Note 5 - Leases - Leases Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Operating lease costs	$ 852	$ 656	$ 2,327	$ 2,061
Other	480	454	1,572	1,259
Total lease costs	1,332	1,110	3,899	3,320
Operating cash flows for operating leases	629	649	2,267	2,115
ROU assets obtained in exchange for new operating lease liabilities	$ 2,086	$ 13	$ 6,921	$ 1,071
Weighted-average remaining lease term (in years) (Year)	4 years 9 months 18 days		4 years 9 months 18 days		2 years 1 month 6 days
Weighted-average discount rate	4.20%		4.20%		2.10%