XML 17 R6.htm IDEA: XBRL DOCUMENT
v3.20.2

CONDENSED STATEMENT OF STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) | 3 Months Ended
--- | ---
Jun. 30, 2020 | Mar. 31, 2019
Statement of Stockholders' Equity [Abstract] |  |
Cost of issuance of common stock, preferred stock and warrants | $ 616,143 | $ 40,000
Warrants, fair value | $ 370,666 |
Discount of issuance of common stock, preferred stock and warrants for clinical trial funding commitment |  | $ 235,640

X
- Definition Cost of Issuance of Common Stock, Preferred Stock and Warrants for Clinical Trial Funding Commitment + References No definition available. + Details
Name: | crdf_CostofIssuanceofCommonStockPreferredStockandWarrantsforClinicalTrialFundingCommitment
Namespace Prefix: | crdf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Discount of Issuance of Common Stock, Preferred Stock and Warrants for Clinical Trial Funding Commitment + References No definition available. + Details
Name: | crdf_DiscountofIssuanceofCommonStockPreferredStockandWarrantsforClinicalTrialFundingCommitment
Namespace Prefix: | crdf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Warrants, Fair Value + References No definition available. + Details
Name: | crdf_WarrantsFairValue
Namespace Prefix: | crdf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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