| Line Item | Dec 31, 2025 | Dec 31, 2024 | Dec 31, 2023 | Dec 31, 2022 | Dec 31, 2021 | Dec 31, 2020 |
|---|---|---|---|---|---|---|
| Revenues | ||||||
| Total revenues | ||||||
| YoY growth | -40.9% | |||||
| Cost of revenues | ||||||
| Gross profit | ||||||
| % of revenue | 37.3% | |||||
| Operating expenses: | ||||||
| Selling and marketing | ||||||
| General and administrative | ||||||
| Total operating expenses | ||||||
| % of revenue | -111.0% | |||||
| Loss from operations | ||||||
| % of revenue | -73.7% | |||||
| Other income (expense) | ||||||
| Other expense, net | ||||||
| Interest income | ||||||
| Loss before income taxes | ||||||
| Income tax expenses | ||||||
| Net loss | ||||||
| % of revenue | -88.9% | |||||
| Less: Net income attributable to non-controlling interests | ||||||
| Net loss attributable to Lichen International Limited | ||||||
| % of revenue | -89.6% | |||||
| (Loss) Earnings per ordinary share – diluted (in Dollars per share) | ||||||
| (Loss) Earnings per ordinary share – basic (in Dollars per share) |