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Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Prepaid Expenses and Other Current Assets    
Reimbursable research and development costs from a collaboration partner $ 1,082  
Interest receivable on marketable securities 457 $ 130
Prepaid subscriptions and licenses 440 291
Prepaid insurance 387 1,766
Prepaid research contracts 14 239
Prepaid clinical trial costs   916
Other 78 93
Total $ 2,458 $ 3,435