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Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Revenue, net:    
License revenue $ 724 $ 393
Operating expenses:    
General and administrative 1,353 1,491
Write-off of patents 88
Depreciation & amortization 94 95
Total operating expenses 1,447 1,674
Loss from operations (723) (1,281)
Other income:    
Interest income, net 41 29
Sublease income 517 410
Miscellaneous income 268 174
Total other income, net 826 613
Income (loss) from continuing operations before income taxes 103 (668)
Income tax benefit 32
Income (loss) from continuing operations, net of income taxes 103 (636)
Loss from discontinued operations, net of income taxes (8) (17)
Net income (loss) $ 95 $ (653)
Income (loss) per common share, basic and diluted:    
Continuing operations (in Dollars per share) $ 0.01 $ (0.06)
Continuing operations, diluted (in Dollars per share) 0.01 (0.06)
Discontinued operations, net (in Dollars per share) 0 0
Discontinued operations, net, diluted (in Dollars per share) 0 0
Net income (loss) per common share, basic (in Dollars per share) 0.01 (0.06)
Net income (loss) per common share, diluted (in Dollars per share) $ 0.01 $ (0.06)
Weighted average common shares, basic (in Shares) 11,574 11,552
Weighted average common shares, diluted (in Shares) 11,640 11,552