Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Current assets
Cash and cash equivalents	$ 16,982	$ 14,687
Restricted cash	9,999	0
Other current assets	61	265
Prepaid expenses	3,377	2,110
Tax credit receivable	1,310	866
Total current assets	31,729	17,928
Non-current assets:
Property, plant and equipment, net	386	330
Total assets	32,115	18,258
Current liabilities
Accounts payable	4,113	4,282
Accrued expenses and other current liabilities	1,971	2,667
Income taxes payable	81	81
Promissory note, net of discounts and accrued interest	20,862	0
Derivative liability	128	0
Convertible promissory notes and accrued interest	1,424	1,400
Total current liabilities	28,579	8,430
Total liabilities	28,579	8,430
Commitments and contingencies (Note 8)
Stockholders’ equity
Common stock, $0.0001 par value: 250,000,000 shares authorized; 19,124,363 and 19,030,619 shares issued and 15,910,724 and 16,080,980 outstanding at June 30, 2026 and December 31, 2025, respectively	3	3
Additional paid-in capital	144,683	144,233
Accumulated other comprehensive loss	(1,346)	(1,021)
Accumulated deficit	(136,352)	(130,197)
Treasury stock, at cost; 3,213,639 and 2,949,639 shares at June 30, 2026, and December 31, 2025, respectively	(3,452)	(3,190)
Total stockholders’ equity	3,536	9,828
Total liabilities and stockholders’ equity	$ 32,115	$ 18,258

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).