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Note 7 - Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Net Carrying Amount | $ 19,907 | $ 21,634
Finite-lived, Gross Carrying Amount | 20,835 | 21,015
Finite-lived, Accumulated Amortization | 9,335 | 7,809
Net Carrying Amount, finite-lived | 11,500 | 13,206
Indefinite-lived, Gross Carrying Amount | 8,407 | 8,428
Net Carrying Amount, indefinite-lived | 8,407 | 8,428
Intangible Assets, Gross Carrying Amount | 29,242 | 29,443
Net Carrying Amount | 19,907 | 21,634
Trademarks [Member] |  |
Indefinite-lived, Gross Carrying Amount | 8,407 | 8,428
Net Carrying Amount, indefinite-lived | 8,407 | 8,428
Customer Relationships [Member] |  |
Finite-lived, Gross Carrying Amount | 16,428 | 16,544
Finite-lived, Accumulated Amortization | 7,093 | 6,160
Net Carrying Amount, finite-lived | 9,335 | 10,384
Patented Technology [Member] |  |
Finite-lived, Gross Carrying Amount | 2,912 | 2,950
Finite-lived, Accumulated Amortization | 788 | 569
Net Carrying Amount, finite-lived | 2,124 | 2,381
Patents [Member] |  |
Finite-lived, Gross Carrying Amount | 590 | 590
Finite-lived, Accumulated Amortization | 588 | 585
Net Carrying Amount, finite-lived | 2 | 5
Customer Backlog [Member] |  |
Finite-lived, Gross Carrying Amount | 495 | 521
Finite-lived, Accumulated Amortization | 456 | 85
Net Carrying Amount, finite-lived | 39 | 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
Electronic Test [Member] |  |
Net Carrying Amount | 4,632 | 5,074
Net Carrying Amount | 4,632 | 5,074
Environmental Technologies [Member] |  |
Net Carrying Amount | 862 | 893
Net Carrying Amount | 862 | 893
Process Technologies [Member] |  |
Net Carrying Amount | 14,413 | 15,667
Net Carrying Amount | $ 14,413 | $ 15,667

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