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Marketable Securities (Details Narrative) - USD ($)
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]      
Marketable securities held in mutual funds $ 1,349,000   $ 2,276,000
Marketable securities $ 1,349,000   $ 2,276,000
Equity securities description The net loss recognized for the three-month period ended March 31, 2025 on equity securities was ($69,000). The unrealized gains recognized for the three-month period ended March 31, 2025 on equity securities still held was $96,000. The net gain recognized for the three-month period ended March 31, 2025 on equity securities was $27,000. The net loss recognized for the three-month period ended March 31, 2024 on equity securities was ($20,000). The unrealized losses recognized during the three-month period ended March 31, 2024 on equity securities still held was ($73,000). The net loss recognized for the three-month period ended March 31, 2024 on equity securities was ($93,000).  
Marketable securities $ 69,000 $ 20,000  
Sale of marketable securities 96,000 73,000  
Unrealized gain on marketable securities $ 27,000 $ 93,000