Income Taxes - Summary of Tax Effects of Temporary Differences and Carryforwards of Deferred Tax Deferred Tax and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Net operating loss carryforwards	$ 50,494	$ 44,568
Depreciation and amortization	4,656	3,375
Accruals and reserves	3,577	2,666
Interest expense limitation carryforward	2,229
Research and development credits	2,250	2,197
Gross deferred tax assets	63,206	52,806
Less: valuation allowance	$ (63,206)	(49,817)
Net deferred tax assets		2,989
Deferred tax liability:
Convertible debt embedded derivative		(2,989)
Total		$ 0