CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 131,581	$ 121,718
Marketable securities	10,102	0
Research and development incentive receivable	393	1,152
Prepaid expenses and other current assets	5,796	5,807
Total current assets	147,872	128,677
Property and equipment, net	772	1,104
Goodwill	17,351	17,351
Right-of-use assets	6,054	7,229
Other assets	1,244	1,225
Total assets	173,293	155,586
Current liabilities:
Accounts payable	8,132	7,777
Accrued expenses	16,184	12,034
Current portion of lease liability	1,116	1,198
Current portion of long-term debt	0	1,315
Total current liabilities	25,432	22,324
Long-term debt, net of discount and current portion	54,322	32,304
Lease liabilities	2,848	3,603
Warrant liability (Note 4)	22,014	23,131
Other liabilities	1,083	173
Total liabilities	105,699	81,535
Commitments and contingencies (Note 9)
Stockholders’ equity:
Common stock, $0.001 par value, 500,000,000 shares authorized as of September 30, 2023 and December 31, 2022, respectively; 164,705,712 and 121,667,250 shares issued and outstanding as of September 30, 2023 and December 31, 2022, respectively	165	122
Additional paid-in capital	526,323	450,786
Accumulated other comprehensive loss	(119)	(119)
Accumulated deficit	(458,775)	(376,738)
Total stockholders’ equity	67,594	74,051
Total liabilities and stockholders’ equity	$ 173,293	$ 155,586