Quarterly report pursuant to Section 13 or 15(d)

Prepaid Expenses and Other Current Assets (Details)

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Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Prepaid Expense and Other Assets, Current [Abstract]    
Security deposits $ 295 $ 334
Inventory prepayments 9,247 3,722
Other 3,548 24
Prepaid expenses and other current assets $ 13,090 $ 4,080