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Accrued Expenses and Other Current Liabilities
 9 Months Ended
Sep. 30, 2021
Payables and Accruals [Abstract]  
Accrued Expenses and Other Current Liabilities Accrued Expenses and Other Current Liabilities
The following table presents the composition of accrued expenses and other current liabilities (in thousands):
As of September 30,
2021		As of December 31,
2020
Accrued clinical and related costs$3,272 $2,753 
Accrued compensation and related costs1,841 2,260 
Accrued interest44 69 
Current portion of operating lease liability485 459 
Accrued other481 390 
Accrued expenses and other current liabilities$6,123 $5,931