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Note 5 - Fair Value of Financial Instruments - Marketable Securities (Details) | Sep. 30, 2024 USD ($)
--- | ---
Commercial paper | $ 38,790,074
Commercial paper | 123,684
Commercial paper | 522
Commercial paper | 38,913,236
Commercial Paper, Not Included with Cash and Cash Equivalents [Member] |
Commercial paper | 23,575,451
Commercial paper | 41,667
Commercial paper | 522
Commercial paper | 23,616,596
US Treasury Bond Securities [Member] |
Commercial paper | 9,354,027
Commercial paper | 56,713
Commercial paper | (0)
Commercial paper | 9,410,740
US Treasury Securities [Member] |
Commercial paper | 5,860,596
Commercial paper | 25,304
Commercial paper | (0)
Commercial paper | $ 5,885,900

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