Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 155,073	$ 58,846
Restricted cash	0	1,061
Short-term investments	91,860	159,461
Prepaid expenses and other current assets	4,766	4,545
Total current assets	251,699	223,913
Right-of-use assets - operating leases	3,072	3,247
Property and equipment, net	12,131	11,517
Other Assets Noncurrent	2,124	0
Total assets	269,026	238,677
Current liabilities:
Accounts payable	1,547	2,892
Accrued and other current liabilities	11,298	8,759
Current portion of operating lease liabilities	2,169	2,137
Total current liabilities	15,014	13,788
Operating lease liabilities, net of current portion	6,272	6,658
Other noncurrent liabilities	18	69
Total liabilities	21,304	20,515
Commitments and contingencies (Note 2)
Stockholders' equity
Common stock, $0.0001 par value; 500,000,000 shares authorized at June 30, 2023 and December 31, 2022; 49,937,580 and 41,177,706 shares issued as of June 30, 2023 and December 31, 2022, respectively; 49,916,220 and 41,095,564 shares outstanding as of June 30, 2023 and December 31, 2022, respectively	7	6
Additional paid-in capital	484,666	404,386
Accumulated other comprehensive loss	(66)	(403)
Accumulated deficit	(236,885)	(185,827)
Total stockholders' equity	247,722	218,162
Total liabilities and stockholders' equity	$ 269,026	$ 238,677