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Note 8 - Investments, Including Investments Accounted for Using the Equity Method - Available for Sale Securities (Details) - US Treasury Notes Securities [Member] - USD ($)	Jun. 30, 2022	Dec. 31, 2021
U.S. Treasury notes, Cost	$ 40,829,504	$ 87,541,764
U.S. Treasury notes, Gross Unrealized Gain (Loss)	(269,439)	3,140
U.S. Treasury notes, Fair Value	$ 40,560,065	$ 87,544,904

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- Definition

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

+ References

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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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