Segment Information - Schedule of Disaggregated Amounts of Research and Development Expenses (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Segment Reporting Information [Line Items] | ||||
| Personnel related (including stock-based compensation) | $ 313 | $ 2,150 | $ 948 | $ 5,722 |
| Other research and development cost | 179 | 630 | 380 | 2,212 |
| Total research and development expenses | 4,025 | 9,832 | 7,740 | 19,477 |
| IK-930 | ||||
| Segment Reporting Information [Line Items] | ||||
| Total research and development expenses | 313 | 3,846 | 712 | 6,304 |
| IK-595 | ||||
| Segment Reporting Information [Line Items] | ||||
| Total research and development expenses | 3,123 | 2,318 | 5,574 | 3,982 |
| IK-175 | ||||
| Segment Reporting Information [Line Items] | ||||
| Total research and development expenses | 33 | 86 | 41 | 498 |
| Discovery and Other Programs | ||||
| Segment Reporting Information [Line Items] | ||||
| Total research and development expenses | $ 64 | $ 802 | $ 85 | $ 759 |