Income taxes (Details 4) - KRW (₩) ₩ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Income Taxes | ||
| Tax loss carryforwards | ₩ 7,875,304 | ₩ 1,039,258 |
| Tax credit carryforwards | 3,615,817 | 3,118,117 |
| Unrecognized temporary difference | ₩ 3,296,738 | ₩ 1,698,208 |