Note 5 - Goodwill and Other Intangible Assets - Components of Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Gross carrying value	$ 70,854	$ 74,243
Accumulated amortization	18,144	15,338
Net carrying value	52,710	58,905
Product Technology and Intellectual Property [Member]
Gross carrying value	29,549	29,951
Accumulated amortization	10,473	7,947
Net carrying value	19,076	22,004
Trademarks, Tradenames and Licenses [Member]
Gross carrying value	3,647	4,000
Accumulated amortization	1,139	1,094
Net carrying value	2,508	2,906
Customer Relationships [Member]
Gross carrying value	36,197	38,525
Accumulated amortization	5,674	5,424
Net carrying value	30,523	33,101
Other Intangible Assets [Member]
Gross carrying value	1,461	1,767
Accumulated amortization	858	873
Net carrying value	$ 603	$ 894