CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Costs and expenses:
Research and development expenses	$ 3,086	$ 4,049	$ 6,322	$ 7,648
General and administrative expenses	4,371	2,562	8,756	5,761
Total expenses	7,457	6,611	15,078	13,409
Loss from operations	(7,457)	(6,611)	(15,078)	(13,409)
Other income (expense):
Interest expense (including related party amounts of $338, $33, $1,036 and $91 for the three months ended June 30, 2024 and 2023 and the six months ended June 30, 2024 and 2023, respectively)	(647)	(62)	(1,716)	(96)
Loss on issuance of financial instruments (including related party amounts of $565, zero, $639 and zero for the three months ended June 30, 2024 and 2023 and the six months ended June 30, 2024 and 2023, respectively)	(13,157)	0	(13,886)	0
Loss on amendments to financial instruments, net	(5,222)	0	(4,939)	0
Change in fair value of financial instruments (including related party amounts of $61, zero, $152 and zero for the three months ended June 30, 2024 and 2023 and the six months ended June 30, 2024 and 2023, respectively)	10,395	(1,283)	14,155	(2,784)
Other income (loss), net	0	107	(6)	118
Net loss before provision for income taxes	(16,088)	(7,849)	(21,470)	(16,171)
Provision for income taxes	0	0	0	0
Net loss	(16,088)	(7,849)	(21,470)	(16,171)
Comprehensive loss	$ (16,088)	$ (7,849)	$ (21,470)	$ (16,171)
Earnings Per Share [Abstract]
Weighted-average common shares outstanding, basic (in shares)	24,168,733	13,316,277	23,061,985	13,315,268
Weighted-average common shares outstanding, diluted (in shares)	24,168,733	13,316,277	23,061,985	13,315,268
Net loss per share, basic (in usd per share)	$ (0.67)	$ (0.59)	$ (0.93)	$ (1.21)
Net loss per share, diluted (in usd per share)	$ (0.67)	$ (0.59)	$ (0.93)	$ (1.21)