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Investments (Details) - Schedule of Net Investment (Loss) Income - USD ($) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Unrealized holding income of long-term investments: |  |  |
Net investment income (loss) | $ 330,552 | $ (19,363) | $ 103,375
Trading Securities [Member] |  |  |
Gain (loss) from sales of short-term investments: |  |  |
Gain (loss) from sales of short-term investments | 31,097 | (30,848) | 3,945
Unrealized holding income (loss) of short-term investments: |  |  |
Unrealized holding income (loss) of short-term investments | 49,245 | (2,722) | 82,241
Held-to-Maturity Debt Securities [Member] |  |  |
Gain (loss) from sales of short-term investments: |  |  |
Gain (loss) from sales of short-term investments | 11,397 |  | 17,189
Unrealized holding income (loss) of short-term investments: |  |  |
Unrealized holding income (loss) of short-term investments | 184,018 | 14,207 |
Unrealized holding income of long-term investments: |  |  |
Unrealized holding income of long-term investments | $ 54,795 |  |

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