Stock-Based Compensation - Expense (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Stock-Based Compensation | ||||
| Net tax benefits related to the stock-based compensation costs | $ 0 | |||
| Stock-based compensation expense | $ 105,000 | $ 380,000 | 266,000 | $ 713,000 |
| Research and development | ||||
| Stock-Based Compensation | ||||
| Stock-based compensation expense | 17,000 | (4,000) | 33,000 | 147,000 |
| General and administrative | ||||
| Stock-Based Compensation | ||||
| Stock-based compensation expense | $ 88,000 | $ 384,000 | $ 233,000 | $ 566,000 |