Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating expenses:
Research and development	$ 11,999	$ 25,680
General and administrative	10,728	14,881
Total operating expenses	22,727	40,561
Loss from operations	(22,727)	(40,561)
Other income:
(Loss) gain from foreign exchange	(44)	26
Interest and other income, net	836	1,259
Other income, net	792	1,285
Net loss	$ (21,935)	$ (39,276)
Net loss per share, basic	$ (3.5)	$ (9.76)
Net loss per share, diluted	$ (3.5)	$ (9.76)
Weighted average shares used to compute net loss per share, basic	6,275,856	4,025,489
Weighted average shares used to compute net loss per share, diluted	6,275,856	4,025,489
Net loss	$ (21,935)	$ (39,276)
Unrealized gain on available-for-sale securities	57	168
Comprehensive loss	$ (21,878)	$ (39,108)