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Intangible Assets, Net | 12 Months Ended
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Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets, Net | Note 8 - Intangible Assets, Net
|  | December 31, |
|  | 2022 |  |  | 2021 |
|  | U.S. Dollars (in thousands) |
Patent registration costs |  |  | 2,135 |  |  |  | 2,038 |
Accumulated amortization |  |  | 1,538 |  |  |  | 1,428 |
Total intangible assets, net |  |  | 597 |  |  |  | 610 |
Patent registration costs are amortized over their estimated useful life of 10 years. Amortization expense for the years ended December 31, 2022, 2021 and 2020 amounted to $110, $110 and $98, respectively. As of December 31, 2022, the estimated amortization expenses of intangible assets for the years 2023 to 2027 is as follows:
Year ended December 31, |  | U.S. Dollars (in thousands) |
2023 |  |  | 107 |
2024 |  |  | 99 |
2025 |  |  | 92 |
2026 |  |  | 78 |
2027 |  |  | 68 |

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -URI https://asc.fasb.org/subtopic&trid=2144471 + Details
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