Note 6 - Net Income (Loss) Per Share - Earnings Per Share Reconciliation (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Numerator for basic and diluted income (loss) per share, net income (loss) available to common shareholders	$ 2,851,267	$ (720,913)	$ 2,676,571	$ (501,039)
Denominator:
Basic (in shares)	27,322,497	26,383,144	26,747,277	26,386,586
Effect of dilutive securities (in shares)	0	0	0	0
Diluted (in shares)	27,322,497	26,383,144	26,747,277	26,386,586
Basic income (loss) per common share: (in dollars per share)	$ 0.1	$ (0.03)	$ 0.1	$ (0.02)
Diluted income (loss) per common share: (in dollars per share)	$ 0.1	$ (0.03)	$ 0.1	$ (0.02)