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Intangible Assets | 12 Months Ended
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Dec. 31, 2021
Intangible Assets |
Intangible Assets | Note 7 – Intangible Assets Intangible asset activity for the two years ended December 31, 2021 is detailed in the following table; ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​ | ​
in thousands |  | Acquired Technology |  | Customer Relationships |  | Other |  | Total Intangible Assets
Net balance at December 31, 2019 | ​ | $ | 5,454 | ​ | ​ | 26,884 | ​ | ​ | 3,871 | ​ | ​ | 36,209
Additions | ​ | ​ | 46 | ​ | ​ | — | ​ | ​ | 87 | ​ | ​ | 133
Disposals | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (58) | ​ | ​ | (58)
Net foreign currency translation | ​ |  | 53 | ​ |  | (58) | ​ |  | 39 | ​ |  | 34
Amortization expense | ​ |  | (3,276) | ​ |  | (3,626) | ​ |  | (2,220) | ​ |  | (9,122)
Net balance at December 31, 2020 | ​ | ​ | 2,277 | ​ | ​ | 23,200 | ​ | ​ | 1,719 | ​ | ​ | 27,196
Additions | ​ |  | 15 | ​ | ​ | — | ​ | ​ | 20 | ​ |  | 35
Disposals | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (21) | ​ | ​ | (21)
Net foreign currency translation | ​ |  | 2 | ​ | ​ | (46) | ​ | ​ | (8) | ​ |  | (52)
Amortization expense | ​ |  | (1,541) | ​ | ​ | (3,993) | ​ | ​ | (354) | ​ |  | (5,888)
Net balance at December 31, 2021 | ​ | $ | 753 | ​ | $ | 19,161 | ​ | $ | 1,356 | ​ | $ | 21,270
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2021 balance at cost | ​ | $ | 43,034 | ​ | $ | 39,814 | ​ | $ | 13,549 | ​ | $ | 96,397
Accumulated amortization | ​ |  | (42,281) | ​ |  | (20,653) | ​ |  | (12,193) | ​ |  | (75,127)
Net balance at December 31, 2021 | ​ | $ | 753 | ​ | $ | 19,161 | ​ | $ | 1,356 | ​ | $ | 21,270
​ Certain intangible assets are denominated in local currencies and are subject to currency fluctuations. Expected amortization of the intangible assets for the years ended: ​
​ | ​ | ​ | ​
December 31, 2022 |  | $ | 4,678
December 31, 2023 | ​ |  | 4,049
December 31, 2024 | ​ |  | 4,046
December 31, 2025 | ​ |  | 3,046
December 31, 2026 | ​ |  | 2,327
Thereafter | ​ |  | 2,368
Subject to amortization | ​ |  | 20,514
Trademarks | ​ |  | 756
Total intangible assets | ​ | $ | 21,270
​

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