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Related-party Transactions (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
IFRS Statement [Line Items] |  |  |
Sales of goods | $ 125 | $ 0 | $ 0
Purchase of raw materials | 3,532 | 689 |
Accounts payable | 265 | 1,568 |
Revenue from miscellaneous service | 66 |  |
Miscellaneous fee | 795 | 84 |
Other receivable | 17 |  |
Other payable | 1,641 | 2,572 |
Current receivables due from related parties | 1,217 | 1,200 |
Cheng Mei Materials Technology Corporation [Member] |  |  |
IFRS Statement [Line Items] |  |  |
Purchase of raw materials | 3,469 | 663 |
Accounts payable | 233 | 1,530 |
Miscellaneous fee | 791 | 84 |
Associates [member] |  |  |
IFRS Statement [Line Items] |  |  |
Revenue from miscellaneous service | 63 |  |
Miscellaneous fee | 4 |  |
Other receivable | 14 |  |
ViewsilMicroelectronics (Kunshan) Limited [Member] |  |  |
IFRS Statement [Line Items] |  |  |
Technical service fee | 1,400 | 1,400 | $ 1,800
Other payable | 1,400 | 2,480 |
Other related parties [member] |  |  |
IFRS Statement [Line Items] |  |  |
Sales of goods | 125 |  |
Accounts receivable | 71 |  |
Purchase of raw materials | 63 | 26 |
Accounts payable | 32 | 38 |
Revenue from miscellaneous service | 3 |  |
Other receivable | 3 |  |
Other payable | 241 | 92 |
VST [Member] |  |  |
IFRS Statement [Line Items] |  |  |
Current receivables due from related parties | $ 1,200 | $ 1,200 |

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