definition Class Of Warrant Or Right, Expired During Period + References No definition available. + Details
Name: | crdf_ClassOfWarrantOrRightExpiredDuringPeriod
Namespace Prefix: | crdf_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The period over which each class of warrants or rights outstanding may be exercised. + References No definition available. + Details
Name: | crdf_ClassOfWarrantOrRightTermOfOutstandingWarrantsOrRights
Namespace Prefix: | crdf_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Class Of Warrant Or Right, Weighted Average Exercise Price, Expired During Period + References No definition available. + Details
Name: | crdf_ClassOfWarrantOrRightWeightedAverageExercisePriceExpiredDuringPeriod
Namespace Prefix: | crdf_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the weighted average exercise price of each class of warrants or rights outstanding. + References No definition available. + Details
Name: | crdf_ClassOfWarrantOrRightWeightedAverageExercisePriceOfWarrantsOrRights
Namespace Prefix: | crdf_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition No definition available + References No definition available. + Details
Name: | crdf_ClassOfWarrantOrRightWeightedAverageExercisePriceOfWarrantsOrRightsAbstract
Namespace Prefix: | crdf_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Number of warrants or rights outstanding. + References No definition available. + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant