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Note 4 - Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Schedule of Changes in Goodwill [Table Text Block] |
Balance - January 1, 2022 |  | $ | 21,448 |
Adjustments to preliminary amounts recorded in the fourth quarter of 2021 (see Note 3 to the consolidated financial statements in our 2022 Form 10-K) |  |  | 451 |
Impact of foreign currency translation adjustments |  |  | (294 | )
Balance - December 31, 2022 |  |  | 21,605 |
Impact of foreign currency translation adjustments |  |  | 123 |
Balance - December 31, 2023 |  | $ | 21,728 |
Schedule Of Intangible Assets [Table Text Block] |
|  | December 31, |
|  | 2023 |  |  | 2022 |
Electronic Test |  | $ | 3,436 |  |  | $ | 3,369 |
Environmental Technologies |  |  | 1,817 |  |  |  | 1,817 |
Process Technologies |  |  | 16,475 |  |  |  | 16,419 |
Total Goodwill |  | $ | 21,728 |  |  | $ | 21,605 |
|  | December 31, 2023 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |
Finite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 16,407 |  |  | $ | 9,687 |  |  | $ | 6,720 |
Technology |  |  | 2,895 |  |  |  | 1,417 |  |  |  | 1,478 |
Patents |  |  | 590 |  |  |  | 590 |  |  |  | - |
Backlog |  |  | 499 |  |  |  | 499 |  |  |  | - |
Software |  |  | 270 |  |  |  | 270 |  |  |  | - |
Trade name |  |  | 140 |  |  |  | 140 |  |  |  | - |
Total finite-lived intangible assets |  |  | 20,801 |  |  |  | 12,603 |  |  |  | 8,198 |
Indefinite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |
Trademarks |  |  | 8,398 |  |  |  | - |  |  |  | 8,398 |
Total intangible assets |  | $ | 29,199 |  |  | $ | 12,603 |  |  | $ | 16,596 |
|  | December 31, 2022 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |
Finite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 16,313 |  |  | $ | 7,990 |  |  | $ | 8,323 |
Technology |  |  | 2,855 |  |  |  | 988 |  |  |  | 1,867 |
Patents |  |  | 590 |  |  |  | 590 |  |  |  | - |
Backlog |  |  | 492 |  |  |  | 492 |  |  |  | - |
Software |  |  | 270 |  |  |  | 270 |  |  |  | - |
Trade name |  |  | 140 |  |  |  | 140 |  |  |  | - |
Total finite-lived intangible assets |  |  | 20,660 |  |  |  | 10,470 |  |  |  | 10,190 |
Indefinite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |
Trademarks |  |  | 8,369 |  |  |  | - |  |  |  | 8,369 |
Total intangible assets |  | $ | 29,029 |  |  | $ | 10,470 |  |  | $ | 18,559 |
Schedule of Indefinite-Lived Intangible Assets [Table Text Block] |
Balance - January 1, 2022 |  | $ | 8,428 |
Adjustments to preliminary amounts recorded in the fourth quarter of 2021 (see Note 3 to the consolidated financial statements in our 2022 Form 10-K) |  |  | 20 |
Impact of foreign currency translation adjustments |  |  | (79 | )
Balance - December 31, 2022 |  |  | 8,369 |
Impact of foreign currency translation adjustments |  |  | 29 |
Balance - December 31, 2023 |  | $ | 8,398 |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
Balance - January 1, 2022 |  | $ | 13,206 |
Adjustments to preliminary amounts recorded in the fourth quarter of 2021 (see Note 3 to the consolidated financial statements in our 2022 Form 10-K) |  |  | 29 |
Impact of foreign currency translation adjustments |  |  | (351 | )
Amortization |  |  | (2,694 | )
Balance - December 31, 2022 |  |  | 10,190 |
Impact of foreign currency translation adjustments |  |  | 102 |
Amortization |  |  | (2,094 | )
Balance - December 31, 2023 |  | $ | 8,198 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
2024 |  | $ | 1,973 |
2025 |  | $ | 1,774 |
2026 |  | $ | 1,163 |
2027 |  | $ | 667 |
2028 |  | $ | 534 |

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