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Note R - Segment and Geographic Information (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Revenue from External Customers by Geographic Areas [Table Text Block] |
|  | Year ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 14,633 |  |  | $ | 18,380 |  |  | $ | 9,795 |
Taiwan |  |  | 99,201 |  |  |  | 131,076 |  |  |  | 97,776 |
China |  |  | 97,731 |  |  |  | 85,167 |  |  |  | 83,301 |
|  | $ | 211,565 |  |  | $ | 234,623 |  |  | $ | 190,872 |
Long-lived Assets by Geographic Areas [Table Text Block] |
|  | As of December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Long-lived assets: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 87,709 |  |  | $ | 90,999 |  |  | $ | 94,507 |
Taiwan |  |  | 63,644 |  |  |  | 71,080 |  |  |  | 73,816 |
China |  |  | 108,509 |  |  |  | 108,575 |  |  |  | 97,687 |
|  | $ | 259,862 |  |  | $ | 270,654 |  |  | $ | 266,010 |

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- Definition Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph a -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 + Details
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