Stock-based Compensation, Share-Based Compensation Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2022 |
Sep. 30, 2021 |
|
Stock-based Compensation Expense [Abstract] | ||||
Stock-based compensation | $ 493 | $ 478 | $ 1,383 | $ 1,435 |
General and Administrative [Member] | ||||
Stock-based Compensation Expense [Abstract] | ||||
Stock-based compensation | 299 | 322 | 870 | 804 |
Research and Development [Member] | ||||
Stock-based Compensation Expense [Abstract] | ||||
Stock-based compensation | $ 194 | $ 156 | $ 513 | $ 631 |