Note 5 - Goodwill and Other Intangible Assets - Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Balance, goodwill	[1]			$ 85,048
Balance, intangibles				4,627
Amortization, intangibles		$ (310)	$ (361)	(960)	$ (1,113)
Balance, goodwill		85,048	$ 85,048	85,048	$ 85,048
Balance, intangibles		$ 3,667		$ 3,667

[1] Derived from audited consolidated financial statements