Condensed Statements of Stockholders' Deficit - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning balance (in shares) at Dec. 31, 2022		74,570,198
Beginning balance at Dec. 31, 2022	$ (323,778)	$ 75	$ 1,071,183	$ (1,340,036)	$ (2)	$ (54,998)
Increase (Decrease) in Stockholders' Equity
Vesting of restricted stock units and performance-based restricted stock units (in shares)		372,117
Vesting of ESPP Shares (in shares)		95,654
Stock-based compensation	502		502
Issuance of common stock from offering, net of issuance costs	2,903		2,903
Issuance of common stock, warrants, and pre-funded warrants, net of issuance costs (in shares)		12,205,000
Exercise of warrants	52,428	$ 12	52,416
Other comprehensive gain (loss)	1				1
Net income (loss)	(61,719)			(61,719)
Ending balance (in shares) at Mar. 31, 2023		87,242,969
Ending balance at Mar. 31, 2023	(329,663)	$ 87	1,127,004	(1,401,755)	(1)	(54,998)
Beginning balance (in shares) at Dec. 31, 2023		118,210,315
Beginning balance at Dec. 31, 2023	(454,994)	$ 118	1,149,170	(1,549,284)	0	(54,998)
Increase (Decrease) in Stockholders' Equity
Vesting of restricted stock units and performance-based restricted stock units (in shares)		439,783
Vesting of restricted stock units	1	$ 1
Issuance of common stock from offering, net of issuance costs	3,235		3,235
Issuance of common stock, warrants, and pre-funded warrants, net of issuance costs (in shares)		65,205,000
Exercise of warrants	90,672	$ 65	90,607
Exercise of warrants (in shares)		4,000,000
Exercise of warrants	5,766	$ 4	5,762
Net income (loss)	61,022			61,022
Ending balance (in shares) at Mar. 31, 2024		187,855,098
Ending balance at Mar. 31, 2024	$ (294,298)	$ 188	$ 1,248,774	$ (1,488,262)	$ 0	$ (54,998)