Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 37,494	$ 60,816
Short-term investments, available-for-sale	314,649	177,272
Prepaid expenses and other current assets	8,545	7,692
Total current assets	360,688	245,780
Restricted cash	2,743	2,098
Property and equipment, net	61,908	12,856
Operating lease right-of-use assets	45,749	11,678
Other long-term assets	1,850	1,491
Total assets	472,938	273,903
Current liabilities:
Accounts payable	1,761	1,112
Operating lease liabilities, current portion	4,249	2,484
Accrued and other current liabilities	16,036	9,347
Total current liabilities	22,046	12,943
Operating lease liabilities, net of current portion	78,685	9,975
Other long-term liabilities		18
Total liabilities	100,731	22,936
Commitments and contingencies (Note 7)
Stockholders' equity:
Preferred stock, $0.0001 par value; 54,350,179 shares authorized at December 31, 2022; no shares issued and outstanding at December 31, 2022 and 2021
Common stock, $0.0001 par value; 100,000,000 shares authorized at December 31, 2022; 48,877,806 and 32,971,107 shares issued and outstanding at December 31, 2022 and 2021, respectively	5	3
Additional paid-in capital	690,814	455,210
Accumulated other comprehensive loss	(679)	(150)
Accumulated deficit	(317,933)	(204,096)
Total stockholders' equity	372,207	250,967
Total liabilities and stockholders' equity	$ 472,938	$ 273,903