Note 11 - Net (Loss) Per Share - Earnings Per Share Reconciliation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Numerator:
Numerator for basic and diluted earnings per share, net (loss) available to common shareholders	$ (5,483,244)	$ (321,634)
Denominator:
Denominator for basic (loss) per share, weighted average shares outstanding (in shares)	20,379,386	20,028,850
Effect of dilutive securities-stock options and restricted awards (in shares)	0	0
Denominator for diluted (loss) per share, adjusted weighted average shares and assumed conversion (in shares)	20,379,386	20,028,850
Basic (loss) per common share (in dollars per share)	$ (0.27)	$ (0.02)
Diluted (loss) per common share and common share equivalent (in dollars per share)	$ (0.27)	$ (0.02)