Note 6 - Operating Leases (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Operating Lease, Right-of-Use Asset	$ 2,532	$ 2,681
Operating Lease, Liability	$ 2,797
Operating Lease, Weighted Average Discount Rate, Percent	3.90%
Operating Lease, Weighted Average Remaining Lease Term (Year)	2 years 10 months 24 days
Operating Lease, Expense	$ 262