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Investments - Equity Method Investments (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Schedule of Equity Method Investments [Line Items] |  |  |
Assets | $ 263,097,341 | $ 272,663,950 |
Liabilities | 69,644,255 | 65,629,445 |
Company sponsored equity method investments | 0 | 61,149,774 |
Investment income (loss), net | 6,584,849 | 30,507,375 | $ (6,272,678)
Realized gains | (1,488,059) | 9,056,152 | 2,143,695
Unrealized gains (losses) | 5,348,243 | 15,086,747 | (16,067,048)
DHCM’s portion of net income (loss) | 1,807,279 | 8,301,571 | (2,400,467)
Equity Method Investment, Nonconsolidated Investee or Group of Investees |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Assets | 0 | 237,073,628 |
Liabilities | 0 | 38,453,935 |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 0 | 198,619,693 |
Investment income (loss), net | 4,246,021 | 5,346,588 | 1,154,007
Other Cost and Expense, Operating | 1,114,278 | 1,551,291 | 978,322
Realized gains | (1,577,639) | 6,390,727 | 1,918,661
Unrealized gains (losses) | 2,289,667 | 14,805,837 | (10,229,319)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | $ 3,843,771 | $ 24,991,861 | $ (8,134,973)

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