Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 201,015	$ 233,437
Prepaid expenses and other current assets	10,211	11,045
Total current assets	211,226	244,482
Operating lease right-of-use assets	122	210
Property and equipment, net	22,864	20,616
Intangible assets, net	622	1,075
Other assets		399
Total assets	234,834	266,782
Current liabilities:
Accounts payable	4,017	7,126
Accrued development expense	2,280	2,803
Accrued compensation and benefits	170	1,877
Operating lease liabilities, current	104	97
Other current liabilities	492	631
Total current liabilities	7,063	12,534
Operating lease liabilities, non-current	35	139
Other non-current liabilities	197	194
Total liabilities	7,295	12,867
Commitments and contingencies (Notes 9, 10 and 11)
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; 41,735,557 and 40,016,792 shares issued and outstanding at December 31, 2022 and 2021, respectively	42	40
Additional paid-in capital	511,049	461,181
Accumulated deficit	(283,552)	(207,306)
Total stockholders' equity	227,539	253,915
Total liabilities and stockholders' equity	$ 234,834	$ 266,782

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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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).