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Investments (Details 2) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Gross gains | $ (1,331,675) | $ 1,223,779 | $ 592,397 | $ 0 |
Estimated fair value | 7,379,111 |  | 7,379,111 |  | $ 3,518,626
Other Investments [Member] |  |  |  |  |
Cost | 3,999,381 |  | 3,999,381 |  | 2,149,381
Gross gains |  |  | 3,379,730 |  | 1,369,245
Estimated fair value | 7,379,111 |  | 7,379,111 |  | 3,518,626
Hedge Fund [Member] |  |  |  |  |
Cost | 3,999,381 |  | 3,999,381 |  | 1,999,381
Gross gains |  |  | 3,379,730 |  | 1,369,245
Estimated fair value | 7,379,111 |  | 7,379,111 |  | 3,368,626
Real Estate Limited Partnership [Member] |  |  |  |  |
Cost | 0 |  | 0 |  | 150,000
Gross gains |  |  | 0 |  | 0
Estimated fair value | 0 |  | 0 |  | 150,000
Equity Securities [Member] |  |  |  |  |
Cost | 37,545,241 |  | 37,545,241 |  | 32,571,166
Gross gains |  |  | 2,743,653 |  | 2,673,789
Gross losses |  |  | (228,022) |  | 831,642
Estimated fair value | 40,060,872 |  | 40,060,872 |  | 34,413,313
Preferred Stock [Member] |  |  |  |  |
Cost | 21,934,910 |  | 21,934,910 |  | 18,097,942
Gross gains |  |  | 1,123,310 |  | 853,277
Gross losses |  |  | (157,431) |  | 426,942
Estimated fair value | 22,900,789 |  | 22,900,789 |  | 18,524,277
Common stock, mutual fund and exchange traded funds [Member] |  |  |  |  |
Cost | 15,610,331 |  | 15,610,331 |  | 14,473,224
Gross gains |  |  | 1,620,343 |  | 1,820,512
Gross losses |  |  | (70,591) |  | 404,700
Estimated fair value | $ 17,160,083 |  | $ 17,160,083 |  | $ 15,889,036

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