Note 11 - Leases - Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating lease cost	$ 330	$ 247	$ 973	$ 865
Short-term lease cost	$ 7	$ 20	$ 51	$ 60
Weighted average remaining lease term (in years) (Year)	5 years 2 months 12 days		5 years 2 months 12 days
Weighted average discount rate	4.10%		4.10%
Minimum [Member]
Range of remaining lease terms (in years) (Year)			6 months
Maximum [Member]
Range of remaining lease terms (in years) (Year)			8 years 7 months 6 days