Note 5 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Operating lease costs	$ 1,108	$ 897
Others	769	550
Total lease costs	1,877	1,447
Operating cash flows for operating leases	1,000	673
ROU assets obtained in exchange for new operating lease liabilities	$ 2,644	$ 1,462
Weighted-average remaining lease term (in years) (Year)	10 years 6 months		11 years 6 months
Weighted-average discount rate	5.60%		5.50%