Note 6 - Net Income (Loss) Per Share - Earnings Per Share Reconciliation (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Numerator for basic and diluted income (loss) per share, net income (loss) available to common shareholders	$ 14,833	$ (1,622,270)
Denominator:
Denominator for basic income (loss) per share, weighted average shares outstanding (in shares)	20,122,972	20,280,575
Effect of dilutive securities (in shares)	6,385,900	0
Denominator for diluted earnings per share, adjust weighted average shares and assumed conversion (in shares)	26,508,872	20,280,575
Basic income (loss) per common share (in dollars per share)	$ 0.00	$ (0.08)
Diluted income (loss) per common share and common share equivalent (in dollars per share)	$ 0.00	$ (0.08)