Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 204	$ 1,779
Prepaid expenses and other current assets	1,198	795
Note receivable, net	5,803	0
Total current assets	7,205	2,574
Property and equipment, net	61	111
Restricted cash	10	9
Operating lease right-of-use assets	707	1,051
Intangible assets	8,000	24,130
Total assets	15,983	27,875
Current liabilities:
Accounts payable	1,651	1,879
Accrued expenses	2,007	1,706
Operating lease liabilities - current portion	544	508
Convertible notes payable	2,590	0
Loans payable	111	333
Other current liabilities	464	359
Total current liabilities	21,901	5,717
Operating lease liabilities - non-current portion	240	653
Other liabilities	3,800	3,800
Deferred tax liabilities	1,643	4,528
Total liabilities	27,584	14,698
Mezzanine equity:
Redeemable preferred stock	9	3,181
Stockholders’ equity:
Preferred stock, $0.001 par value; 4,970,680 shares authorized; 0 shares issued and outstanding at September 30, 2025 and December 31, 2024, respectively	0	0
Common stock, $0.001 par value; 120,000,000 shares authorized; 33,634,221 and 256,397 shares issued and 33,634,220 and 256,396 shares outstanding at September 30, 2025 and December 31, 2024, respectively	34	0
Additional paid-in capital	880,781	859,660
Accumulated deficit	(889,371)	(846,610)
Treasury stock (at cost); 1 share	(3,054)	(3,054)
Total stockholders’ equity	(11,610)	9,996
Total liabilities, mezzanine equity & stockholders’ equity	15,983	27,875
Series B Preferred Stock [Member]
Mezzanine equity:
Redeemable preferred stock	0	0
Series C Preferred Stock [Member]
Mezzanine equity:
Redeemable preferred stock	4	3,181
Series D Preferred Stock [Member]
Mezzanine equity:
Redeemable preferred stock	5	0
Embedded Derivative Financial Instruments, Convertible Promissory Note [Member]
Current liabilities:
Derivative liability	5,089	299
Warrant Liability [Member]
Current liabilities:
Derivative liability	2	305
ELOC Purchase Agreement [Member]
Current liabilities:
Convertible notes payable	$ 9,443	$ 328