Balance Sheet Components - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 14,498 | $ 13,920 |
| Less: Accumulated depreciation | (1,119) | (321) |
| Property and equipment, net | 13,379 | 13,599 |
| Construction in progress [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 905 | 909 |
| Furniture [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 145 | 139 |
| Computers and equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 78 | 75 |
| Leasehold improvements [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 3,909 | 3,746 |
| Machinery and lab equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 8,562 | 8,192 |
| Land and Building [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 899 | $ 859 |