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v3.23.1

Description of Business and Basis of Financial Statements (Details) $ in Thousands | 107 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2023 USD ($) employee lease | Dec. 31, 2022 USD ($) | Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Subsequent Event [Line Items] |  |  |  |
Number of employees | employee | 73 |  |  |
Number Of Development Programs | lease | 3 |  |  |
Accumulated deficit | $ (342,552) | $ (317,280) |  |
Proceeds from issuance of private placement | 355,600 |  |  |
Cash, cash equivalents and restricted cash | 92,761 | 106,745 | $ 95,710 | $ 86,863
Investments - other | $ 4,351 | $ 9,629 |  |

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