Note 11 - Earnings Per Common Share - Summary of Earnings Per Share Calculation (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Net Income	$ 1,065,875	$ 3,143,417
Weighted average shares of common stock outstanding - Basic (in shares)	3,433,995	3,392,839
Net Income Per Common Share - Basic (in dollars per share)	$ 0.31	$ 0.93
Warrants, Options and Convertible Notes (in shares)	0	881
Diluted (in shares)	3,433,995	3,393,720
Net Income Per Common Share - Diluted (in dollars per share)	$ 0.31	$ 0.93