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Marketable Securities (Details Narrative) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]          
Marketable securities held in mutual funds $ 62,000   $ 62,000   $ 2,276,000
Mutual funds classified as available for sale 62,000   62,000   $ 2,276,000
Net gain (loss) on equity securities (1,000) $ 273,000 17,000 $ 95,000  
Unrealized gain on equity securities 11,000 (59,000) (56,000) (277,000)  
Marketable securities $ (12,000) $ 332,000 $ 73,000 $ 373,000