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Inventories (Tables) | 12 Months Ended
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Dec. 31, 2018
Text block [abstract] |
Summary of Inventories |
|  | December 31
|  | 2017 |  | 2018
|  | NT$ |  | NT$ |  | US$ (Note 4)
Finished goods |  | $ | 6,740,816 |  |  | $ | 7,680,083 |  |  | $ | 250,901 |
Work in process |  |  | 3,452,332 |  |  |  | 3,195,478 |  |  |  | 104,393 |
Raw materials |  |  | 12,625,502 |  |  |  | 23,250,801 |  |  |  | 759,582 |
Supplies |  |  | 894,196 |  |  |  | 1,892,194 |  |  |  | 61,816 |
Raw materials and supplies in transit |  |  | 548,065 |  |  |  | 608,895 |  |  |  | 19,892 |
|  | $ | 24,260,911 |  |  | $ | 36,627,451 |  |  | $ | 1,196,584 |

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