Note 7 - Investments in Equity Securities - Summary of Investment in Equity Securities (Details) - USD ($)	9 Months Ended	12 Months Ended
Sep. 30, 2023	Dec. 31, 2022
Balance	$ 657,971	$ 1,518,244
Acquisitions, Dispositions and Settlements	0	0
Unrealized Gains Included in Earnings	29,244	(860,273)
Realized Gains (Losses) Included in Earnings	(46,284)	0
Balance	$ 640,931	$ 657,971

Amount of Acquisitions, Dispositions and Settlements related to equity security measured at fair value with change in fair value recognized in net income (FV-NI).

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
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-Section S99
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Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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