Note 6 - Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-lived, Gross Carrying Amount	$ 21,015	$ 12,080
Finite-lived, Accumulated Amortization	7,809	6,369
Net Carrying Amount, finite-lived	13,206	5,711	$ 6,944
Indefinite-lived, Gross Carrying Amount	8,428	6,710
Net Carrying Amount, indefinite-lived	8,428	6,710
Intangible Assets, Gross Carrying Amount	29,443	18,790
Net Carrying Amount	21,634	12,421
Trademarks [Member]
Indefinite-lived, Gross Carrying Amount	8,428	6,710
Net Carrying Amount, indefinite-lived	8,428	6,710
Customer Relationships [Member]
Finite-lived, Gross Carrying Amount	16,544	10,480
Finite-lived, Accumulated Amortization	6,160	4,912
Net Carrying Amount, finite-lived	10,384	5,568
Patented Technology [Member]
Finite-lived, Gross Carrying Amount	2,950	600
Finite-lived, Accumulated Amortization	569	477
Net Carrying Amount, finite-lived	2,381	123
Patents [Member]
Finite-lived, Gross Carrying Amount	590	590
Finite-lived, Accumulated Amortization	585	570
Net Carrying Amount, finite-lived	5	20
Customer Backlog [Member]
Finite-lived, Gross Carrying Amount	521
Finite-lived, Accumulated Amortization	85
Net Carrying Amount, finite-lived	436
Computer Software, Intangible Asset [Member]
Finite-lived, Gross Carrying Amount	270	270
Finite-lived, Accumulated Amortization	270	270
Net Carrying Amount, finite-lived	0	0
Trade Names [Member]
Finite-lived, Gross Carrying Amount	140	140
Finite-lived, Accumulated Amortization	140	140
Net Carrying Amount, finite-lived	$ 0	$ 0