CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 17,122	$ 23,767
Short-term investments	77,338	0
Restricted cash	62	62
Prepaid materials, net	3,183	3,010
Prepaid expenses and other current assets	2,633	1,340
Total current assets	100,338	28,179
Long-term investments	1,469	0
Property and equipment, net	1,083	1,061
Intangibles, net	27	33
Right of use asset	1,181	1,477
Other assets	21	0
Total assets	104,119	30,750
Current liabilities:
Accounts payable	601	204
Accrued liabilities	923	691
Accrued research and development expenses	1,068	921
Accrued compensation	1,870	2,979
Term loan, less debt issuance costs	0	1,334
Other current liabilities	801	2,379
Total current liabilities	5,263	8,508
Lease liability, less current portion	675	1,055
Total liabilities	5,938	9,563
Commitments and Contingencies
Stockholders’ equity:
Common stock, $0.001 par value; 300,000,000 shares authorized at June 30, 2024 and December 31, 2023; 65,465,876 and 20,222,672 shares issued and outstanding at June 30, 2024 (unaudited) and December 31, 2023, respectively	65	20
Additional paid-in capital	630,916	534,375
Accumulated other comprehensive loss	(87)	0
Accumulated deficit	(532,718)	(513,213)
Total stockholders’ equity	98,181	21,187
Total liabilities and stockholders’ equity	104,119	30,750
Class A-1 Convertible Preferred Stock
Stockholders’ equity:
Convertible preferred stock	0	0
Class A-2 Convertible Preferred Stock
Stockholders’ equity:
Convertible preferred stock	1	1
Class A-3 Convertible Preferred Stock
Stockholders’ equity:
Convertible preferred stock	0	0
Class A-4 Convertible Preferred Stock
Stockholders’ equity:
Convertible preferred stock	4	4
Class A-5 Convertible Preferred Stock
Stockholders’ equity:
Convertible preferred stock	0	0
Class A-6 Convertible Preferred Stock
Stockholders’ equity:
Convertible preferred stock	$ 0	$ 0