Stock-Based Compensation - Schedule of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands |
9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Schedule of Stock-based Compensation Expense [Line Items] | ||||
| Total stock-based compensation expense | $ 1,421 | $ 1,603 | $ 1,941 | $ 383 |
| Research and development [Member] | ||||
| Schedule of Stock-based Compensation Expense [Line Items] | ||||
| Total stock-based compensation expense | 490 | 1,247 | 1,416 | 224 |
| Selling, general, and administrative [Member] | ||||
| Schedule of Stock-based Compensation Expense [Line Items] | ||||
| Total stock-based compensation expense | $ 931 | $ 356 | $ 525 | $ 159 |