Stockholders Equity (Stock-based Compensation Expense) (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2024 |
Mar. 31, 2023 |
|
| Total stock-based compensation expense | $ 76 | $ 235 |
| General and administrative | ||
| Total stock-based compensation expense | 47 | 109 |
| Research and development | ||
| Total stock-based compensation expense | $ 29 | $ 126 |
| X | ||||||||||
- Definition Amount of noncash expense for share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|