Note 6 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Operating lease costs	$ 897	$ 716
Other	550	538
Total lease costs	1,447	1,254
Operating cash flows for operating leases	673	864
ROU assets obtained in exchange for new operating lease liabilities	$ 1,462	$ 4,545
Weighted-average remaining lease term (in years) (Year)	4 years 3 months 18 days		4 years 8 months 12 days
Weighted-average discount rate	4.50%		4.30%