Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenues	$ 16,146
Costs and operating expenses:
Cost of revenues	475
Research and development	13,029	$ 11,901
General and administrative	8,247	9,053
Total costs and operating expenses	21,751	20,954
Loss from operations	(5,605)	(20,954)
Other income, net:
Interest and investment income	1,550	1,673
Sublease income	799	38
Total other income, net	2,349	1,711
Net loss	$ (3,256)	$ (19,243)
Net loss per common share - basic	$ (0.06)	$ (0.54)
Net loss per common share - diluted	$ (0.06)	$ (0.54)
Weighted average shares of common stock outstanding - basic	51,289,284	35,351,671
Weighted average shares of common stock outstanding - diluted	51,289,284	35,351,671
Other comprehensive (loss) income:
Net unrealized (loss) gain on marketable debt securities	$ (123)	$ 696
Other comprehensive (loss) income	(123)	696
Comprehensive loss	(3,379)	$ (18,547)
Royalty Revenues
Revenues	8,146
Sale of Royalty Rights
Revenues	$ 8,000