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Fair Value Measurements Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Financial assets and liabilities that are measured at fair value on recurring basis
US corporate debt securities		$ 57,538,852
Investments in affiliated entities	$ 6,315,356	9,405,913
Quoted Prices in Active Markets (Level 1)
Financial assets and liabilities that are measured at fair value on recurring basis
Derivative liability (Note 10)	7,100,000
Mutual funds
Financial assets and liabilities that are measured at fair value on recurring basis
US corporate debt securities	67,338,017	57,314,871
Fair Value, Measurements, Recurring
Financial assets and liabilities that are measured at fair value on recurring basis
US corporate debt securities		223,981
Investments in affiliated entities	6,315,356	9,405,913
Assets, fair value	76,003,102	76,591,272
Derivative liability (Note 10)	8,819,023
Liabilities, fair value	8,819,023
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets (Level 1)
Financial assets and liabilities that are measured at fair value on recurring basis
US corporate debt securities		0
Investments in affiliated entities	6,315,356	9,405,913
Assets, fair value	8,665,085	19,052,420
Derivative liability (Note 10)	0
Liabilities, fair value	0
Fair Value, Measurements, Recurring | Significant Other Unobservable Inputs (Level 2)
Financial assets and liabilities that are measured at fair value on recurring basis
US corporate debt securities		223,981
Investments in affiliated entities	0	0
Assets, fair value	67,338,017	57,538,852
Derivative liability (Note 10)	0
Liabilities, fair value	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Financial assets and liabilities that are measured at fair value on recurring basis
US corporate debt securities		0
Investments in affiliated entities	0	0
Assets, fair value	0	0
Derivative liability (Note 10)	8,819,023
Liabilities, fair value	8,819,023
Fair Value, Measurements, Recurring | Money market funds
Financial assets and liabilities that are measured at fair value on recurring basis
Cash and cash equivalents	2,349,729	9,646,507
Fair Value, Measurements, Recurring | Money market funds | Quoted Prices in Active Markets (Level 1)
Financial assets and liabilities that are measured at fair value on recurring basis
Cash and cash equivalents	2,349,729	9,646,507
Fair Value, Measurements, Recurring | Money market funds | Significant Other Unobservable Inputs (Level 2)
Financial assets and liabilities that are measured at fair value on recurring basis
Cash and cash equivalents	0	0
Fair Value, Measurements, Recurring | Money market funds | Significant Unobservable Inputs (Level 3)
Financial assets and liabilities that are measured at fair value on recurring basis
Cash and cash equivalents	0	0
Fair Value, Measurements, Recurring | Mutual funds
Financial assets and liabilities that are measured at fair value on recurring basis
Cash and cash equivalents	67,338,017	57,314,871
Fair Value, Measurements, Recurring | Mutual funds | Quoted Prices in Active Markets (Level 1)
Financial assets and liabilities that are measured at fair value on recurring basis
Cash and cash equivalents	0	0
Fair Value, Measurements, Recurring | Mutual funds | Significant Other Unobservable Inputs (Level 2)
Financial assets and liabilities that are measured at fair value on recurring basis
Cash and cash equivalents	67,338,017	57,314,871
Fair Value, Measurements, Recurring | Mutual funds | Significant Unobservable Inputs (Level 3)
Financial assets and liabilities that are measured at fair value on recurring basis
Cash and cash equivalents	$ 0	$ 0

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Fair value of financial and nonfinancial obligations.

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