Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 140,020	$ 74,843
Short-term investments	102,637	167,872
Prepaid expenses and other current assets	5,441	4,978
Total current assets	248,098	247,693
Restricted cash	1,032	1,166
Property and equipment, net	16,838	17,848
Operating lease right-of-use assets	19,128	20,333
Total assets	285,096	287,040
Current liabilities:
Accounts payable	7,416	11,153
Accrued liabilities	13,448	9,250
Operating lease liabilities, current	1,316	1,202
Other current liabilities	180	139
Total current liabilities	22,360	21,744
Operating lease liabilities, non-current	31,542	33,387
Total liabilities	53,902	55,131
Commitments and contingencies (Note 5)
Stockholders’ equity:
Common stock, $0.001 par value; 300,000,000 shares authorized as of December 31, 2022 and 2021, respectively; 47,722,995 and 38,560,854 shares issued and outstanding as of December 31, 2022 and 2021, respectively	48	39
Additional paid-in capital	669,780	528,365
Accumulated other comprehensive loss	(372)	(180)
Accumulated deficit	(438,262)	(296,315)
Total stockholders' equity	231,194	231,909
Total liabilities and stockholders’ equity	$ 285,096	$ 287,040