CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 27,706	$ 24,027
Marketable securities	167,730	165,627
Prepaid expenses and other current assets	2,458	3,319
Total current assets	197,894	192,973
Property and equipment, net	2,742	2,741
Operating lease right-of-use assets	5,782
Other assets	3,071	2,922
Total assets	209,489	198,636
Current liabilities:
Accounts payable	4,043	1,999
Accrued expenses	8,240	6,326
Deferred revenue, current		1,016
Operating lease liabilities, current	1,551
Other current liabilities	33	254
Total current liabilities	13,867	9,595
Deferred rent, net of current portion		2,150
Deferred revenue, non-current		511
Operating lease liabilities, non-current	6,316
Total liabilities	20,183	12,256
Commitments and contingencies
Stockholders' equity:
Preferred stock
Common stock	3	3
Additional paid-in capital	534,689	470,629
Accumulated other comprehensive loss	(453)	(206)
Accumulated deficit	(344,933)	(284,046)
Total stockholders' equity	189,306	186,380
Total liabilities and stockholders' equity	$ 209,489	$ 198,636

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).

Name:	us-gaap_AccountsPayableCurrent
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).