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v3.23.2

Segment Information and Foreign Operations - Segment and Geographical Information (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 USD ($) | Jun. 30, 2022 USD ($) | Jun. 30, 2023 USD ($) segment | Jun. 30, 2022 USD ($) | Dec. 31, 2022 USD ($)
Segment Information and Foreign Operations |  |  |  |  |
Number of operating segments | segment |  |  | 1 |  |
Net revenues reported for products shipped to customers in corresponding geographic region |  |  |  |  |
Revenue | $ 18,595 | $ 39,487 | $ 38,000 | $ 79,140 |
Long-lived assets by geographic region, net of depreciation: |  |  |  |  |
Long-lived assets | 160,145 |  | 160,145 |  | $ 162,778
China |  |  |  |  |
Long-lived assets by geographic region, net of depreciation: |  |  |  |  |
Long-lived assets | 159,927 |  | 159,927 |  | 162,432
North America (primarily the United States) |  |  |  |  |
Long-lived assets by geographic region, net of depreciation: |  |  |  |  |
Long-lived assets | 218 |  | 218 |  | $ 346
Reportable Geographical Components |  |  |  |  |
Net revenues reported for products shipped to customers in corresponding geographic region |  |  |  |  |
Revenue | 18,595 | 39,487 | 38,000 | 79,140 |
Reportable Geographical Components | China |  |  |  |  |
Net revenues reported for products shipped to customers in corresponding geographic region |  |  |  |  |
Revenue | 10,289 | 18,445 | 18,391 | 35,925 |
Reportable Geographical Components | Taiwan |  |  |  |  |
Net revenues reported for products shipped to customers in corresponding geographic region |  |  |  |  |
Revenue | 1,407 | 7,044 | 3,878 | 13,903 |
Reportable Geographical Components | Japan |  |  |  |  |
Net revenues reported for products shipped to customers in corresponding geographic region |  |  |  |  |
Revenue | 1,396 | 2,718 | 2,931 | 5,525 |
Reportable Geographical Components | Asia Pacific (excluding China, Taiwan and Japan) |  |  |  |  |
Net revenues reported for products shipped to customers in corresponding geographic region |  |  |  |  |
Revenue | 737 | 662 | 1,828 | 2,418 |
Reportable Geographical Components | Europe (primarily Germany) |  |  |  |  |
Net revenues reported for products shipped to customers in corresponding geographic region |  |  |  |  |
Revenue | 3,015 | 5,299 | 6,585 | 11,693 |
Reportable Geographical Components | North America (primarily the United States) |  |  |  |  |
Net revenues reported for products shipped to customers in corresponding geographic region |  |  |  |  |
Revenue | $ 1,751 | $ 5,319 | $ 4,387 | $ 9,676 |

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