Stock-Based Compensation, Components of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2022 |
Jun. 30, 2021 |
Jun. 30, 2022 |
Jun. 30, 2021 |
|
Stock-Based Compensation Expense [Abstract] | ||||
Total stock-based compensation expense | $ 647 | $ 581 | $ 1,505 | $ 835 |
Research and Development [Member] | ||||
Stock-Based Compensation Expense [Abstract] | ||||
Total stock-based compensation expense | 154 | 89 | 379 | 156 |
General and Administrative [Member] | ||||
Stock-Based Compensation Expense [Abstract] | ||||
Total stock-based compensation expense | $ 493 | $ 492 | $ 1,126 | $ 679 |