CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 52,798	$ 31,360
Marketable securities	10,011	105,815
Prepaid expenses	4,202	3,153
Other current assets	285	475
Total current assets	67,296	140,803
Restricted cash equivalents	2,413	2,413
Property and equipment, net	7,474	10,050
Operating lease right-of-use assets	36,296	40,048
Other assets	2,512	4,812
Total assets	115,991	198,126
Current liabilities:
Accounts payable	1,316	815
Accrued liabilities	8,853	10,877
Operating lease liabilities	4,163	3,830
Other current liabilities	13	50
Total current liabilities	14,345	15,572
Long-term liabilities:
Operating lease liabilities—non-current	28,691	31,830
Total liabilities	43,036	47,402
Stockholders' equity:
Preferred stock, $0.0001 par value; 10,000,000 shares authorized as of September 30, 2024 and December 31, 2023; 0 shares issued and outstanding as of September 30, 2024 and December 31, 2023
Common stock, $0.0001 par value; 400,000,000 shares authorized as of September 30, 2024 and December 31, 2023; 68,665,640 and 67,901,610 shares issued and 68,663,065 and 67,891,311 shares outstanding as of September 30, 2024 and December 31, 2023, respectively	7	7
Additional paid-in capital	499,162	490,874
Accumulated other comprehensive loss	68	(77)
Accumulated deficit	(426,282)	(340,080)
Total stockholders' equity	72,955	150,724
Total liabilities and stockholders' equity	$ 115,991	$ 198,126

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).