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Note 5 - Transactions With Affiliated Companies (Details Textual) | Sep. 30, 2023
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Cadrenal Therapeutics, Inc. [Member] | Investment, Affiliated Issuer, Noncontrolled [Member] |
Equity Ownership, Excluding Consolidated Entity and Equity Method Investee, Percentage | 5.00%

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- Definition Percentage of ownership of equity interest excluding interest in entity that is consolidated and equity method investee. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 321 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479536/321-10-50-1 + Details
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