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Long-term bank loans (Tables) | 12 Months Ended
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Dec. 31, 2019
Statement [LineItems] |
Summary of Bank Loans |
Type of loans |  | Period and payment term |  | December 31, 2018 |  |  | December 31, 2019 |
|  |  |  | NT$000 |  |  | NT$000 |
Syndicated bank loan |  | Borrowing period is from May 30, 2018 to May 30, 2023; interest is repayable monthly; principal is repayable semi-annually from November 30, 2018 |  |  | 9,822,000 |  |  |  | 9,066,000 |
Less: Fee on syndicated bank loan |  |  |  |  | (32,482 | ) |  |  | (24,355 | )
Less: Current portion (fee included) |  |  |  |  | (747,422 | ) |  |  | (748,419 | )
|  |  |  |  | 9,042,096 |  |  |  | 8,293,226 |
Interest rate range |  |  |  |  | 1.7895 | % |  |  | 1.7895 | %
Unused credit lines of long-term bank loans NT$000 |  |  |  |  | 1,800,000 |  |  |  | 1,800,000 |

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