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Cash and Cash Equivalents (Tables) | 12 Months Ended
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Dec. 31, 2021
Text block [abstract] |
Summary of Cash and Cash Equivalents |
|  | December 31 |
|  | 2020 |  |  | 2021 |
|  | NT$ |  |  | NT$ |  |  | US$ (Note 4) |
Cash on hand |  | $ | 6,073 |  |  | $ | 5,638 |  |  | $ | 203 |
Checking accounts and demand deposits |  |  | 48,734,866 |  |  |  | 47,094,687 |  |  |  | 1,697,718 |
Cash equivalents (time deposits with original maturity of less than three months and repurchase agreements collateralized by bonds) |  |  | 2,797,132 |  |  |  | 28,973,020 |  |  |  | 1,044,449 |
|  | $ | 51,538,071 |  |  | $ | 76,073,345 |  |  | $ | 2,742,370 |

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