Common Stock - Schedule of Common Stock Reserved For Future Issuance (Details) - shares	Dec. 31, 2025	Dec. 31, 2024
Class of Stock [Line Items]
Common stock reserved for future issuance	16,909,516	17,666,380
Warrants
Class of Stock [Line Items]
Common stock reserved for future issuance	7,762,350	7,507,708
Pre-funded Warrants
Class of Stock [Line Items]
Common stock reserved for future issuance	0	3,333,333
Stock Options Outstanding
Class of Stock [Line Items]
Common stock reserved for future issuance	6,246,920	4,486,181
Unvested Restricted Stock
Class of Stock [Line Items]
Common stock reserved for future issuance	0	330,779
Shares Available for Future Grant Under Stock Option Plan
Class of Stock [Line Items]
Common stock reserved for future issuance	2,900,246	2,008,379

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

Candel Therapeutics, Inc. 10-K