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Note 8 - Investments, Including Investments Accounted for Using the Equity Method - Available for Sale Securities (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Long-term investments	$ 74,080,331	$ 87,104,272
US Treasury Notes Securities [Member]
U.S. Treasury notes, Cost	10,949,883	47,162,564
U.S. Treasury notes, Gross Unrealized Gain (Loss)	27,086	(49,905)
U.S. Treasury notes, Fair Value	10,976,969	47,112,659
U.S. Treasury Securities Held To Maturity [Member]
Long-term investments	4,736,409	0
Special Purpose Entities [Member]
Long-term investments	46,936,743	64,697,093
Preferred Stock [Member]
Long-term investments	348,694	348,694
My Bundle TV Inc. [Member]
Long-term investments	3,000,000	3,000,000
Voting Common Stock of Privately Held Company CB&T Holding Corporation [Member]
Long-term investments	$ 19,058,485	$ 19,058,485

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