Note 9 - Leases - Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating lease cost	$ 451	$ 400
Short-term lease cost	$ 3	$ 3
Weighted average remaining lease term (in years) (Year)	4 years 6 months
Weighted average discount rate	5.30%
Minimum [Member]
Range of remaining lease terms (in years) (Year)	6 months
Maximum [Member]
Range of remaining lease terms (in years) (Year)	7 years 1 month 6 days