Note 6 - Net Income (Loss) Per Share (Tables)

6 Months Ended

Jun. 30, 2025

Notes Tables

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

	Three Months Ended June 30,					Six Months Ended June 30,
	2025			2024		2025			2024
Numerator:
Numerator for basic and diluted income (loss) per share, net (loss) available to common shareholders	$	(366,654	)	$	75,492	$	(601,624	)	$	(174,696	)
Denominator:
Denominator for basic income (loss) per share, weighted average shares outstanding		26,456,411			26,534,407		26,577,052			26,454,848
Effect of dilutive securities		—			—		—			—
Denominator for diluted earnings per share, adjusted for weighted average shares and assumed conversion		26,456,411			26,534,407		26,577,052			26,454,848
Basic income (loss) per common share	$	(0.01	)	$	0.00	$	(0.02	)	$	(0.01	)
Diluted income (loss) per common share and common share equivalent	$	(0.01	)	$	0.00	$	(0.02	)	$	(0.01	)

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

	Six Months Ended June 30,
	2025		2024
Anti-dilutive warrants		945,599		945,599