Note 13 - Commitments (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Off-Balance-Sheet, Credit Loss, Liability	$ 654,000		$ 654,000		$ 1,200,000
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)	$ 144,000	$ 28,000	$ 503,000	$ 162,000