Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	Sep. 30, 2025	Dec. 31, 2024
Investment Owned, Fair Value	$ 256,934	$ 1,060,474
Deferred Compensation Arrangement, Percent of Compensation Deferred	50.00%
Venture Capital Funds [Member]
Investment Owned, Fair Value	$ 198,000
Restricted Securities [Member]
Investment Owned, Fair Value	$ 197,925	$ 315,250

Fair value of investment in security owned.

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+ Details