| December 31 | ||||||||||||
| 2016 | 2017 | |||||||||||
| NT$ | NT$ | US$ (Note 4) | ||||||||||
| Working capital bank loans | ||||||||||||
| Syndicated bank loans - repayable through January 2018 to July 2018, annual interest rates were 2.55% and 2.61% -2.70% as of December 31, 2016 and 2017, respectively | $ | 9,223,500 | $ | 4,761,600 | $ | 160,647 | ||||||
| Others - repayable through January 2018 to December 2019, annual interest rates were 0.74%-4.48% and 0.93%-2.10% as of December 31, 2016 and 2017, respectively | 36,009,917 | 22,441,947 | 757,151 | |||||||||
| Mortgage loans | ||||||||||||
| Repayable through July 2018 to June 2023, annual interest rates were both 4.95%-5.39% as of December 31, 2016 and 2017 | 4,390,003 | 4,705,149 | 158,743 | |||||||||
| 49,623,420 | 31,908,696 | 1,076,541 | ||||||||||
| Less: unamortized arrangement fee | 7,198 | 1,200 | 40 | |||||||||
| 49,616,222 | 31,907,496 | 1,076,501 | ||||||||||
| Less: current portion | 6,567,565 | 6,761,625 | 228,125 | |||||||||
| $ | 43,048,657 | $ | 25,145,871 | $ | 848,376 | |||||||