CONDENSED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 37,077	$ 47,478
Marketable securities	77,761	111,384
Prepaid expenses and other current assets	5,658	2,920
Total current assets	120,496	161,782
Property and equipment, net	1,933	2,448
Operating lease right-of-use assets	4,304	5,228
Other assets	447	3,871
Total assets	127,180	173,329
Current liabilities:
Accounts payable	2,716	5,176
Accrued expenses	9,487	14,103
Operating lease liabilities, current	2,568	2,448
Other current liabilities	30	109
Total current liabilities	14,801	21,836
Operating lease liabilities, non-current	3,159	4,458
Total liabilities	17,960	26,294
Commitments and contingencies
Stockholders' equity:
Preferred stock
Common stock	3	3
Additional paid-in capital	652,130	631,611
Accumulated other comprehensive gain (loss)	(47)	103
Accumulated deficit	(542,866)	(484,682)
Total stockholders' equity	109,220	147,035
Total liabilities and stockholders' equity	$ 127,180	$ 173,329

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).