Note 10 - Lease Commitments (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Lease, Expense	$ 1,355,000	$ 999,000	$ 904,000
Operating Lease, Payments	$ 988,000	$ 859,000	$ 732,000
Lessee, Operating Lease, Remaining Lease Term (Year)	9 years 2 months 12 days	8 years 7 months 6 days
Lessee, Operating Lease, Discount Rate	3.07%	1.71%
Other Assets [Member]
Operating Lease, Right-of-Use Asset	$ 8,700,000	$ 6,000,000
Other Liabilities [Member]
Operating Lease, Liability	$ 8,921,000	$ 6,100,000