Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands		12 Months Ended
	Sep. 02, 2022	Dec. 31, 2023	Dec. 31, 2022
Consolidated Statements of Operations and Comprehensive Loss
Collaboration revenue		$ 14,018
Operating expenses:
In-process research and development		80,802
Research and development		23,089	$ 23,272
General and administrative		19,657	13,629
Total operating expenses		123,548	36,901
Loss from operations		(109,530)	(36,901)
Interest income		2,724	5
Net loss		(106,806)	(36,896)
Deemed dividend arising from warrant modification	$ (600)		(622)
Net loss attributable to common stockholders		$ (106,806)	$ (37,518)
Per share information:
Net loss per common share, Basic		$ (5.38)	$ (3.09)
Net loss per common share, Diluted		$ (5.38)	$ (3.09)
Weighted-average common shares outstanding, Basic		19,843,651	12,126,573
Weighted-average common shares outstanding, Diluted		19,843,651	12,126,573
Comprehensive loss
Net loss		$ (106,806)	$ (37,518)
Unrealized gain on marketable securities		22
Comprehensive loss		$ (106,784)	$ (37,518)