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Note 9 - Fair Value - Fair Values for Investments (Details)	9 Months Ended
	Sep. 30, 2023 USD ($)
Realized gains (losses)	$ 630,312
Changes in fair values	134,944
Reported Value Measurement [Member]
Carrying amount	57,550,363
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Carrying amount	$ 57,550,363

X

- Definition

Amount of unrealized and realized gain (loss) on investment in debt and equity securities.

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Amount of realized gain (loss) on investment in debt and equity securities.

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