Condensed Consolidated Statements Of Stockholders' Equity - USD ($) $ in Thousands	Total	Related Party	Preferred stock	Common stock	Common stock Related Party	Additional paid-in Capital	Additional paid-in Capital Related Party	Accumulated other comprehensive income (loss)	Accumulated deficit
Balance at Dec. 31, 2022	$ 197,389		$ 0	$ 2		$ 1,160,079		$ (32)	$ (962,660)
Balance (in shares) at Dec. 31, 2022			2,369,797	18,102,523
Increase (Decrease) in Stockholders' Equity
Sale of common shares to related parties and exercise of common stock options, net of transaction costs (in shares)					180,551
Issuance of common shares and sale of warrants in equity offerings, excluding to related parties, net of transaction costs		$ 17,903					$ 17,903
Stock-based compensation expense related to equity-classified awards	11,250					11,250
Unrealized loss on available-for-sale securities	(54)							(54)
Hercules warrant	544					544
Net loss	(76,896)								(76,896)
Balance at Mar. 31, 2023	150,136		$ 0	$ 2		1,189,776		(86)	(1,039,556)
Balance (in shares) at Mar. 31, 2023			2,369,797	18,283,074
Balance at Dec. 31, 2023	$ 405,333			$ 2		1,741,153		468	(1,336,290)
Balance (in shares) at Dec. 31, 2023	20,684,663		2,369,797	19,875,427
Increase (Decrease) in Stockholders' Equity
Sale of common shares to related parties and exercise of common stock options, net of transaction costs (in shares)				750,000	59,236
Issuance of common shares and sale of warrants in equity offerings, excluding to related parties, net of transaction costs	$ 311,560	$ 262,145				311,560	$ 262,145
Stock-based compensation expense related to equity-classified awards	19,902					19,902
Unrealized loss on available-for-sale securities	(640)							(640)
Net loss	(147,541)								(147,541)
Balance at Mar. 31, 2024	$ 850,759		$ 0	$ 2		$ 2,334,760		$ (172)	$ (1,483,831)
Balance (in shares) at Mar. 31, 2024	19,875,427		2,369,797	20,684,663