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Segment, Product and Geographic Information - Carrying values of the Company's tangible long-lived assets (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Segment, Product and Geographic Information |  |
Property, plant and equipment. | $ 130,109 | $ 126,138
Taiwan |  |
Segment, Product and Geographic Information |  |
Property, plant and equipment. | 126,993 | 123,361
US operations |  |
Segment, Product and Geographic Information |  |
Property, plant and equipment. | 1,396 | 1,595
China |  |
Segment, Product and Geographic Information |  |
Property, plant and equipment. | 1,442 | 834
Korea |  |
Segment, Product and Geographic Information |  |
Property, plant and equipment. | 239 | 245
Japan |  |
Segment, Product and Geographic Information |  |
Property, plant and equipment. | $ 39 | $ 103

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- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. Note that right-of-use assets are not included. [Contrast: Property, plant and equipment including right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_a&doctype=Standard -URIDate 2023-03-23 + Details
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