Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

No definition available.

Name:	dei_AmendmentFlag
Namespace Prefix:	dei_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

- Definition

PCAOB issued Audit Firm Identifier

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form 10-K
-Number 249
-Section 310

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form 20-F
-Number 249
-Section 220
-Subsection f

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form 40-F
-Number 249
-Section 240
-Subsection f

Cover Page - USD ($)	12 Months Ended
Cover Page - USD ($)	Dec. 31, 2024	Dec. 31, 2023	Mar. 31, 2025	Jun. 30, 2024
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	FY
Entity Registrant Name	Alaunos Therapeutics, Inc.
Entity Central Index Key	0001107421
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Trading Symbol	TCRT
Document Transition Report	false
Document Annual Report	true
Security Exchange Name	NASDAQ
Title of 12(b) Security	Common Stock
Entity File Number	001-33038
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	2617 Bissonnet Street,
Entity Address, Address Line Two	Suite 233
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77005
Entity Tax Identification Number	84-1475642
City Area Code	346
Local Phone Number	355-4099
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Small Business	true
Entity Emerging Growth Company	false
Document Financial Statement Error Correction [Flag]	false
ICFR Auditor Attestation Flag	false
Entity Common Stock, Shares Outstanding			1,601,252
Entity Public Float				$ 10,801,553
Auditor Name	Cherry Bekaert LLP	RSM US LLP
Auditor Location	Tampa, Florida	Boston, Massachusetts
Auditor Firm ID	677	49
Auditor Opinion [Text Block]	Opinion on the Financial Statements We have audited the accompanying balance sheet of Alaunos Therapeutics, Inc. (the “Company”) as of December 31, 2024, and the related statements of operations, stockholders’ equity, and cash flows the year ended December 31, 2024, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2024, and the results of its operations and its cash flows for the year ended December 31, 2024, in conformity with accounting principles generally accepted in the United States of America. The financial statements of the Company as of and for the year ended December 31, 2023, before the retroactive adjustments described in Note 3 with respect to the July 2024 one-for-ten reverse stock split were audited by other auditors whose report, dated April 1, 2024, expressed an unqualified opinion, with an explanatory paragraph expressing substantial doubt regarding the Company’s ability to continue as a going concern, on those statements. We also audited the adjustments described in Note 3 that were applied retroactively to the 2023 financial statements to reflect the July 2024 one-for-ten reverse stock split and the related disclosures included therein. In our opinion, such adjustments and related disclosures are appropriate and have been properly applied. We were not engaged to audit, review, or apply any procedures to the 2023 financial statements of the Company other than with respect to the adjustments and disclosures referred to herein and, accordingly, we do not express an opinion or any other form of assurance on the 2023 financial statements taken as a whole. Opinion on the Financial Statements We have audited, before the effects of the adjustments to retrospectively apply the reverse stock split effective July 17, 2024 described in Note 3, the accompanying balance sheet of Alaunos Therapeutics, Inc. (the Company) as of December 31, 2023, the related statements of operations, changes in stockholders’ equity and cash flows for the year then ended, and the related notes to the financial statements (collectively, the financial statements). The 2023 financial statements before the effects of the adjustments around the July 17, 2024 reverse stock split described in Note 3 are not presented herein. In our opinion, before the effects of the adjustments to retrospectively apply the reverse stock split effective July 17, 2024, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2023, and the results of its operations and its cash flows for the year then ended in conformity with accounting principles generally accepted in the United States of America. We were not engaged to audit, review, or apply any procedures to retrospectively apply the changes in the Company's disclosures related to the reverse stock split effective July 17, 2024 described in Note 3 and, accordingly we do not express an opinion or any other form of assurance about whether such adjustments are appropriate and have been properly applied. Those adjustments were audited by other auditors.
Documents Incorporated by Reference	DOCUMENTS INCORPORATED BY REFERENCE Portions of the Proxy Statement for the Registrant's 2025 Annual Meeting of Stockholders are incorporated by reference into Part III of this Annual Report on Form 10-K.