CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 5,500	$ 6,375
Prepaid expenses and other current assets	563	720
Total current assets	6,063	7,095
Other assets	101	101
Total assets	6,164	7,196
Current liabilities:
Liabilities	1,141	645
Accounts payable	699	265
Accrued expenses	442	380
Commitments and contingencies (Note 9)
Stockholders' deficit:
Common stock, $0.001 par value: 200,000,000 shares authorized; 75,462,390 shares issued and outstanding at March 31, 2026 and December 31, 2025	75	75
Additional paid-in capital	309,573	311,213
Accumulated deficit	(308,920)	(307,314)
Total stockholders' deficit	728	3,974
Total liabilities, redeemable convertible preferred stock and stockholders` equity	6,164	7,196
Series B Redeemable Convertible Preferred Stock [Member]
Stockholders' deficit:
Series B redeemable convertible preferred stock, $0.001 par value: 10,000,000 shares authorized; 119,318 shares issued and outstanding at March 31, 2026 and December 31, 2025	$ 4,295	$ 2,577

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).