Capital management (Details) - KRW (₩) |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Capital Management | |||
| Total liabilities | ₩ 147,341,032 | ₩ 34,424,674 | ₩ 38,697,788 |
| Less: Cash and cash equivalents | (8,364,432) | (4,150,572) | (8,585,634) |
| Net debt | 138,976,600 | 30,274,102 | 30,112,154 |
| Total equity | ₩ (21,607,997,000) | ₩ 8,175,613,000 | ₩ 11,689,723,000 |
| Net debt to total equity ratio | (643.00%) | 370.00% | 258.00% |