Note 11 - Earnings Per Common Share - Summary of Earnings Per Share Calculation (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net Income	$ 1,254,545	$ 1,197,877	$ 3,491,684	$ 5,588,599
Weighted average shares of common stock outstanding - Basic (in shares)	3,476,087	3,408,906	3,458,437	3,403,609
Net Income Per Common Share - Basic (in dollars per share)	$ 0.36	$ 0.35	$ 1.01	$ 1.64
Warrants, Options and Convertible Notes (in shares)	0	913	0	898
Diluted (in shares)	3,476,087	3,409,819	3,458,437	3,404,507
Net Income Per Common Share - Diluted (in dollars per share)	$ 0.36	$ 0.35	$ 1.01	$ 1.64