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Inventories (Tables) | 12 Months Ended
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Dec. 31, 2021
Text block [abstract] |
Summary of Inventories |
|  | December 31, 2020 |
|  | Cost |  |  | Allowance for impairment losses |  |  | Carrying amount |
|  | NT$000 |  |  | NT$000 |  |  | NT$000 |
Raw materials |  |  | 2,181,890 |  |  |  | (79,815 | ) |  |  | 2,102,075 |
|  | December 31, 2021 |
|  | Cost |  |  | Allowance for impairment losses |  |  | Carrying amount |
|  | NT$000 |  |  | NT$000 |  |  | NT$000 |
Raw materials |  |  | 3,328,763 |  |  |  | (121,586 | ) |  |  | 3,207,177 |
Cost of Inventories Recognized as an Expense | The cost of inventories recognized as an expense for the year:
|  | Year ended December 31, |
|  | 2019 |  |  | 2020 |  |  | 2021 |
|  | NT$000 |  |  | NT$000 |  |  | NT$000 |
Cost of revenue |  |  | 16,372,032 |  |  |  | 17,957,568 |  |  |  | 20,103,735 |
Loss on abandonment |  |  | 12,369 |  |  |  | 5,323 |  |  |  | 552 |
Allowance for inventory valuation and obsolescence loss |  |  | 27,341 |  |  |  | 16,317 |  |  |  | 41,770 |
|  |  | 16,411,742 |  |  |  | 17,979,208 |  |  |  | 20,146,057 |

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