CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 28,163	$ 12,337
Marketable securities	157,329	207,254
Restricted cash	39	39
Prepaid expenses and other current assets	7,423	8,187
Total current assets	192,954	227,817
Property and equipment, net	12,615	13,992
Other assets	801	577
Total assets	206,370	242,386
Current liabilities:
Accounts payable	2,272	1,942
Accrued liabilities	3,325	4,449
Deferred rent, current portion	100	217
Total current liabilities	5,697	6,608
Deferred rent, net of current portion	2,477	2,392
Total liabilities	8,174	9,000
Stockholders' equity
Preferred stock; par value of $0.001 per share; 10,000,000 shares authorized at June 30, 2022 and December 31, 2021, No shares issued and outstanding at June 30, 2022 and December 31, 2021
Common stock, par value of $0.001 per share; 100,000,000 shares authorized at June 30, 2022 and December 31, 2021. 27,748,844 and 27,680,997 shares issued and outstanding at June 30, 2022 and December 31, 2021, respectively	28	28
Additional paid-in capital	426,056	421,047
Accumulated other comprehensive loss	(2,340)	(663)
Accumulated deficit	(225,548)	(187,026)
Total stockholders' equity	198,196	233,386
Total liabilities and stockholders' equity	$ 206,370	$ 242,386

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).