Note 12 - Related Parties - Loans Outstanding to Directors and Executive Officers (Details) - Directors and Executive Officers [Member] - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Beginning balance	$ 108,042,000	$ 104,043,000
New loans	2,542,000	13,823,000
Repayments	(22,912,000)	(9,824,000)
Ending balance	$ 87,672,000	$ 108,042,000