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Note 3 - Goodwill and Intangible Assets (Tables) | 9 Months Ended
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Sep. 30, 2021
Notes Tables |
Schedule of Goodwill [Table Text Block] |
(in thousands) |  |  |  |
Carrying amount at December 31, 2020 |  | $ | 58,590 |
Effect of change in currency translation |  |  | (603 | )
Carrying amount at September 30, 2021 |  | $ | 57,987 |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
|  |  |  |  |  | September 30, 2021 |  |  | December 31, 2020 |
|  | Weighted |  | (in thousands) |
Amortizable intangible assets: |  | Average Life* |  |  | Gross |  |  | Accumulated Amortization |  |  | Net |  |  | Gross |  |  | Accumulated Amortization |  |  | Net |
Distribution agreements/customer relationships |  |  | 8.1 |  |  | $ | 17,874 |  |  | $ | (8,482 | ) |  | $ | 9,392 |  |  | $ | 18,237 |  |  | $ | (7,746 | ) |  | $ | 10,491 |
Existing technology |  |  | 4.4 |  |  |  | 38,861 |  |  |  | (23,179 | ) |  |  | 15,682 |  |  |  | 38,761 |  |  |  | (20,674 | ) |  |  | 18,087 |
Trade names and patents |  |  | 4.7 |  |  |  | 8,559 |  |  |  | (4,935 | ) |  |  | 3,624 |  |  |  | 8,681 |  |  |  | (4,362 | ) |  |  | 4,319 |
Total amortizable intangible assets |  |  |  |  |  | $ | 65,294 |  |  | $ | (36,596 | ) |  | $ | 28,698 |  |  | $ | 65,679 |  |  | $ | (32,782 | ) |  | $ | 32,897 |
Indefinite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 243 |  |  |  |  |  |  |  |  |  |  |  | 254 |
Total intangible assets |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 28,941 |  |  |  |  |  |  |  |  |  |  | $ | 33,151 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
|  | Amortization |
Year Ending December 31, |  | Expense |
|  | (in thousands) |
2021 (remainder of year) |  | $ | 1,456 |
2022 |  |  | 5,791 |
2023 |  |  | 5,684 |
2024 |  |  | 5,379 |
2025 |  |  | 4,271 |
Thereafter |  |  | 6,117 |
Total |  | $ | 28,698 |

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