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Note 8 - Segment Reporting (ASC Topic 280) - Combined Statements by Reporting Segment (Details) (Parentheticals) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Investments, at cost	$ 12,632,301	$ 19,469,359

X

- Definition

Cost of the investment.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant