Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 175,530	$ 20,525
Short-term investments	71,000	205,912
Prepaid expenses and other current assets	4,412	1,253
Total current assets	250,942	227,690
Right-of-use asset	363	948
Other assets	3,361	1,995
Total assets	254,666	230,633
Current liabilities:
Accounts payable	1,513	788
Accrued expenses	9,708	7,690
Current portion of operating lease liabilities	329	582
Total current liabilities	11,550	9,060
Long term portion of operating lease liabilities		357
Total liabilities	11,550	9,417
Commitments (Note 6)
Stockholders' equity:
Common stock, $0.001 par value per share, 150,000,000 shares authorized; 41,034,797 and 27,501,340 shares issued and outstanding at December 31, 2023 and December 31, 2022, respectively	41	28
Additional paid-in capital	728,285	632,512
Accumulated other comprehensive loss		(79)
Accumulated deficit	(580,534)	(507,643)
Total stockholders' equity	243,116	221,216
Total liabilities and stockholders' equity	254,666	230,633
Preferred stock
Stockholders' equity:
Preferred stock
Series X redeemable convertible preferred stock
Stockholders' equity:
Preferred stock	$ 95,324	$ 96,398