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v3.21.2

Accrued Expenses and Other Current Liabilities (Details) | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2020 employee | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Dec. 31, 2020 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Research and development |  | $ 1,100,000 |  | $ 1,100,000 |  | $ 512,000
Clinical |  | 585,000 |  | 585,000 |  | 117,000
Professional fees |  | 610,000 |  | 610,000 |  | 405,000
Employee-related |  | 1,155,000 |  | 1,155,000 |  | 963,000
Severance-related |  | 90,000 |  | 90,000 |  | 712,000
Other |  | 422,000 |  | 422,000 |  | 232,000
Total accrued expenses and other current liabilities |  | 3,962,000 |  | 3,962,000 |  | $ 2,941,000
Severance costs |  | 100,000 | $ 200,000 | 600,000 | $ 200,000 |
Severance-related charges |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Number of employees given notice of termination | employee | 5 |  |  |  |  |
Restructuring charges |  | 0 | 400,000 |  | 1,100,000 |
Expected severance benefits to be paid |  | $ 100,000 |  | $ 100,000 |  |
Severance-related charges | Research and development |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring charges |  |  | $ 400,000 |  | 900,000 |
Severance-related charges | General and administrative |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring charges |  |  |  |  | $ 200,000 |

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