Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 26,422	$ 48,438
Short-term investments	10,248	2,837
Prepaid expenses and other current assets	3,183	3,566
Total current assets	39,853	54,841
Restricted cash	631	631
Property and equipment, net	2,201	2,444
Operating lease right-of-use asset	743	808
Other long-term assets	85	55
Total assets	43,513	58,779
Current liabilities:
Accounts payable	867	319
Accrued liabilities	4,199	12,402
Current operating lease liability	426	414
Total current liabilities	5,492	13,135
Operating lease liability, less current portion	691	803
Total liabilities	6,183	13,938
Stockholders' equity:
Common stock, $0.0001 par value; 900,000,000 shares authorized at March 31, 2025 and December 31, 2024, respectively; 39,042,445 and 39,040,945 shares issued and outstanding at March 31, 2025 and December 31, 2024, respectively	4	4
Additional paid-in capital	452,619	450,982
Accumulated other comprehensive (loss) income	(4)	1
Accumulated deficit	(415,289)	(406,146)
Total stockholders' equity	37,330	44,841
Total liabilities and stockholders' equity	$ 43,513	$ 58,779

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).