Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 187,467	$ 201,015
Prepaid expenses and other current assets	7,532	10,211
Total current assets	194,999	211,226
Operating lease right-of-use assets		122
Property and equipment, net	22,609	22,864
Intangible assets, net	503	622
Total assets	218,111	234,834
Current liabilities:
Accounts payable and accrued expenses	8,242	4,017
Accrued development expense	5,276	2,280
Accrued compensation and benefits	212	170
Operating lease liabilities, current		104
Other current liabilities	179	492
Total current liabilities	13,909	7,063
Operating lease liabilities, non-current		35
Other non-current liabilities	197	197
Total liabilities	14,106	7,295
Commitments and contingencies (Notes 10, 11 and 12)
Stockholders' equity:
Preferred stock, $0.001 par value; 10,000,000 shares authorized, none issued and outstanding
Common stock, $0.001 par value; 120,000,000 shares authorized; 41,749,435 and 41,735,557 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively	42	42
Additional paid-in capital	511,786	511,049
Accumulated deficit	(307,823)	(283,552)
Total stockholders' equity	204,005	227,539
Total liabilities and stockholders' equity	$ 218,111	$ 234,834

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).