CONDENSED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 354	$ 1,385
Receivables	0	3
Prepaid expenses and other current assets, current	616	600
Total current assets	970	1,988
Property and equipment, net	82	91
Prepaid expenses and other assets, non current	831	887
Total assets	1,883	2,966
Current liabilities:
Accounts payable	400	613
Accrued expenses	195	200
Total current liabilities	595	813
Total liabilities	595	813
Commitments and contingencies (Note 4)
Stockholders' equity
Common stock $0.001 par value; 50,000,000 shares authorized, 2,378,383 and 2,349,480 shares issued and outstanding at March 31, 2026 and at December 31, 2025, respectively	2	2
Additional paid-in capital	926,914	926,773
Accumulated deficit	(925,628)	(924,622)
Total stockholders' equity	1,288	2,153
Total liabilities and stockholders' equity	1,883	2,966
Series A-1 Preferred Stock
Stockholders' equity
Preferred stock value	0	0
Series A-2 Preferred Stock
Stockholders' equity
Preferred stock value	$ 0	$ 0

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).