Stock-based Compensation, Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2024 |
Sep. 30, 2023 |
|
| Stock-based Compensation Expense [Abstract] | ||||
| Stock-based compensation | $ 776 | $ 573 | $ 2,567 | $ 2,799 |
| General and Administrative [Member] | ||||
| Stock-based Compensation Expense [Abstract] | ||||
| Stock-based compensation | 549 | 335 | 1,850 | 1,969 |
| Research and Development [Member] | ||||
| Stock-based Compensation Expense [Abstract] | ||||
| Stock-based compensation | $ 227 | $ 238 | $ 717 | $ 830 |