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Accrued expenses and other current liabilities (Tables)
 6 Months Ended
Jun. 30, 2022
Payables and Accruals [Abstract]  
Summary of accrued liabilities
Accrued expenses and other current liabilities consisted of the following (in thousands):
 June 30,
2022		December 31,
2021
Accrued expenses and other current liabilities:
Accrued research and development$8,234 $6,863 
Accrued compensation and benefits3,727 5,084 
Accrued capital expenditures2,766 — 
Accrued professional fees947 1,246 
Other1,284 413 
Total accrued expenses and other current liabilities$16,958 $13,606