Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenue, net:
License revenue	$ 952	$ 234	$ 1,345	$ 547
Operating expenses:
Selling, general and administrative	1,551	1,582	3,042	3,299
Impairment of long-lived assets (Note 4)		1,261		1,261
Write-off of patents and trademarks			88
Depreciation & amortization	96	180	191	313
Total operating expenses	1,647	3,023	3,321	4,873
Loss from operations	(695)	(2,789)	(1,976)	(4,326)
Other income (expense):
Interest expense and other financing costs	(2)	(5)	(4)	(5)
Sublease income	376	349	786	744
Miscellaneous income	866	1,395	1,071	1,728
Total other income, net	1,240	1,739	1,853	2,467
Income (loss) from continuing operations before income taxes	545	(1,050)	(123)	(1,859)
Income tax benefit			32
Income (loss) from continuing operations, net of income taxes	545	(1,050)	(91)	(1,859)
Income (loss) from discontinued operations, net of income taxes	6	(40)	(11)	35
Net income (loss)	$ 551	$ (1,090)	$ (102)	$ (1,824)
Earnings (loss) per common share, basic and diluted:
Continuing operations (in Dollars per share)	$ 0.05	$ (0.09)	$ (0.01)	$ (0.16)
Continuing operations, Loss per common share, diluted (in Dollars per share)	0.05	(0.09)	(0.01)	(0.16)
Discontinued operations, net loss per common share, basic (in Dollars per share)	0	0	0	0
Discontinued operations, net loss per common share, diluted (in Dollars per share)	0	0	0	0
Net income (loss) per common share, basic and diluted (in Dollars per share)	0.05	(0.09)	(0.01)	(0.16)
Net loss per common share, diluted (in Dollars per share)	$ 0.05	$ (0.09)	$ (0.01)	$ (0.16)
Weighted average common shares, basic (in Shares)	11,574	11,532	11,563	11,532
Weighted average common shares, diluted (in Shares)	11,574	11,532	11,563	11,532