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Bonds Payable (Tables) | 12 Months Ended
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Dec. 31, 2017
Text block1 [abstract] |
Summary of Bonds Payable |
|  | December 31
|  | 2016 |  | 2017
|  | 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 |  |  | $ | 236,168 |
Repayable at maturity in January 2023 and interest due annually with annual interest rate at 1.50% |  |  | 2,000,000 |  |  |  | 2,000,000 |  |  |  | 67,476 |
Repayable at maturity in January 2022 and interest due annually with annual interest rate at 1.25% |  |  | - |  |  |  | 3,700,000 |  |  |  | 124,831 |
Repayable at maturity in January 2024 and interest due annually with annual interest rate at 1.45% |  |  | - |  |  |  | 4,300,000 |  |  |  | 145,074 |
Unsecured convertible overseas bonds |  |  |  |  |  |  |  |  |  |  |  |
US$400,000 thousand |  |  | 12,900,000 |  |  |  | - |  |  |  | - |
US$200,000 thousand (linked to New Taiwan dollar) |  |  | 6,185,600 |  |  |  | 6,185,600 |  |  |  | 208,691 |
Secured overseas bonds - secured by the Company |  |  |  |  |  |  |  |  |  |  |  |
US$300,000 thousand, interest due semi-annually with annual interest rate at 2.125% and has been repaid in July 2017 |  |  | 9,675,000 |  |  |  | - |  |  |  | - |
|  |  | 37,760,600 |  |  |  | 23,185,600 |  |  |  | 782,240 |
Less: discounts on bonds payable |  |  | 760,697 |  |  |  | 42,820 |  |  |  | 1,444 |
|  |  | 36,999,903 |  |  |  | 23,142,780 |  |  |  | 780,796 |
Less: current portion |  |  | 9,658,346 |  |  |  | 6,161,197 |  |  |  | 207,868 |
|  | $ | 27,341,557 |  |  | $ | 16,981,583 |  |  | $ | 572,928 |

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