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FAIR VALUE OF FINANCIAL INSTRUMENTS - Unrealized gains and losses (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Cumulative unrealized gains and losses from Investments in debt and equity securities |  |  |  |  |
Cost | $ 28,578,594 |  | $ 28,578,594 |  | $ 35,186,839
Cumulative Unrealized Gains | 1,924,411 |  | 1,924,411 |  | 5,141,469
Aggregate Fair Value | 30,503,005 |  | 30,503,005 |  | 40,328,308
Unrealized gain (loss) on debt and equity securities | 2,383,779 | $ 1,449,825 | (3,217,058) | $ 1,402,660 |
Equity Securities |  |  |  |  |
Cumulative unrealized gains and losses from Investments in debt and equity securities |  |  |  |  |
Cost | 24,391,134 |  | 24,391,134 |  | 24,230,746
Cumulative Unrealized Gains | 1,838,051 |  | 1,838,051 |  | 5,029,080
Aggregate Fair Value | 26,229,185 |  | 26,229,185 |  | 29,259,826
Mutual funds |  |  |  |  |
Cumulative unrealized gains and losses from Investments in debt and equity securities |  |  |  |  |
Cost | 3,580,551 |  | 3,580,551 |  | 10,319,644
Cumulative Unrealized Gains | 69,638 |  | 69,638 |  | 84,574
Aggregate Fair Value | 3,650,189 |  | 3,650,189 |  | 10,404,218
Municipal bonds |  |  |  |  |
Cumulative unrealized gains and losses from Investments in debt and equity securities |  |  |  |  |
Cost | 606,909 |  | 606,909 |  | 636,449
Cumulative Unrealized Gains | 16,722 |  | 16,722 |  | 27,815
Aggregate Fair Value | $ 623,631 |  | $ 623,631 |  | $ 664,264

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