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Marketable Equity Securities | 12 Months Ended
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Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract] |
Marketable Equity Securities | 4. MARKETABLE EQUITY SECURITIES Investments in marketable equity securities consisted of the following:
|  |  |  |  | Gross Unrealized |  |  |  |
December 31, 2023 |  | Cost Basis |  |  | Gains |  |  | Losses |  |  | Value |
Investment in marketable equity securities |  |  |  |  |  |  |  |  |  |  |  |
Common stocks |  | $ | 755,487 |  |  | $ | 2,019,542 |  |  | $ | — |  |  | $ | 2,775,029 |
Total investment in marketable equity securities |  | $ | 755,487 |  |  | $ | 2,019,542 |  |  | $ | — |  |  | $ | 2,775,029 |
|  |  |  |  | Gross Unrealized |  |  |  |
December 31, 2022 |  | Cost Basis |  |  | Gains |  |  | Losses |  |  | Value |
Investment in marketable equity securities |  |  |  |  |  |  |  |  |  |  |  |
Common stocks |  | $ | 755,487 |  |  | $ | 1,610,666 |  |  | $ | — |  |  | $ | 2,366,153 |
Total investment in marketable equity securities |  | $ | 755,487 |  |  | $ | 1,610,666 |  |  | $ | — |  |  | $ | 2,366,153 |

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