Certain Balance Sheet Accounts - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment | $ 3,354 | $ 3,370 |
| Less: accumulated depreciation and amortization | (3,255) | (3,268) |
| Property and equipment, net | 99 | 102 |
| Tooling and manufacturing equipment | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment | 2,649 | 2,618 |
| Computer equipment | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment | 307 | 322 |
| Furniture and fixtures | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment | 289 | 289 |
| Software | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment | 106 | 106 |
| Leasehold improvements | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment | $ 3 | $ 35 |