Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 34,050	$ 45,814
Short-term investments (See Note 3)	40,312	27,689
Prepaid expenses and other current assets (See Note 4)	5,548	2,503
License agreement receivable	2,463	0
License agreement contract asset	19,363	0
Accounts receivable, net	0	2,101
Inventory, net	0	899
Restricted cash	380	55
Total current assets	102,116	79,061
Investments (See Note 3)	23,594	0
Other assets	0	5,511
Deferred offering costs	175	73
Restricted cash	163	163
Intangible assets, net	0	408
Operating lease right-of-use asset (Note 9)	2,364	2,594
Total assets	128,412	87,810
Current liabilities:
Accounts payable	7,149	5,937
Accrued expenses (See Note 7)	7,495	5,628
Deferred revenue, current portion	1,189	0
Other liabilities, current portion (See Note 8)	0	5,771
Operating lease liability, current portion (Note 9)	340	282
Warrant liabilities	130	0
Total current liabilities	16,303	17,618
Deferred revenue	2,727	0
Warrant liabilities	21,680	18,644
Convertible debt and derivative liability (Note 8)	12,159	11,001
Loan payable (Note 8)	0	34,393
Operating lease liability (Note 9)	2,581	2,921
Total liabilities	55,450	84,577
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value, authorized 5,000,000 shares as of December 31, 2023 and December 31, 2022; 0 shares issued and outstanding as of December 31, 2023 and December 31, 2022	0	0
Common stock, $0.001 par value, 150,000,000 shares authorized as of December 31, 2023 and 2022; 37,207,799 and 32,682,342 shares issued and outstanding as of December 31, 2023, and December 31, 2022, respectively	40	36
Additional paid-in capital	428,169	425,485
Accumulated deficit	(355,247)	(422,288)
Total stockholders’ equity	72,962	3,233
Total liabilities and stockholders’ equity	$ 128,412	$ 87,810