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Income Taxes - Schedule of Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets (liabilities):
Accrual, write-down and other	$ 5,442	$ 3,249	$ 2,469
Depreciation and amortization		257	76
Depreciation and amortization	(818)
Net operating loss and credits carry forwards	64,690	52,445	42,949
Total gross deferred tax assets (liabilities)	69,314	55,951	45,494
Valuation allowance	(69,314)	(55,951)	(45,494)
Total net deferred tax assets	$ 0	$ 0	$ 0

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