XML 110 R82.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Convertible Preferred Stock - Voting (Narrative) (Details) | Dec. 31, 2024
--- | ---
Temporary Equity Disclosure [Abstract] |
Preferred stock, convertible, transaction restrictions, percentage of originally issued stock issued and outstanding | 30.00%

X
- Definition Preferred Stock, Convertible, Transaction Restrictions, Percentage Of Originally Issued Stock Issued And Outstanding + References No definition available. + Details
Name: | rnac_PreferredStockConvertibleTransactionRestrictionsPercentageOfOriginallyIssuedStockIssuedAndOutstanding
Namespace Prefix: | rnac_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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