Note 5 - Fair Value of Financial Instruments - Marketable Securities (Details)	Dec. 31, 2024 USD ($)
Available-for-Sale Debt Securities, Amortized Cost	$ 29,866,326
Available-for-Sale Deb Securities, Unrealized Gains	58,981
Available-for-Sale Debt Securities, Unrealized Losses	(2,784)
Available-for-Sale Debt Securities	29,922,523
Available-for-Sale Debt Securities, Unrealized Losses	2,784
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Available-for-Sale Debt Securities, Amortized Cost	18,019,334
Available-for-Sale Deb Securities, Unrealized Gains	16,393
Available-for-Sale Debt Securities, Unrealized Losses	(2,784)
Available-for-Sale Debt Securities	18,032,943
Available-for-Sale Debt Securities, Unrealized Losses	2,784
US Treasury Bond Securities [Member]
Available-for-Sale Debt Securities, Amortized Cost	7,920,620
Available-for-Sale Deb Securities, Unrealized Gains	30,440
Available-for-Sale Debt Securities, Unrealized Losses	0
Available-for-Sale Debt Securities	7,951,060
Available-for-Sale Debt Securities, Unrealized Losses	(0)
US Treasury Securities [Member]
Available-for-Sale Debt Securities, Amortized Cost	3,926,372
Available-for-Sale Deb Securities, Unrealized Gains	12,148
Available-for-Sale Debt Securities, Unrealized Losses	0
Available-for-Sale Debt Securities	3,938,520
Available-for-Sale Debt Securities, Unrealized Losses	$ (0)