Note 9 - Leases - Lease Expense and Other Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating lease expense	$ 3,333	$ 3,320	$ 2,839
Operating leases (Year)	13 years 2 months 12 days	13 years 10 months 24 days
Short-term lease expense	$ 0	$ 0	17
Operating Lease, Weighted Average Discount Rate, Percent	3.50%	3.60%
Variable lease expense	$ 497	$ 425	413
Right-of-use assets obtained in exchange for operating lease liabilities	3,267	3,239
Total lease expense	$ 3,830	$ 3,745	$ 3,269