Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Current assets
Cash and cash equivalents	$ 16,895	$ 19,533
Receivables from ATM sales	0	1,416
Other current assets	113	115
Prepaid expenses	1,796	507
Tax credit receivable	1,662	770
Total current assets	20,466	22,341
Non-current assets:
Property, plant and equipment, net	330	309
Total assets	20,796	22,650
Current liabilities
Accounts payable	4,602	4,182
Accrued expenses and other current liabilities	2,712	5,232
Warrant derivative liability	0	1
Income taxes payable	81	74
Convertible promissory notes and accrued interest, net of debt discount	1,390	1,350
Total current liabilities	8,785	10,839
Total liabilities	8,785	10,839
Commitments and contingencies (Note 9)
Stockholders’ equity
Common stock, $0.0001 par value (250,000,000 shares authorized); 18,712,224 and 7,302,797 shares issued and 16,111,461 and 7,302,797 outstanding at September 30, 2025, and December 31, 2024, respectively	3	1
Additional paid-in capital	143,841	131,130
Accumulated other comprehensive loss	(2,303)	(354)
Accumulated deficit	(126,824)	(118,966)
Treasury stock, at cost; 2,600,763 shares	(2,706)	0
Total stockholders’ equity	12,011	11,811
Total liabilities and stockholders’ equity	$ 20,796	$ 22,650