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Note 9 - Investments, Including Investments Accounted for Using the Equity Method (As Restated) - Reconciliation of the Company's Investments in Equity Affiliates (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Beginning of year $ 771,805 $ 568,713
Additional investments in unconsolidated affiliates 16,000,000 264,834
Distributions received (1,433,480) (541,108)
Equity in income of unconsolidated affiliates 5,575,571 479,366
End of year $ 20,913,896 $ 771,805