Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Current Assets
Cash and cash equivalents	$ 450	$ 2,873
Accounts receivable, net	85	70
Inventories	71	33
Prepaid expenses and other current assets	248	316
Total current assets	854	3,292
Property and equipment, net	93	91
Operating lease right-of-use assets, net	82	105
Intangible assets, net	23,763	24,274
Other non-current assets	8	8
TOTAL ASSETS	24,800	27,770
Current Liabilities
Accounts payable	647	230
Accrued expenses	1,630	1,548
Current portion of interest payable due to related parties	106	0
Current portion of royalties payable due to related parties	21	32
Current portion of operating lease liabilities	83	98
Total current liabilities	4,089	2,085
Royalties payable due to related parties	10,376	9,213
Deferred tax liability	2,416	3,141
Notes payable due to related parties	0	1,500
Interest payable due to related parties	0	61
Operating lease liabilities	3	13
Total liabilities	16,884	16,013
Commitments and contingencies (see Note 16)
Stockholders' Equity
Common stock, $0.0001 par value, 60,000,000 shares authorized; 9,268,632 and 8,004,633 shares issued and outstanding as of March 31, 2025 and December 31, 2024, respectively	0	0
Additional paid-in capital	304,313	304,109
Accumulated deficit	(296,397)	(292,352)
Total stockholders' equity	7,916	11,757
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	24,800	27,770
Series A Preferred Stock [Member]
Stockholders' Equity
Preferred Stock	0	0
Series X Preferred Stock [Member]
Stockholders' Equity
Preferred Stock	0	0
Nonrelated Party [Member]
Current Liabilities
Notes payable	102	177
Related Party [Member]
Current Liabilities
Notes payable	$ 1,500	$ 0