Note 12 - Net (Loss) Per Share - Earnings Per Share Reconciliation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Numerator for basic and diluted earnings per share, net (loss) available to common shareholders	$ (321,634)	$ (2,906,183)
Denominator:
Denominator for basic (loss) per share, weighted average shares outstanding (in shares)	20,028,850	15,428,798
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)	20,028,850	15,428,798
Basic (loss) per common share (in dollars per share)	$ (0.02)	$ (0.19)
Diluted (loss) per common share and common share equivalent (in dollars per share)	$ (0.02)	$ (0.19)