| Line Item | Jun 30, 2026 | Mar 31, 2026 | Jun 30, 2025 | Mar 31, 2025 |
|---|---|---|---|---|
| Collaboration revenue | ||||
| Operating expenses: | ||||
| Research and development | ||||
| General and administrative | ||||
| Change in fair value of contingent consideration | ||||
| Total operating expenses | ||||
| % of revenue | — | — | ||
| Operating loss | ||||
| % of revenue | — | — | ||
| Other income (expense), net: | ||||
| Interest income | ||||
| Interest expense | ||||
| Other expense, net | ||||
| Total other income, net | ||||
| Loss before income taxes | ||||
| Income tax provision | ||||
| Net loss | ||||
| % of revenue | — | — | ||
| Net loss attributable to common stockholders (see Note 15) | ||||
| Net loss per share attributable to common stockholders, basic | ||||
| Net loss per share attributable to common stockholders, diluted |