Note 2 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2026

Notes Tables

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

		*June 30,*
		*2026*				*2025*
Common Stock options			42,211				104,191
Common Stock warrants			447,673				745,701
Total Common Stock equivalents			489,884				849,892

Fair Value, by Balance Sheet Grouping [Table Text Block]

		*June 30, 2026*								*December 31, 2025*							*Fair Value*
		*Carrying Value*				*Estimated Fair Value*				*Carrying Value*				*Estimated Fair Value*			*Input Hierarchy*
Money market accounts		$	25,023			$	25,023			$	25,689			$	25,689		Level 1
Earnout liabilities			—				—				152,049				152,049		Level 3

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

		*June 30,*
Earnout Liabilities:		*2026*				*2025*
Balance, beginning of year		$	152,049			$	—
Initial recognition			—				301,633
Change in fair value			(152,049	)			29,630
Balance, end of period		$	—			$	331,263

Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

		*June 30,*			*December 31,*
		*2026*			*2025*
Discount rate		21%			21%
Probability of milestone achievement		0%			100%
Expected term (in years)		0.50			1.00

		*June 30,*				*December 31,*
		*2026*				*2025*
Discount rate			21%				21%
Probability of milestone achievement			0%				25%
Expected term (in years)			0.54				1.04