Certain Balance Sheet Accounts - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Prepaid insurance	$ 4,531	$ 499
Prepaid expenses	872	163
Prepaid hosting	527	369
Point of purchase ("POP") displays	488	376
Prepaid Inventory	387	0
Right of return asset	282	146
Other current assets	1	93
Total prepaid expenses and other current assets	$ 7,088	$ 1,646