Details of Significant Accounts - Capital Surplus, schedule of capital surplus (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Details of Significant Accounts [Abstract] | ||
| Additional paid-in capital | $ 477,415 | $ 477,415 |
| Other: | ||
| Employees’ stock option cost | 9,901 | 9,614 |
| Retirement of treasury shares | 27,371 | 27,371 |
| Subtotal | 37,272 | 36,985 |
| Capital surplus | $ 514,687 | $ 514,400 |
| X | ||||||||||
- Definition The amount received or receivable from the issuance of the entity's shares in excess of nominal value and amounts received from other transactions involving the entity's stock or stockholders. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount received or receivable from the issuance of the entity's shares in excess of nominal value. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of capital surplus other than additional paid-in capital. No definition available.
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- References No definition available.
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- Definition Represents the employee stock option cost. No definition available.
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- References No definition available.
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- Definition Retirement of Treasury Shares In Capital Surplus No definition available.
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