The
following table summarizes stock-based compensation expense related to stock options, restricted stock awards (RSAs) granted to employees,
non-employee directors and consultants, and the 2019 Employee Stock Purchase Plan (the 2019 ESPP) included in the condensed consolidated
statements of operations as follows (in thousands):
Schedule of Stock-based Compensation Expense Related to Stock Options
| |
2023 | | |
2022 | | |
2023 | | |
2022 | |
| |
Three Months Ended
September 30, | | |
Nine Months Ended
September 30, | |
| |
2023 | | |
2022 | | |
2023 | | |
2022 | |
| |
| | |
| | |
| | |
| |
Research and development | |
$ | 30 | | |
| 150 | | |
$ | 99 | | |
| 491 | |
Selling and marketing | |
| 42 | | |
| 144 | | |
| 146 | | |
| 459 | |
General and administrative | |
| 186 | | |
| 687 | | |
| 698 | | |
| 2,179 | |
Total | |
$ | 258 | | |
$ | 981 | | |
$ | 943 | | |
$ | 3,129 | |
|