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Bonds Payable (Tables) | 12 Months Ended
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Dec. 31, 2018
Text block [abstract] |
Summary of Bonds Payable |
|  | December 31
|  | 2017 |  | 2018
|  | NT$ |  | NT$ |  | US$ (Note 4)
Unsecured domestic bonds |  |  |  |  |  |
Repayable at maturity in January 2021 and interest due annually with annual interest rate at 1.30% |  | $ | 7,000,000 |  |  | $ | 7,000,000 |  |  | $ | 228,683 |
Repayable at maturity in January 2023 and interest due annually with annual interest rate at 1.50% |  |  | 2,000,000 |  |  |  | 2,000,000 |  |  |  | 65,338 |
Repayable at maturity in January 2022 and interest due annually with annual interest rate at 1.25% |  |  | 3,700,000 |  |  |  | 3,700,000 |  |  |  | 120,876 |
Repayable at maturity in January 2024 and interest due annually with annual interest rate at 1.45% |  |  | 4,300,000 |  |  |  | 4,300,000 |  |  |  | 140,477 |
|  | December 31
|  | 2017 |  | 2018
|  | NT$ |  | NT$ |  | US$ (Note 4)
Unsecured convertible overseas bonds |  |  |  |  |  |
US$200,000 thousand (linked to New Taiwan dollar) |  | $ | 6,185,600 |  |  | $ | - |  |  | $ | - |
|  |  | 23,185,600 |  |  |  | 17,000,000 |  |  |  | 555,374 |
Less: discounts on bonds payable |  |  | 42,820 |  |  |  | 14,064 |  |  |  | 459 |
|  |  | 23,142,780 |  |  |  | 16,985,936 |  |  |  | 554,915 |
Less: current portion |  |  | 6,161,197 |  |  |  | - |  |  |  | - |
|  | $ | 16,981,583 |  |  | $ | 16,985,936 |  |  | $ | 554,915 |

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