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Organization and Description of Business Operations	12 Months Ended
	Dec. 31, 2023
Organization and Description of Business Operations [Abstract]
Organization and Description of Business Operations	1) Organization and Description of Business Operations Eterna Therapeutics Inc. is a life science company committed to realizing the potential of mRNA cell engineering to provide patients with transformational new medicines.  Eterna has in-licensed a portfolio of over 100 patents covering key mRNA cell engineering technologies, including technologies for mRNA cell reprogramming, mRNA gene editing, the NoveSliceTM and UltraSliceTM gene-editing proteins, and the ToRNAdoTM mRNA delivery system, which Eterna collectively refers to as our “mRNA technology platform.” Eterna refers to aspects of its mRNA technology platform as “mRNA delivery,” “mRNA gene editing” and “mRNA cell reprogramming.” Eterna licenses its mRNA technology platform from Factor Bioscience Limited (“Factor Limited”) under an exclusive license agreement. As used herein, the “Company” or “Eterna” refers collectively to Eterna and its consolidated subsidiaries (Eterna LLC, Novellus, Inc. and Novellus Therapeutics Limited) unless otherwise stated or the context otherwise requires.

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The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.

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