Note 2 - Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2025

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

		Three Months Ended September 30,						Nine Months Ended September 30,
	2025			2024			2025			2024
Numerator:
Net income (loss)	$	(2,615,163	)	$	(3,459,754	)	$	3,164,500		$	(12,705,049	)
Accrued dividends on Series F Preferred Stock		(36,112	)		(47,879	)		(155,800	)		(158,862	)
Deemed dividends		(208,526	)		(1,450,232	)		(4,942,669	)		(6,707,687	)
Numerator for basic EPS - net income (loss) available to common stockholders		(2,859,801	)		(4,957,865	)		(1,933,969	)		(19,571,598	)
Effect of convertible securities and liability classified equity instrument:
Accrued dividends on Series F Preferred Stock		—			—			155,800			—
Interest expense on convertible note payable		—			—			45,150			—
Gain on change in fair value of warrant liabilities		—			—			(8,511,000	)		—
Numerator for diluted EPS - net loss available to common stockholders	$	(2,859,801	)	$	(4,957,865	)	$	(10,244,019	)	$	(19,571,598	)
Denominator:
Denominator for basic EPS - weighted average shares		32,171,261			309,350			19,888,046			240,309
Effect of dilutive securities:
Incremental shares for outstanding warrants		—			—			—			—
Convertible Series F Preferred Stock		—			—			2,143,977			—
Series A Warrants outstanding alternate cashless exercise		—			—			60,973			—
Unvested restricted stock units		—			—			106,797			—
Denominator for diluted EPS - weighted average shares		32,171,261			309,350			22,199,793			240,309
Net loss per common share - basic	$	(0.09	)	$	(16.03	)	$	(0.10	)	$	(81.44	)
Net loss per common share - diluted	$	(0.09	)	$	(16.03	)	$	(0.46	)	$	(81.44	)