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Marketable Equity Securities | 6 Months Ended
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Jun. 30, 2025
Investments, Debt and Equity Securities [Abstract] |
Marketable Equity Securities | 4. MARKETABLE EQUITY SECURITIES Investments in marketable equity securities consisted of the following:
|  |  |  |  | Gross Unrealized |  |  |  |
June 30, 2025 |  | Cost Basis |  |  | Gains |  |  | Losses |  |  | Value |
Investment in marketable equity securities |  |  |  |  |  |  |  |  |  |  |  |
Common stocks |  | $ | 755,487 |  |  | $ | 1,816,708 |  |  | $ | — |  |  | $ | 2,572,195 |
Total investment in marketable equity securities |  | $ | 755,487 |  |  | $ | 1,816,708 |  |  | $ | — |  |  | $ | 2,572,195 |
|  |  |  |  | Gross Unrealized |  |  |  |
December 31, 2024 |  | Cost Basis |  |  | Gains |  |  | Losses |  |  | Value |
Investment in marketable equity securities |  |  |  |  |  |  |  |  |  |  |  |
Common stocks |  | $ | 755,487 |  |  | $ | 1,853,500 |  |  | $ | — |  |  | $ | 2,608,987 |
Total investment in marketable equity securities |  | $ | 755,487 |  |  | $ | 1,853,500 |  |  | $ | — |  |  | $ | 2,608,987 |

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