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Note 6 - Goodwill and Intangible Assets (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Notes Tables |
Schedule of Changes in Goodwill [Table Text Block] |
Balance - January 1, 2021 |  | $ | 13,738 |
Acquisition of Z-Sciences |  |  | 111 |
Acquisition of Videology |  |  | 4,596 |
Acquisition of Acculogic |  |  | 2,912 |
Impact of foreign currency translation adjustments |  |  | 91 |
Balance - December 31, 2021 |  |  | 21,448 |
Adjustments to preliminary amounts recorded in the fourth quarter of 2021 (see Note 3) |  |  | 451 |
Impact of foreign currency translation adjustments |  |  | (294 | )
Balance - December 31, 2022 |  | $ | 21,605 |
Schedule of Goodwill [Table Text Block] |
|  | December 31, |
|  | 2022 |  |  | 2021 |
Electronic Test |  | $ | 3,369 |  |  | $ | 3,055 |
Environmental Technologies |  |  | 1,817 |  |  |  | 1,817 |
Process Technologies |  |  | 16,419 |  |  |  | 16,576 |
Total Goodwill |  | $ | 21,605 |  |  | $ | 21,448 |
Schedule of Indefinite-Lived Intangible Assets [Table Text Block] |
Balance - January 1, 2021 |  | $ | 6,710 |
Acquisition of Videology |  |  | 850 |
Acquisition of Acculogic |  |  | 878 |
Impact of foreign currency translation adjustments |  |  | (10 | )
Balance - December 31, 2021 |  |  | 8,428 |
Adjustments to preliminary amounts recorded in the fourth quarter of 2021 (see Note 3) |  |  | 20 |
Impact of foreign currency translation adjustments |  |  | (79 | )
Balance - December 31, 2022 |  |  | 8,369 |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
Balance - January 1, 2021 |  | $ | 5,711 |
Acquisition of Z-Sciences |  |  | 389 |
Acquisition of Videology |  |  | 4,396 |
Acquisition of Acculogic |  |  | 4,196 |
Impact of foreign currency translation adjustments |  |  | (46 | )
Amortization |  |  | (1,440 | )
Balance - December 31, 2021 |  |  | 13,206 |
Adjustments to preliminary amounts recorded in the fourth quarter of 2021 (see Note 3) |  |  | 29 |
Impact of foreign currency translation adjustments |  |  | (351 | )
Amortization |  |  | (2,694 | )
Balance - December 31, 2022 |  | $ | 10,190 |
Schedule Of Intangible Assets [Table Text Block] |
|  | 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 |
|  | December 31, 2021 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |
Finite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 16,544 |  |  | $ | 6,160 |  |  | $ | 10,384 |
Technology |  |  | 2,950 |  |  |  | 569 |  |  |  | 2,381 |
Patents |  |  | 590 |  |  |  | 585 |  |  |  | 5 |
Backlog |  |  | 521 |  |  |  | 85 |  |  |  | 436 |
Software |  |  | 270 |  |  |  | 270 |  |  |  | - |
Trade name |  |  | 140 |  |  |  | 140 |  |  |  | - |
Total finite-lived intangible assets |  |  | 21,015 |  |  |  | 7,809 |  |  |  | 13,206 |
Indefinite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |
Trademarks |  |  | 8,428 |  |  |  | - |  |  |  | 8,428 |
Total intangible assets |  | $ | 29,443 |  |  | $ | 7,809 |  |  | $ | 21,634 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
2023 |  | $ | 2,090 |
2024 |  | $ | 1,968 |
2025 |  | $ | 1,759 |
2026 |  | $ | 1,150 |
2027 |  | $ | 731 |

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