Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 13,888	$ 28,920
Short-term investments	9,703	0
Accounts receivable	788	170
Prepaid expenses	721	722
Other current assets	13	311
Total current assets	25,113	30,123
Property and equipment, net	3,351	2,996
Operating lease right-of-use asset	667	869
Other assets	30	30
Total assets	29,161	34,018
Current liabilities:
Accounts payable (includes $232 and $331 to a related party as of September 30, 2024 and December 31, 2023, respectively)	2,361	2,205
Accrued liabilities (includes $304 and $215 to a related party as of September 30, 2024 and December 31, 2023, respectively)	2,859	4,169
Current portion of operating lease liabilities	373	364
Deferred revenue	0	75
Total current liabilities	5,593	6,813
Liability related to the sales of future royalties, net	49,188	41,988
Warrant liabilities	8,757	0
Operating lease liabilities	412	649
Other non-current liabilities	0	480
Total liabilities	63,950	49,930
Commitments and contingencies
Stockholders' (deficit) equity:
Preferred stock, $0.001 par value; 10,000,000 shares authorized and no shares issued at September 30, 2024 and December 31, 2023	0	0
Common stock, $0.001 par value; 200,000,000 shares authorized a September 30, 2024 and December 31, 2023; 74,745,572 and 62,850,841 shares issued and outstanding at September 30, 2024 and December 31, 2023, respectively	75	63
Additional paid-in capital	313,100	304,948
Accumulated deficit	(347,969)	(320,923)
Accumulated other comprehensive gain	5	0
Total stockholders deficit	(34,789)	(15,912)
Total liabilities and stockholders (deficit) equity	$ 29,161	$ 34,018