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Marketable Securities (Details Narrative) - USD ($) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Marketable Securities [Line Items] |  |  |
Held value of marketable securities | $ 6,507,000 |  | $ 7,631,000
Fair Value | 6,507,000 |  | 7,631,000
Short-Term Investments | 6,507,000 |  | 7,631,000
Net gain recognized during the period on equity securities | (177,000) | $ 109,000 |
Net gains and losses recognized during the period on equity securities sold during the period | (218,000) | (87,000) |
Unrealized gains and losses recognized during the reporting period on equity securities still held at the reporting date | 41,000 | $ 196,000 |
Mutual Funds [Member] |  |  |
Marketable Securities [Line Items] |  |  |
Fair Value | 6,507,000 |  | 7,631,000
Short-Term Investments | $ 6,507,000 |  | $ 7,631,000

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