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Note 3 - Goodwill and Intangible Assets (Tables) | 9 Months Ended
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Sep. 30, 2022
Notes Tables |
Schedule of Goodwill [Table Text Block] |
(in thousands) |  |  |  |
Carrying amount at December 31, 2021 |  | $ | 57,689 |
Effect of change in currency translation |  |  | (2,838 | )
Carrying amount at September 30, 2022 |  | $ | 54,851 |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
|  |  |  |  |  | September 30, 2022 |  |  | December 31, 2021 |
(in thousands) |  | Average |  |  |  |  |  |  | Accumulated |  |  |  |  |  |  |  |  |  |  | Accumulated |  |  |  |  |
Amortizable intangible assets: |  | Life* |  |  | Gross |  |  | Amortization |  |  | Net |  |  | Gross |  |  | Amortization |  |  | Net |
Distribution agreements/customer relationships |  |  | 7.3 |  |  | $ | 16,716 |  |  | $ | (9,034 | ) |  | $ | 7,682 |  |  | $ | 17,689 |  |  | $ | (8,675 | ) |  | $ | 9,014 |
Existing technology |  |  | 3.5 |  |  |  | 37,744 |  |  |  | (25,748 | ) |  |  | 11,996 |  |  |  | 38,707 |  |  |  | (23,962 | ) |  |  | 14,745 |
Trade names and patents |  |  | 3.8 |  |  |  | 8,162 |  |  |  | (5,583 | ) |  |  | 2,579 |  |  |  | 8,496 |  |  |  | (5,108 | ) |  |  | 3,388 |
Total amortizable intangible assets |  |  |  |  |  | $ | 62,622 |  |  | $ | (40,365 | ) |  | $ | 22,257 |  |  | $ | 64,892 |  |  | $ | (37,745 | ) |  | $ | 27,147 |
Indefinite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 207 |  |  |  |  |  |  |  |  |  |  |  | 238 |
Total intangible assets |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 22,464 |  |  |  |  |  |  |  |  |  |  | $ | 27,385 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
(in thousands) |  |  |  |
2022 (remainder of year) |  | $ | 1,564 |
2023 |  |  | 5,486 |
2024 |  |  | 5,194 |
2025 |  |  | 4,009 |
2026 |  |  | 2,348 |
Thereafter |  |  | 3,656 |
Total |  | $ | 22,257 |

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