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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2021
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Summary of Earnings and Weighted Average Number of Ordinary Shares Outstanding in Computation of Earnings Per Share | The earnings and weighted average number of ordinary shares outstanding in the computation of earnings per share were as follows:
Net profit for the year |  |  |  |  |  |  |  |  |  |  |  |
|  | For the Year Ended December 31 |
|  | 2019 |  |  | 2020 |  |  | 2021 |
|  | NT$ |  |  | NT$ |  |  | NT$ |  |  | US$ (Note 4) |
Profit for the year attributable to owners of the Company |  | $ | 17,060,591 |  |  | $ | 26,970,580 |  |  | $ | 60,150,167 |  |  | $ | 2,168,353 |
Effect of potentially dilutive ordinary shares: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Potential ordinary s hares of the subsid iary |  |  | (385,865 | ) |  |  | (521,073 | ) |  |  | (1,056,778 | ) |  |  | (38,096 | )
Earnings used in the computation of diluted earnings per share |  | $ | 16,674,726 |  |  | $ | 26,449,507 |  |  | $ | 59,093,389 |  |  | $ | 2,130,257 |
Weighted average number of ordinary shares outstanding (in thousand shares):
|  | For the Year Ended December 31 |
|  | 2019 |  |  | 2020 |  |  | 2021 |
Weighted average number of ordinary shares in the computation of basic earnings per share |  |  | 4,251,964 |  |  |  | 4,265,732 |  |  |  | 4,305,348 |
Effect of potentially dilutive ordinary shares |  |  |  |  |  |  |  |  |  |  |  |
Employee share options |  |  | 10,232 |  |  |  | 22,086 |  |  |  | 58,113 |
Employees’ compensation |  |  | 570 |  |  |  | 815 |  |  |  | 1,264 |
Employee restricted stock awards |  |  | — |  |  |  | — |  |  |  | 943 |
Weighted average number of ordinary shares in the computation of diluted earnings per share |  |  | 4,262,766 |  |  |  | 4,288,633 |  |  |  | 4,365,668 |

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- Definition The disclosure of earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 66 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_66&doctype=Standard -URIDate 2021-03-24 + Details
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