Note 11 - Commitments and Contingencies (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Provision for Credit Losses on Unfunded Commitments	$ (195,000)	$ 1,200,000	$ 322,000	$ 1,670,000
Off-Balance-Sheet, Credit Loss, Liability, Ending Balance	$ 7,590,000		$ 7,590,000		$ 7,280,000