Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 40,456	$ 62,882
Marketable securities	236,105	145,473
Prepaid expenses	8,241	2,570
Other current assets	920	729
Total current assets	285,722	211,654
Property and equipment, net	3,431	3,283
Operating lease right-of-use asset	9,741	2,714
Other assets	674	282
Total assets	299,568	217,933
Current liabilities:
Accounts payable	2,479	2,028
Accrued liabilities	5,953	4,985
Operating lease liabilities, current	2,565	1,199
Total current liabilities	10,997	8,212
Operating lease liabilities, noncurrent	8,865	3,223
Debt, noncurrent	9,834	9,622
Total liabilities	29,696	21,057
Stockholders' equity:
Common stock, $0.001 par value, 125,000,000 shares authorized as of December 31, 2022 and 2021; 68,493,429 and 56,259,747 shares issued and outstanding as of December 31, 2022 and 2021, respectively	68	56
Preferred stock, $0.001 par value, 10,000,000 shares authorized, zero shares issued and outstanding as of December 31, 2022 and 2021	0	0
Additional paid-in capital	519,620	377,765
Accumulated other comprehensive loss	(923)	(291)
Accumulated deficit	(248,893)	(180,654)
Total stockholders' equity	269,872	196,876
Total liabilities and stockholders' equity	$ 299,568	$ 217,933