Capital and other components of equity (Details 3) - Treasury shares [member] - CubeBio Co., Ltd. [Member] - KRW (₩) ₩ in Thousands |
6 Months Ended | 12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
Dec. 31, 2024 |
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| IfrsStatementLineItems [Line Items] | ||||||||||||
| Number of shares at beginning balance | 3,833,400 | 3,933,400 | 3,933,400 | 4,900,000 | ||||||||
| Carrying amount at beginning balance | ₩ 1,414,953 | ₩ 1,451,864 | ₩ 1,451,864 | ₩ 1,808,647 | ||||||||
| Acquisition, shares | 0 | 0 | ||||||||||
| Acquisition carrying amount | ₩ 0 | ₩ 0 | ||||||||||
| Disposal, shares | 40,000 | [1] | 100,000 | [1] | 100,000 | [2] | 966,600 | [2] | ||||
| Disposal, carrying amount | ₩ 14,765 | [1] | ₩ 36,911 | [1] | ₩ 36,911 | [2] | ₩ 356,783 | [2] | ||||
| Number of shares at ending balance | 3,793,400 | 3,833,400 | 3,833,400 | 3,933,400 | ||||||||
| Carrying amount at ending balance | ₩ 1,400,188 | ₩ 1,414,953 | ₩ 1,414,953 | ₩ 1,451,864 | ||||||||
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