Note 19 - Related Party Transactions - Loans to Executive Officers and Directors (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Balance, beginning of year	$ 4,356,981	$ 4,030,844	$ 5,797,809
New Loans	161,000	1,815,200	500,000
Repayments	(425,211)	(1,489,063)	(2,266,965)
Balance, end of year	$ 4,092,770	$ 4,356,981	$ 4,030,844