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Equity Method Investments (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Nov. 30, 2020
IFRS Statement [Line Items] |  |  |
Carrying amount | $ 3,302 | $ 3,983 |
Holding | 100.00% |  |
Ganzin Technology Corp. |  |  |
IFRS Statement [Line Items] |  |  |
Principal Activities | Eye tracking chip and module |  |
Place of Incorporation and operation | Taipei, Taiwan |  |
Carrying amount | $ 0 | $ 577 |
Holding | 42.01% | 45.64% |
Iris Optronics Co., Ltd. |  |  |
IFRS Statement [Line Items] |  |  |
Principal Activities | E-paper manufacturing and sales |  |
Place of Incorporation and operation | Tainan, Taiwan |  |
Carrying amount | $ 174 | $ 61 |
Holding | 6.25% | 1.25% |
Viewsil Microelectronics (Kunshan) Limited |  |  |
IFRS Statement [Line Items] |  |  |
Principal Activities | IC design and sales |  |
Place of Incorporation and operation | Kunshan, China |  |
Carrying amount | $ 2,671 | $ 2,621 |
Holding | 49.00% | 49.00% |
Guangzhou Pixtalks Information Technology Co., Ltd. |  |  |
IFRS Statement [Line Items] |  |  |
Principal Activities | 3D structured light module |  |
Place of Incorporation and operation | Guangzhou, China |  |
Carrying amount | $ 457 | $ 724 | $ 758
Holding | 22.50% | 25.00% |

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