Note 5 - Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Intangible assets, net	$ 27,877	$ 16,596
Finite-lived, Gross Carrying Amount	32,397	20,801
Finite-lived, Accumulated Amortization	15,019	12,603
Net Carrying Amount, finite-lived	17,378	8,198
Indefinite-lived, Gross Carrying Amount	10,499	8,398
Net Carrying Amount, indefinite-lived	10,499	8,398
Intangible Assets, Gross Carrying Amount	42,896	29,199
Total intangible assets	15,019	12,603
Total intangible assets	27,877	16,596
Trademarks [Member]
Indefinite-lived, Gross Carrying Amount	10,499	8,398
Net Carrying Amount, indefinite-lived	10,499	8,398
Customer Relationships [Member]
Finite-lived, Gross Carrying Amount	23,908	16,407
Finite-lived, Accumulated Amortization	11,061	9,687
Net Carrying Amount, finite-lived	12,847	6,720
Total intangible assets	11,061	9,687
Patented Technology [Member]
Finite-lived, Gross Carrying Amount	5,877	2,895
Finite-lived, Accumulated Amortization	1,863	1,417
Net Carrying Amount, finite-lived	4,014	1,478
Total intangible assets	1,863	1,417
Patents [Member]
Finite-lived, Gross Carrying Amount	590	590
Finite-lived, Accumulated Amortization	590	590
Net Carrying Amount, finite-lived	0	0
Total intangible assets	590	590
Customer Backlog [Member]
Finite-lived, Gross Carrying Amount	1,612	499
Finite-lived, Accumulated Amortization	1,095	499
Net Carrying Amount, finite-lived	517	0
Total intangible assets	1,095	499
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
Total intangible assets	270	270
Trade Names [Member]
Finite-lived, Gross Carrying Amount	140	140
Finite-lived, Accumulated Amortization	140	140
Net Carrying Amount, finite-lived	0	0
Total intangible assets	140	140
Electronic Test [Member]
Intangible assets, net	16,124	3,728
Total intangible assets	16,124	3,728
Environmental Technologies [Member]
Intangible assets, net	778	794
Total intangible assets	778	794
Process Technologies [Member]
Intangible assets, net	10,975	12,074
Total intangible assets	$ 10,975	$ 12,074